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ViaSat is an innovative satellite communications company that has developed efficient bandwidth technologies like SurfBeam and LinkStar. Their Ka-band Viasat-1 satellite will transform broadband by providing significantly more capacity through smaller spot beams. SurfBeam uses DOCSIS technology to deliver satellite broadband access cost effectively to consumers, while LinkStar employs DVB-S2 and dynamic link adaptation to maximize efficiency for enterprise networks. These platforms help ViaSat deliver broadband services globally with major network deployments and customers.

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ViaSat Proprietary Innovative Bandwidth Savings Techniques Beyond Modulation Rio de Janeiro May 27,2008 Transforming Satellite Broadband Communications Paul Sandoval Business Director, Latin America paul.sandoval@viasat.com Viasat Inc.
ViaSat Proprietary Company Introduction
ViaSat Proprietary Introduction to ViaSat Founded in 1986 Long-term record of growth & profitability Headquarters in San Diego, California USA Major Facilities near Atlanta & Washington DC US Monolithics subsidiary in Chandler, AZ ECC subsidiary in Ohio Other offices in: Boston Rome Sydney Brazil New Delhi Beijing Baltimore/DC Santiago
ViaSat Proprietary Business Mix Government Systems Commercial Satellite Networks Antenna Systems
ViaSat Proprietary Government Sector Modems Transportables Comm-On-the-Move PortablesUHF
ViaSat Proprietary Commercial Sector Satellite NetworksAntenna Systems Subsidiaries
ViaSat Proprietary Broadband Networks
ViaSat Proprietary ViaSat’s Hybrid Network Convergence! LinkStarS2, DVBS2-ACM VSAT Network System LinkWayS2, Full Mesh and Hybrid DVBS2 Mesh-Star Networking ArchLight Modem Mobile Broadband all in one Platform EBEM Optimized SCPC point to point point to multipoint Networking LinkWay s2 EBEM Medium to High Capacity SCPC Solution DVB-S2 ACM-TDMA Star Solution DVB-S2 TDMA Star/Mesh Solution ArcLight Mobile FSS Solution LinkStar s2
ViaSat Proprietary Market mix Large EnterpriseConsumer Mobile Platforms SME / SOHO Defense Broadband, Mobile, IP Mobile Personal
ViaSat Proprietary SurfBeam DOCSIS The platform of choice for Internet Access
ViaSat Proprietary Strongest Market Position in the World What is the fastest growing VSAT network in the world? WildBlue powered by SurfBeam! More people are selecting this network than any other in the USA WildBlue network used for many applications including distance learning
ViaSat Proprietary WildBlue Direct to Home Broadband Low cost satellite broadband Fastest growing consumer broadband ever Dish DirecTV AT&T Over 350k terminals delivered to date Additional contract for 500k terminals signed May 2007
ViaSat Proprietary Big International Success Successful networks outside of US demonstrate international product appeal Pegaso in Latin America have demonstrated product appeal to vertical markets. Canada’s Telesat has successfully sold into the retail/consumer space Intelsat network for Middle East Eutelsat to emulate WildBlue success in Europe Ka-band capacity on Eutelsat’s HB-6 is being used to support service this year Additional capacity will be deployed to meet demand
ViaSat Proprietary How will Viasat-1 will transform the future of Satellite Broadband
ViaSat Proprietary Key Satellite Technologies Ka-band, Spot Beam Satellites Higher capacity per satellite = lower cost per bit Adaptive Coding and Modulation Robust against link impairments Spectral efficiency DOCSIS – Satellite Leverages cable investments to mass market Satellite broadband
ViaSat Proprietary Anik F2 Shared between WildBlue (US) and Telesat (Canada) 45 User spot beams 6 Gateways Gateway
ViaSat Proprietary Satellite Broadband Subscribers follow the population US Population Density Satelllite Broadband Subscriber Distribution
ViaSat Proprietary Viasat-1
ViaSat Proprietary Extraordinary Capacity: ‘Bits in Space’…
ViaSat Proprietary …while Managing In-orbit Costs...
ViaSat Proprietary …and Achieving Superior Capital Efficiency $M/Gbps$M/Gbps
ViaSat Proprietary The Partners Lead investor ViaSat-1 Satellite networking technology Next-Gen SurfBeam ground systems KA SAT – 13 E orbital slot Europe’s leading TV neighborhood Strategic business relationship European operations using ViaSat next- gen SurfBeam ground systems Longtime partner: VSAT, defense, mobile, Tooway Ka Satellite builder for ViaSat-1 1st Ka spot beam satellite One of top two global Ka service providers Investor in Canadian capacity Contributes 115 W orbital slot
ViaSat Proprietary Surfbeam-DOCSIS Platform Architecture
ViaSat Proprietary SurfBeam & DOCSIS DOCSIS Standard for consumer Internet Access over cable worldwide Designed specifically for lowest cost of operation and deployment Mature and proven business model – deployed virtually in all cable operations worldwide – millions of modems DOCSIS-Over-Satellite Virtually 95% identical to the existing systems Identical chipsets in the user CPE and the hub/headend Plug and play compatibility with hundreds of infrastructure products for competitive satellite based service offering Not an adaptation of a VSAT model to consumer but an adaptation of a consumer system to satellite
ViaSat Proprietary The SurfBeam System SM ODU User PC IP Switch/ Firewall Access Router SMTS Network Operations Center (NOC) SiSi Device Provisioning System Network Management System TCP/HTTP Acceleration Internet Gateway RF OSS Subscriber/ Provisioning Databases SurfBeam Gateway SurfBeam Subscriber Terminal
ViaSat Proprietary SurfBeam combines ViaSat and Partner products Products developed by ViaSat Satellite Modem Termination System (SMTS) • Adapted from Motorola Cable head end Satellite Modem (SM) • High performance, low cost Outdoor Equipment (ODUs) • Antenna and Transceiver ViaSat Partners Provisioning Systems Operational Support and Back-office Systems Gateway Management
ViaSat Proprietary Total Business Solution Business Support System Operations Support System Network Management System MAC Layer (Media Access Control) Physical LayerDVB-RS DOCSIS (1.1) & 3rd Party Vendors Other Proprietary SurfBeam
ViaSat Proprietary 2003 2004 2005 200620032003 20042004 20052005 20062006 Satellite Modem Evolution 11stst GenerationGeneration • Ku-band • Ext. pwr supply • Dual Rx/Tx IFL • 10/100 bT Enet • L2 bridge 22ndnd GenerationGeneration • New enclosure • Adds built-in TCP PEP 33rdrd GenerationGeneration • Adds Ka-band support • Built-in HTTP accel. ViaSat Proprietary & Confidential 44thth GenerationGeneration • New enclosure • Smaller power supply ViaSat Production: 100+/month 1,000+/month 20,000+/month
ViaSat Proprietary Service Flow Scheduling Service Flow Scheduling Types Support for multiple upstream schedulers • DOCSIS-inherited – Best Effort – Unsolicited Grant Service – Real-time Polling Service – Non-real-time Polling Service • Satellite-enhanced – Enhanced Multi-State Scheduler (EMSS) – Demand Assignment Multiple Access (DAMA) Most widely deployed Demand Assignment Multiple Access (DAMA) • Bandwidth requested in upstream contention regions • Bandwidth allocated based on near-term demand—taking into account immediate need combined with traffic patterns characteristic of the traffic type (e.g., WWW) Unsolicited Grant Service (UGS) • Periodic bandwidth allocation • Bandwidth allocation is either static (i.e., “always on”) or dynamic (i.e., assigned when traffic is classified into a UGS-defined service flow • Typically used for CIR-type services • In use today for customer deployments that offer VoIP and Video value-added services
ViaSat Proprietary Linkstar Platform Architecture
ViaSat Proprietary Blue-chip Linkstar Customers InterDirec Miditel Vitacom Richgain CNPC Datacom Weida SSE Shenzen Sec. SVA ISS Speedcast SMART Celcom Indosat Scopetel Transtel Sentech Q-Kon Telespazio Brazil Comsat International COC TBGI Eutelsat/Skylogic Intelsat Telespazio Indra Union Fenosa KB Impuls Lukoil Race Comm. Heliosnet Classica Telstra Newsat Multimedia BTL Linkserve ABG ACS Comsat International PDVSA CANTV Tata HCL Comnet Bharti ISRO IO Global Essel Shyam U.S. Military HiCap NSTT AIC Shoppers Intralot Mainstream USFK Caprock RAM Telecom MBS HITN MCI 150+ LinkStar Hubs & 100,000+ Terminals Delivered Commercial, Government & Military Applications Telikom PNG Bank S. Pacific Tuaropaki Fintel UNETE Motorola Telespazio Argentina Velconet Comsat Tarim Oil Entel Globalnet CNTV
ViaSat Proprietary Two LinkStarS2A Hub Choices High Capacity MX Series Hub Up to 8,000 remotes per region Up to 80,000 remotes per hub Choice of maximum downstream rates Lower Cost C-Series Hub C-250 supports up to 250 sites C-500 supports up to 500 sites 10 Mbps maximum outbound rate Field upgradeable to LinkStar MX Hub Same rich features as LinkStar MX Hub
ViaSat Proprietary DVB-S2 Technology for Highest Downstream Efficiency LinkStarS2A with DVB-S2 typically uses 30-40% less satellite bandwidth than DVB-S: LDPC Coding eliminates 8% Reed Solomon overhead. 1.2 carrier spacing uses 11% less bandwidth than 1.35 Includes QPSK, 8PSK, & 16APSK waveforms LinkStarS2 is field proven in more than 40 networks worldwide
ViaSat Proprietary LinkStarS2 “DLA” Technology for Highest Upstream Efficiency LinkStarS2 “DLA” – Dynamic Link Adaptation eliminates wasted satellite capacity for rain margin Upstream carrier operates at most bandwidth efficient symbol rate & coding during clear sky Rain faded sites automatically undergo two dimensional rain compensation 1. Automatic change to more robust FEC (e.g. 6/7 to 2/3) 2. Automatic change to lower symbol rate Reduces upstream satellite bandwidth by up to 18% Carrier Frequency Spectrum with DLA -20 -15 -10 -5 0 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Transponder Frequency (MHz) Carrier Frequency Spectrum without DLA -20 -15 -10 -5 0 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Transponder Frequency (MHz) 16 MHz Qty 20 x 625 ksps FEC = 2/3 carriers 13.2 MHz Qty 16 x 625 ksps FEC = 6/7 carriers + qty 1 x 312 ksps carrier for fade mitigation
ViaSat Proprietary Bandwidth Efficient Upstream Access Schemes Optimize Satellite Bandwidth Usage Committed Information Rate (CIR) Provides guaranteed bandwidth Bandwidth on Demand (BOD) Reduces bandwidth usage by allocating bandwidth only when needed from common pool Carrier Load Balancing - Dynamically balances the load among all inbound carriers based on traffic activity for efficient bandwidth utilization Slotted Aloha Fast response time for bursty traffic Efficient for narrowband/transactional traffic CIR Reallocation Provides guaranteed bandwidth when needed Bandwidth available to common (BOD) pool when not needed Optimized satellite bandwidth usage = reduced OPEX costs
ViaSat Proprietary Efficient Access Schemes (con’t) Multi-channel Traffic Burst Improves efficiency by dynamically allocating one big burst instead of multiple small bursts for large data rate requirement Multi-frame Traffic Burst Allocates available bandwidth to larger quantities of remote terminals Multi-frame CIR Ensures guaranteed bandwidth for larger quantities of remotes for narrowband applications Application Triggered BoD Enables broadband access to the hub without compromising transactional traffic Triggers immediate high speed BoD channel based on customer specified parameters Application Triggered CIR Similar scheme as Application Triggered BoD, but assigns CIR channel Ideal for voice and videoconferencing applications
ViaSat Proprietary Quality of Service Site Level QoS Prioritizes IP and satellite resources within the RCST Mandatory for time sensitive applications like voice over IP (VoIP) and videoconferencing Sets priority with Diffserv based 6 classes of service Honors priority from other devices via TOS byte Network Wide QoS Prioritizes upstream satellite bandwidth by site • Ideal for military applications Prioritizes upstream satellite bandwith by application • Ideal for voice services Three levels of prioritization
ViaSat Proprietary Receive Only LinkStar Feature Highlights DVB-S2 CCM, VCM optional 5 to 36Msym/s, other rates optional Up to 50 Mbps IP Throughput Unicast or Multicast IP Addressing Optional AES IP Data Encryption Easy upgrade to 2-Way operation Applications Digital Media Downloads Digital Cinema Stock Tickers LinkStar
ViaSat Proprietary Compression Accelenet
ViaSat Proprietary Why AcceleNet® ? Best Internet Navigation Experience Multiply your Speed in Half the Bandwidth
ViaSat Proprietary Solving Network Performance Challenges Compression Dramatically reduce bytes uploaded and downloaded to increase effective bandwidth available Round-trip reduction Reduce the round-trips required to complete transactions to dramatically improve perceived application performance Optimized Transport Replace TCP with a transport that performs optimally over problematic links, reduces retransmissions and increases network utilization
ViaSat Proprietary Benefits of Transport Optimization With Compression Without AcceleNet With AcceleNet ITP With AcceleNet ITP + AcceleNet Compression *results based on third party testing 50-75% bandwidth reduction Transport Optimization
ViaSat Proprietary Optimized Application Performance HTTP Servers Enterprise Email Servers AcceleNet improves effective Bandwidth, network utilization, and measured performance • Fewer bytes transferred • Single Round Trip • Minimal Retransmissions • Optimal use of network Server Client
ViaSat Proprietary AcceleNet Architecture T1, DSL, satellite, dial, cellular Radius authentication TCP data encryption No open listening ports Desktops, laptops, PDAs, Smartphones
ViaSat Proprietary HTTP Acceleration Benefits: 90% reduction in number of round trips AcceleNet Proprietary HTTP proxy models the browser cache to avoid downloading cached objects. Software solution provides significantly more object buffering than possible on any modem. Greater bandwidth savings and faster performance than any modem- or client-based solution on the market today. Uniquely pre-fetches ALL objects in a single request, including dynamically-generated URLs; industry’s highest pre-fetch ratios are achieved.
ViaSat Proprietary Data Reduction-Compression 75% average bandwidth savings in both directions Patented and custom modules compress HTML and other web-specific objects Large Browser History with multiplexed connection history sharing Large history buffers shared across all TCP connections in a session. Variable image and multimedia compression Further compression and content filtering of images (.jpg, .gif, .bmp, .png, etc.) and multimedia files (.swf) providing even greater bandwidth savings. Dynamic Compression Engine Selection ‘on the fly’ to determine appropriate compression techniques. Browser cache verification Guarantees that cache is never stale; maintains most current content. AcceleNet replaces TCP with proprietary more efficient ITP (Intelligent Transport Protocol) protocol; header compression can save some bandwidth but AcceleNet has completely eliminated this problem.
ViaSat Proprietary Transport Optimization Benefits: 8x greater throughput Bi-directional flow control ITP maximizes link utilization by measuring the characteristics of the connection and automatically adjusting the data flow; greatly outperforming basic techniques like TCP and connection establishment spoofing which provide limited benefit. ITP maintains over 95% bandwidth efficiency with packet loss up to 3% while TCP based connections bandwidth efficiency drops to less than 35%.Packet-based accountingBetter packet-loss handling; outperforms stream-based techniques. Multiplexed TCP connections; Uniquely optimizes the link over multiple TCP connections instead of each TCP connection, providing much greater performance especially for web browsing, which uses multiple TCP sessions per site. Application-aware optimization; Improves bandwidth efficiency with advanced retransmission decisions based on type of request; e.g., HTTP GET request vs. dropped packet in a file transfer. ACK reduction; Improves bandwidth efficiency; acknowledges 64 packets in a single ACK.
ViaSat Proprietary AcceleNet Bandwidth Reduction with typical Brazilian web sites Upstream Bytes Downstream Bytes Websites Un- accelerated AcceleNet (Perfect Quality) AcceleNet (Fair Quality) Un- accelerated AcceleNet (Perfect Quality) AcceleNet (Fair Quality) http://www.uol.com.br 55K 18K 14K 313K 281K 163K http://www.terra.com.br 82K 19K 20K 415K 295K 158K http://www.folha.uol.com.br 72K 29K 14K 527K 353K 159K http://br.yahoo.com 28K 9K 7K 227K 111K 70K http://www.globo.com 27K 11K 8K 247K 186K 84K http://www.bradesco.com.br 38K 8K 8K 252K 176K 83K http://www.bondfaro.com.br 39K 16K 14K 247K 226K 172K http://www.pop.com.br 24K 9K 8K 191K 165K 59K http://www.omelete.com.br 65K 18K 16K 491K 287K 202K Total (bytes) 434K 137K 109K 2,910K 2,080K 1,150K Compression Ratio 3.2 4.0 1.4 2.5 % bandwidth saved 69% 75% 29% 60%
ViaSat Proprietary Leaders Who Trust AcceleNet OEMs ISPs Enterprises $20B auditing, accounting and tax services firm 900+ location fast food restaurant
ViaSat Proprietary Scaleable, Field-Hardened Technology 2 million+ AcceleNet clients via MSN9 18 months flawless operation Extensive client logs gathered every day by MSN Five 9’s AcceleNet server availability at MSN 200+ servers
ViaSat Proprietary LinkWay/LinkStar Hybrid Full Mesh-Star Topologies LinkWay 2100 LinkWay S2 LinkWayS2 LinkWay originally designed in 1996, is industry leader in Full Mesh Networks Both commercial and military field proven (8th generation full mesh MF- TDMA platform) What’s new? LinkWayS2 adds DVB-S2 receiver – enables hybrid network
ViaSat Proprietary Hybrid Star and Mesh network LWS2 LWS2 LWS2 Mesh node with LinkWayS2 modem Teleport/ Step Site DVB (DVB-S2) Star Modulator LAN LWS2 MF-TDMA MF-TDMA TDM (DVB-S2) outbound carrier MF-TDMA MF-TDMA
ViaSat Proprietary Enhanced Bandwidth Efficient Modem (MD-1366/U and MD-1366A/U) Standardized Access to the GIG!
ViaSat Proprietary EBEM- Industry’s first and only have it all modem Advanced Modulations and Turbo Codes BPSK, QPSK, OQPSK, 8-PSK, 16-APSK Turbo R=1/2, 2/3, 3/4, 7/8, 19/20 64 kbps 155 Mbps, 32 ksps 60 Msps AES-256 Scramble Automatic Transmit Power Control Seamless Antenna Handover Capability ACM (Adaptive coding and modulation) Interoperability for Various Modems on Market 1U Packaging
ViaSat Proprietary MD-1366 Performance Advantages Best-In-Class Power & Bandwidth Efficiency 165B for Best Performance 165A/IESS for Interoperability Modulation Code Rate Bits/ sec/Hz Spec Eb/No 16-APSK Turbo 19/20 3.17 10.90 16-APSK Turbo 7/8 2.92 8.90 16-APSK Turbo 3/4 2.50 7.75 16-APSK Turbo 2/3 2.22 6.75 8-PSK Turbo 3/4 1.88 6.55 16-APSK Turbo 1/2 1.67 5.00 QPSK Turbo 7/8 1.46 4.70 QPSK Turbo 3/4 1.25 3.90 QPSK Turbo 2/3 1.11 3.20 QPSK Turbo 1/2 0.83 2.30 BPSK Turbo 1/2 0.42 2.15 Modulation Code Rate Bits/ sec/Hz Spec Eb/No 8-PSK TCM 2/3 1.67 10.20 8-PSK TCM 2/3 +RS 1.53 6.10 QPSK R=3/4 + RS 1.15 5.40 QPSK R=1/2 + RS 0.76 4.10 MD-1366 Turbo Coded Modes Outperform Turbo Product Codes Conform to new Standard ‘165B The most optimal mod/code points: supports any link budget or satellite MD-1366 Interoperable Modes Optimized performance OM-73, ‘165/165A, Intelsat BPSK to 8-PSK, R=1/2 to 7/8 Reed-Solomon outer codes Most Efficient Bits per Hertz (Sweet Spot 4.5 – 8 Eb/No)
ViaSat Proprietary Maximize Throughput with ACM Converts Link Margin to Data Rate Margin Other modems: add link margin to maintain low data rate MD-1366 w/ ACM: get a higher rate 99% the time Hitless Adaptation of Modulation and Coding As link conditions change, with no interruption in data Maintaining constant symbol rate and power level MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 31.55 Mbps ITA using 16-APSK 7/8 MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 23.98 Mbps ITA using 16-APSK 2/3 MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 13.50 Mbps ITA using QPSK 3/4
ViaSat Proprietary PCMA-Paired Carrier Multiple Access (Bandwidth optimizer)
ViaSat Proprietary Patented ViaSat PCMA technology allows 2 different satellite signals to operate on the same frequency Signal cancellation = BW savings Frequency f1 f2 W Hz W Hz Before Frequency f1 & f2 W Hz After Bandwidth savings can be as much as 50% !! Applicable to any modulation / FEC technique
ViaSat Proprietary PCMA – How It Works Overlapping uplink signal is subtracted to get desired downlink signal Terminal1 Uplink Terminal2 Uplink Downlink = Terminal1 + Terminal2 - - Rx Terminal2 Rx Terminal1
ViaSat Proprietary Gateway Downlink View VSAT Downlink View Gateway transmits Uplink signalGateway transmits Uplink signal Gateway cancels its received signalGateway cancels its received signal Subscriber Terminal transmits a return linkSubscriber Terminal transmits a return link Return link power too low to interfere with Outbound Return link above residual of cancelled Outbound Uplink Gateway receives inbound return links fromGateway receives inbound return links from VSATsVSATs Hub Canceller (Asymmetric PCMA)
ViaSat Proprietary PCMA Product Overview Compatible with existing modem technology Modulation: BPSK, QPSK, 8-PSK, 16-APSK, 16-QAM FEC: Sequential, Viterbi, Reed-Solomon & Turbo product codes Interfaces at IF between modem & RF chain Easy add-on with plug-n-play installation Operates at hub site and remote end-user locations Broadband operation 1 MHz to 36 MHz cancellation Easy “no-brainer” purchase decision ROI payoff between 2 to 6 months Product available in 10Mhz, 20Mhz, 36Mhz
ViaSat Proprietary More Product Details Key attributes Cancellation BW: 1 MHz to 36 MHz 70 MHz IF (52 to 88 MHz), supports C or Ku-band systems 25 dB min forward carrier signal cancellation Compact (1 RU 19 inch rack mount) Front panel and remote control (Ethernet) interface Redundancy switch configurations (1:1 and 1:8) Broad product compatibility and Modem Agnostic Comtech/EF Data Radyne/ComStream Paradise Others Optimize your Future and legacy links today!
ViaSat Proprietary Operational Considerations Link requirements Full-duplex circuits only (symmetric or asymmetric) Must be able to receive your own uplink signal (doesn’t work with cross-strap transponders) Implementation considerations Power is slightly increased over standard frequency pair approach (0.15 to 0.5 dB depending on near/far ratio) May need to change existing coding rates and modulation to take advantage of bandwidth reduction • Link budget analysis will determine link configuration and estimated overall savings of power and bandwidth with PCMA New services can be designed to maximize savings (e.g., optimal antenna size) Products DAMA – StarWire • 64 kbps - 2 Mbps SCPC modem integrated into network Hub Canceller • Hub-Spoke – ArcLight (Broadband, Gov. programs) • High-speed trunking Point-to-point
ViaSat Proprietary Asymmetric PCMA in a DVBS/S2/TDMA Network
ViaSat Proprietary Asymmetric PCMA in a TDM/SCPC returns
ViaSat Proprietary Symmetric PCMA in a SCPC Point to Point
ViaSat Proprietary Mobile Broadband
ViaSat Proprietary Ethernet ArcLight Mobile Broadband System Ku-Band Satellite Return Channel Receiver Subsystem Hub Antenna Forward Channel Modulator Return Link: 32 - 1024 kbps To Cabin LAN Internet Small Mobile Antenna Router Network Operations Center 512k – 30 Mbps Forward Link Hub Canceller Broadband Ku-band Satellite Transceiver
ViaSat Proprietary Large Business Jet Product ViaSat designed, developed and operates the SKYLink broadband satellite system Integrated satellite terminals for aircraft (multiple STCs) Ground earth stations Satellite network operator Antenna Size = 11.5” Total Weight = 32 lbs Prime Power < 200 Watts Equipment and service sold by as “SKYLink” > 60 Aircraft Flying Today!!
ViaSat Proprietary Similar experience to DSL or cable modem 10+ Mbps shore-to-ship 384 Kbps ship-to-shore 60 cm diameter antenna < 60 lbs system weight On-board connectivity options WiFi VoIP Cellular Future terminals 18” and 14” North America, Caribbean and European coverage today Antenna Modem Cellular Internet Voice NOC / Earth Station High speed connectivity to yachts and ships at sea Mini-VSAT Maritime Product 300 Systems on Order!!
ViaSat Proprietary Ship Terminal Larger 1m antenna for expanded ocean coverage Significant market Cellular Internet Voice Melco Antenna ViaSat Modem / System
ViaSat Proprietary ViaSat Vehicular Terminal Two-way broadband for government and enterprise vehicular applications 10+ Mbps to the vehicle 512 kbps from the vehicle Low Profile Antenna VMT-1501 Modem Roof-rack installation Vehicle pwr operation Outage mitigation features Web browsing, e-mail, VPN, file transfer, VoIP
ViaSat Proprietary Train Products ViaSat providing broadband to high speed trains in Europe Part of team with Eutelsat, France Telecom and Alstom Successful proof-of-concept demo conducted late 2006 Five train service trial starting November 2007 Fifty seven train initial service starting 2008
ViaSat Proprietary ACSM Waveform Example Coverage Footprint Modem RX Modem RX Modem RX Small Antenna Med Antenna Large Antenna Trash = Frame cannot be decoded - discarded • The Most Disadvantaged Terminal Can Receive Only Low Data Rate Frames • Most Advantaged Terminal Receives All FL Frames • Forward Link Receiver Filters Packets Addressed To Each Terminal F R 1/3 Data F R 1/2 Data F R 3/4 Data F R 1/3 Data F R 1/3 Data F Trash F Trash F R 1/3 Data F R 1/3 Data F R 1/2 Data F Trash F R 1/3 Data F R 1/3 Data F R 1/2 Data F R 3/4 Data F R 1/3 Data
ViaSat Proprietary One for all Mobile Broadband Application
ViaSat Proprietary Star-Mesh-Hybrid-PtoP…and more
ViaSat Proprietary Muito Obrigado-Muchas Gracias!

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Vsat day-2008-viasat

  • 1.
    ViaSat Proprietary Innovative BandwidthSavings Techniques Beyond Modulation Rio de Janeiro May 27,2008 Transforming Satellite Broadband Communications Paul Sandoval Business Director, Latin America paul.sandoval@viasat.com Viasat Inc.
  • 2.
  • 3.
    ViaSat Proprietary Introduction toViaSat Founded in 1986 Long-term record of growth & profitability Headquarters in San Diego, California USA Major Facilities near Atlanta & Washington DC US Monolithics subsidiary in Chandler, AZ ECC subsidiary in Ohio Other offices in: Boston Rome Sydney Brazil New Delhi Beijing Baltimore/DC Santiago
  • 4.
    ViaSat Proprietary Business Mix GovernmentSystems Commercial Satellite Networks Antenna Systems
  • 5.
  • 6.
    ViaSat Proprietary Commercial Sector SatelliteNetworksAntenna Systems Subsidiaries
  • 7.
  • 8.
    ViaSat Proprietary ViaSat’s HybridNetwork Convergence! LinkStarS2, DVBS2-ACM VSAT Network System LinkWayS2, Full Mesh and Hybrid DVBS2 Mesh-Star Networking ArchLight Modem Mobile Broadband all in one Platform EBEM Optimized SCPC point to point point to multipoint Networking LinkWay s2 EBEM Medium to High Capacity SCPC Solution DVB-S2 ACM-TDMA Star Solution DVB-S2 TDMA Star/Mesh Solution ArcLight Mobile FSS Solution LinkStar s2
  • 9.
    ViaSat Proprietary Market mix LargeEnterpriseConsumer Mobile Platforms SME / SOHO Defense Broadband, Mobile, IP Mobile Personal
  • 10.
    ViaSat Proprietary SurfBeam DOCSIS Theplatform of choice for Internet Access
  • 11.
    ViaSat Proprietary Strongest MarketPosition in the World What is the fastest growing VSAT network in the world? WildBlue powered by SurfBeam! More people are selecting this network than any other in the USA WildBlue network used for many applications including distance learning
  • 12.
    ViaSat Proprietary WildBlue Direct toHome Broadband Low cost satellite broadband Fastest growing consumer broadband ever Dish DirecTV AT&T Over 350k terminals delivered to date Additional contract for 500k terminals signed May 2007
  • 13.
    ViaSat Proprietary Big InternationalSuccess Successful networks outside of US demonstrate international product appeal Pegaso in Latin America have demonstrated product appeal to vertical markets. Canada’s Telesat has successfully sold into the retail/consumer space Intelsat network for Middle East Eutelsat to emulate WildBlue success in Europe Ka-band capacity on Eutelsat’s HB-6 is being used to support service this year Additional capacity will be deployed to meet demand
  • 14.
    ViaSat Proprietary How willViasat-1 will transform the future of Satellite Broadband
  • 15.
    ViaSat Proprietary Key SatelliteTechnologies Ka-band, Spot Beam Satellites Higher capacity per satellite = lower cost per bit Adaptive Coding and Modulation Robust against link impairments Spectral efficiency DOCSIS – Satellite Leverages cable investments to mass market Satellite broadband
  • 16.
    ViaSat Proprietary Anik F2 Sharedbetween WildBlue (US) and Telesat (Canada) 45 User spot beams 6 Gateways Gateway
  • 17.
    ViaSat Proprietary Satellite BroadbandSubscribers follow the population US Population Density Satelllite Broadband Subscriber Distribution
  • 18.
  • 19.
  • 20.
  • 21.
    ViaSat Proprietary …and AchievingSuperior Capital Efficiency $M/Gbps$M/Gbps
  • 22.
    ViaSat Proprietary The Partners Leadinvestor ViaSat-1 Satellite networking technology Next-Gen SurfBeam ground systems KA SAT – 13 E orbital slot Europe’s leading TV neighborhood Strategic business relationship European operations using ViaSat next- gen SurfBeam ground systems Longtime partner: VSAT, defense, mobile, Tooway Ka Satellite builder for ViaSat-1 1st Ka spot beam satellite One of top two global Ka service providers Investor in Canadian capacity Contributes 115 W orbital slot
  • 23.
  • 24.
    ViaSat Proprietary SurfBeam &DOCSIS DOCSIS Standard for consumer Internet Access over cable worldwide Designed specifically for lowest cost of operation and deployment Mature and proven business model – deployed virtually in all cable operations worldwide – millions of modems DOCSIS-Over-Satellite Virtually 95% identical to the existing systems Identical chipsets in the user CPE and the hub/headend Plug and play compatibility with hundreds of infrastructure products for competitive satellite based service offering Not an adaptation of a VSAT model to consumer but an adaptation of a consumer system to satellite
  • 25.
    ViaSat Proprietary The SurfBeamSystem SM ODU User PC IP Switch/ Firewall Access Router SMTS Network Operations Center (NOC) SiSi Device Provisioning System Network Management System TCP/HTTP Acceleration Internet Gateway RF OSS Subscriber/ Provisioning Databases SurfBeam Gateway SurfBeam Subscriber Terminal
  • 26.
    ViaSat Proprietary SurfBeam combinesViaSat and Partner products Products developed by ViaSat Satellite Modem Termination System (SMTS) • Adapted from Motorola Cable head end Satellite Modem (SM) • High performance, low cost Outdoor Equipment (ODUs) • Antenna and Transceiver ViaSat Partners Provisioning Systems Operational Support and Back-office Systems Gateway Management
  • 27.
    ViaSat Proprietary Total BusinessSolution Business Support System Operations Support System Network Management System MAC Layer (Media Access Control) Physical LayerDVB-RS DOCSIS (1.1) & 3rd Party Vendors Other Proprietary SurfBeam
  • 28.
    ViaSat Proprietary 2003 20042005 200620032003 20042004 20052005 20062006 Satellite Modem Evolution 11stst GenerationGeneration • Ku-band • Ext. pwr supply • Dual Rx/Tx IFL • 10/100 bT Enet • L2 bridge 22ndnd GenerationGeneration • New enclosure • Adds built-in TCP PEP 33rdrd GenerationGeneration • Adds Ka-band support • Built-in HTTP accel. ViaSat Proprietary & Confidential 44thth GenerationGeneration • New enclosure • Smaller power supply ViaSat Production: 100+/month 1,000+/month 20,000+/month
  • 29.
    ViaSat Proprietary Service FlowScheduling Service Flow Scheduling Types Support for multiple upstream schedulers • DOCSIS-inherited – Best Effort – Unsolicited Grant Service – Real-time Polling Service – Non-real-time Polling Service • Satellite-enhanced – Enhanced Multi-State Scheduler (EMSS) – Demand Assignment Multiple Access (DAMA) Most widely deployed Demand Assignment Multiple Access (DAMA) • Bandwidth requested in upstream contention regions • Bandwidth allocated based on near-term demand—taking into account immediate need combined with traffic patterns characteristic of the traffic type (e.g., WWW) Unsolicited Grant Service (UGS) • Periodic bandwidth allocation • Bandwidth allocation is either static (i.e., “always on”) or dynamic (i.e., assigned when traffic is classified into a UGS-defined service flow • Typically used for CIR-type services • In use today for customer deployments that offer VoIP and Video value-added services
  • 30.
  • 31.
    ViaSat Proprietary Blue-chip LinkstarCustomers InterDirec Miditel Vitacom Richgain CNPC Datacom Weida SSE Shenzen Sec. SVA ISS Speedcast SMART Celcom Indosat Scopetel Transtel Sentech Q-Kon Telespazio Brazil Comsat International COC TBGI Eutelsat/Skylogic Intelsat Telespazio Indra Union Fenosa KB Impuls Lukoil Race Comm. Heliosnet Classica Telstra Newsat Multimedia BTL Linkserve ABG ACS Comsat International PDVSA CANTV Tata HCL Comnet Bharti ISRO IO Global Essel Shyam U.S. Military HiCap NSTT AIC Shoppers Intralot Mainstream USFK Caprock RAM Telecom MBS HITN MCI 150+ LinkStar Hubs & 100,000+ Terminals Delivered Commercial, Government & Military Applications Telikom PNG Bank S. Pacific Tuaropaki Fintel UNETE Motorola Telespazio Argentina Velconet Comsat Tarim Oil Entel Globalnet CNTV
  • 32.
    ViaSat Proprietary Two LinkStarS2AHub Choices High Capacity MX Series Hub Up to 8,000 remotes per region Up to 80,000 remotes per hub Choice of maximum downstream rates Lower Cost C-Series Hub C-250 supports up to 250 sites C-500 supports up to 500 sites 10 Mbps maximum outbound rate Field upgradeable to LinkStar MX Hub Same rich features as LinkStar MX Hub
  • 33.
    ViaSat Proprietary DVB-S2 Technologyfor Highest Downstream Efficiency LinkStarS2A with DVB-S2 typically uses 30-40% less satellite bandwidth than DVB-S: LDPC Coding eliminates 8% Reed Solomon overhead. 1.2 carrier spacing uses 11% less bandwidth than 1.35 Includes QPSK, 8PSK, & 16APSK waveforms LinkStarS2 is field proven in more than 40 networks worldwide
  • 34.
    ViaSat Proprietary LinkStarS2 “DLA”Technology for Highest Upstream Efficiency LinkStarS2 “DLA” – Dynamic Link Adaptation eliminates wasted satellite capacity for rain margin Upstream carrier operates at most bandwidth efficient symbol rate & coding during clear sky Rain faded sites automatically undergo two dimensional rain compensation 1. Automatic change to more robust FEC (e.g. 6/7 to 2/3) 2. Automatic change to lower symbol rate Reduces upstream satellite bandwidth by up to 18% Carrier Frequency Spectrum with DLA -20 -15 -10 -5 0 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Transponder Frequency (MHz) Carrier Frequency Spectrum without DLA -20 -15 -10 -5 0 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Transponder Frequency (MHz) 16 MHz Qty 20 x 625 ksps FEC = 2/3 carriers 13.2 MHz Qty 16 x 625 ksps FEC = 6/7 carriers + qty 1 x 312 ksps carrier for fade mitigation
  • 35.
    ViaSat Proprietary Bandwidth EfficientUpstream Access Schemes Optimize Satellite Bandwidth Usage Committed Information Rate (CIR) Provides guaranteed bandwidth Bandwidth on Demand (BOD) Reduces bandwidth usage by allocating bandwidth only when needed from common pool Carrier Load Balancing - Dynamically balances the load among all inbound carriers based on traffic activity for efficient bandwidth utilization Slotted Aloha Fast response time for bursty traffic Efficient for narrowband/transactional traffic CIR Reallocation Provides guaranteed bandwidth when needed Bandwidth available to common (BOD) pool when not needed Optimized satellite bandwidth usage = reduced OPEX costs
  • 36.
    ViaSat Proprietary Efficient AccessSchemes (con’t) Multi-channel Traffic Burst Improves efficiency by dynamically allocating one big burst instead of multiple small bursts for large data rate requirement Multi-frame Traffic Burst Allocates available bandwidth to larger quantities of remote terminals Multi-frame CIR Ensures guaranteed bandwidth for larger quantities of remotes for narrowband applications Application Triggered BoD Enables broadband access to the hub without compromising transactional traffic Triggers immediate high speed BoD channel based on customer specified parameters Application Triggered CIR Similar scheme as Application Triggered BoD, but assigns CIR channel Ideal for voice and videoconferencing applications
  • 37.
    ViaSat Proprietary Quality ofService Site Level QoS Prioritizes IP and satellite resources within the RCST Mandatory for time sensitive applications like voice over IP (VoIP) and videoconferencing Sets priority with Diffserv based 6 classes of service Honors priority from other devices via TOS byte Network Wide QoS Prioritizes upstream satellite bandwidth by site • Ideal for military applications Prioritizes upstream satellite bandwith by application • Ideal for voice services Three levels of prioritization
  • 38.
    ViaSat Proprietary Receive OnlyLinkStar Feature Highlights DVB-S2 CCM, VCM optional 5 to 36Msym/s, other rates optional Up to 50 Mbps IP Throughput Unicast or Multicast IP Addressing Optional AES IP Data Encryption Easy upgrade to 2-Way operation Applications Digital Media Downloads Digital Cinema Stock Tickers LinkStar
  • 39.
  • 40.
    ViaSat Proprietary Why AcceleNet®? Best Internet Navigation Experience Multiply your Speed in Half the Bandwidth
  • 41.
    ViaSat Proprietary Solving Network PerformanceChallenges Compression Dramatically reduce bytes uploaded and downloaded to increase effective bandwidth available Round-trip reduction Reduce the round-trips required to complete transactions to dramatically improve perceived application performance Optimized Transport Replace TCP with a transport that performs optimally over problematic links, reduces retransmissions and increases network utilization
  • 42.
    ViaSat Proprietary Benefits ofTransport Optimization With Compression Without AcceleNet With AcceleNet ITP With AcceleNet ITP + AcceleNet Compression *results based on third party testing 50-75% bandwidth reduction Transport Optimization
  • 43.
    ViaSat Proprietary Optimized ApplicationPerformance HTTP Servers Enterprise Email Servers AcceleNet improves effective Bandwidth, network utilization, and measured performance • Fewer bytes transferred • Single Round Trip • Minimal Retransmissions • Optimal use of network Server Client
  • 44.
    ViaSat Proprietary AcceleNet Architecture T1,DSL, satellite, dial, cellular Radius authentication TCP data encryption No open listening ports Desktops, laptops, PDAs, Smartphones
  • 45.
    ViaSat Proprietary HTTP Acceleration Benefits:90% reduction in number of round trips AcceleNet Proprietary HTTP proxy models the browser cache to avoid downloading cached objects. Software solution provides significantly more object buffering than possible on any modem. Greater bandwidth savings and faster performance than any modem- or client-based solution on the market today. Uniquely pre-fetches ALL objects in a single request, including dynamically-generated URLs; industry’s highest pre-fetch ratios are achieved.
  • 46.
    ViaSat Proprietary Data Reduction-Compression 75%average bandwidth savings in both directions Patented and custom modules compress HTML and other web-specific objects Large Browser History with multiplexed connection history sharing Large history buffers shared across all TCP connections in a session. Variable image and multimedia compression Further compression and content filtering of images (.jpg, .gif, .bmp, .png, etc.) and multimedia files (.swf) providing even greater bandwidth savings. Dynamic Compression Engine Selection ‘on the fly’ to determine appropriate compression techniques. Browser cache verification Guarantees that cache is never stale; maintains most current content. AcceleNet replaces TCP with proprietary more efficient ITP (Intelligent Transport Protocol) protocol; header compression can save some bandwidth but AcceleNet has completely eliminated this problem.
  • 47.
    ViaSat Proprietary Transport Optimization Benefits:8x greater throughput Bi-directional flow control ITP maximizes link utilization by measuring the characteristics of the connection and automatically adjusting the data flow; greatly outperforming basic techniques like TCP and connection establishment spoofing which provide limited benefit. ITP maintains over 95% bandwidth efficiency with packet loss up to 3% while TCP based connections bandwidth efficiency drops to less than 35%.Packet-based accountingBetter packet-loss handling; outperforms stream-based techniques. Multiplexed TCP connections; Uniquely optimizes the link over multiple TCP connections instead of each TCP connection, providing much greater performance especially for web browsing, which uses multiple TCP sessions per site. Application-aware optimization; Improves bandwidth efficiency with advanced retransmission decisions based on type of request; e.g., HTTP GET request vs. dropped packet in a file transfer. ACK reduction; Improves bandwidth efficiency; acknowledges 64 packets in a single ACK.
  • 48.
    ViaSat Proprietary AcceleNet BandwidthReduction with typical Brazilian web sites Upstream Bytes Downstream Bytes Websites Un- accelerated AcceleNet (Perfect Quality) AcceleNet (Fair Quality) Un- accelerated AcceleNet (Perfect Quality) AcceleNet (Fair Quality) http://www.uol.com.br 55K 18K 14K 313K 281K 163K http://www.terra.com.br 82K 19K 20K 415K 295K 158K http://www.folha.uol.com.br 72K 29K 14K 527K 353K 159K http://br.yahoo.com 28K 9K 7K 227K 111K 70K http://www.globo.com 27K 11K 8K 247K 186K 84K http://www.bradesco.com.br 38K 8K 8K 252K 176K 83K http://www.bondfaro.com.br 39K 16K 14K 247K 226K 172K http://www.pop.com.br 24K 9K 8K 191K 165K 59K http://www.omelete.com.br 65K 18K 16K 491K 287K 202K Total (bytes) 434K 137K 109K 2,910K 2,080K 1,150K Compression Ratio 3.2 4.0 1.4 2.5 % bandwidth saved 69% 75% 29% 60%
  • 49.
    ViaSat Proprietary Leaders WhoTrust AcceleNet OEMs ISPs Enterprises $20B auditing, accounting and tax services firm 900+ location fast food restaurant
  • 50.
    ViaSat Proprietary Scaleable, Field-Hardened Technology 2million+ AcceleNet clients via MSN9 18 months flawless operation Extensive client logs gathered every day by MSN Five 9’s AcceleNet server availability at MSN 200+ servers
  • 51.
    ViaSat Proprietary LinkWay/LinkStar Hybrid FullMesh-Star Topologies LinkWay 2100 LinkWay S2 LinkWayS2 LinkWay originally designed in 1996, is industry leader in Full Mesh Networks Both commercial and military field proven (8th generation full mesh MF- TDMA platform) What’s new? LinkWayS2 adds DVB-S2 receiver – enables hybrid network
  • 52.
    ViaSat Proprietary Hybrid Starand Mesh network LWS2 LWS2 LWS2 Mesh node with LinkWayS2 modem Teleport/ Step Site DVB (DVB-S2) Star Modulator LAN LWS2 MF-TDMA MF-TDMA TDM (DVB-S2) outbound carrier MF-TDMA MF-TDMA
  • 53.
    ViaSat Proprietary Enhanced BandwidthEfficient Modem (MD-1366/U and MD-1366A/U) Standardized Access to the GIG!
  • 54.
    ViaSat Proprietary EBEM- Industry’sfirst and only have it all modem Advanced Modulations and Turbo Codes BPSK, QPSK, OQPSK, 8-PSK, 16-APSK Turbo R=1/2, 2/3, 3/4, 7/8, 19/20 64 kbps 155 Mbps, 32 ksps 60 Msps AES-256 Scramble Automatic Transmit Power Control Seamless Antenna Handover Capability ACM (Adaptive coding and modulation) Interoperability for Various Modems on Market 1U Packaging
  • 55.
    ViaSat Proprietary MD-1366 PerformanceAdvantages Best-In-Class Power & Bandwidth Efficiency 165B for Best Performance 165A/IESS for Interoperability Modulation Code Rate Bits/ sec/Hz Spec Eb/No 16-APSK Turbo 19/20 3.17 10.90 16-APSK Turbo 7/8 2.92 8.90 16-APSK Turbo 3/4 2.50 7.75 16-APSK Turbo 2/3 2.22 6.75 8-PSK Turbo 3/4 1.88 6.55 16-APSK Turbo 1/2 1.67 5.00 QPSK Turbo 7/8 1.46 4.70 QPSK Turbo 3/4 1.25 3.90 QPSK Turbo 2/3 1.11 3.20 QPSK Turbo 1/2 0.83 2.30 BPSK Turbo 1/2 0.42 2.15 Modulation Code Rate Bits/ sec/Hz Spec Eb/No 8-PSK TCM 2/3 1.67 10.20 8-PSK TCM 2/3 +RS 1.53 6.10 QPSK R=3/4 + RS 1.15 5.40 QPSK R=1/2 + RS 0.76 4.10 MD-1366 Turbo Coded Modes Outperform Turbo Product Codes Conform to new Standard ‘165B The most optimal mod/code points: supports any link budget or satellite MD-1366 Interoperable Modes Optimized performance OM-73, ‘165/165A, Intelsat BPSK to 8-PSK, R=1/2 to 7/8 Reed-Solomon outer codes Most Efficient Bits per Hertz (Sweet Spot 4.5 – 8 Eb/No)
  • 56.
    ViaSat Proprietary Maximize Throughputwith ACM Converts Link Margin to Data Rate Margin Other modems: add link margin to maintain low data rate MD-1366 w/ ACM: get a higher rate 99% the time Hitless Adaptation of Modulation and Coding As link conditions change, with no interruption in data Maintaining constant symbol rate and power level MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 31.55 Mbps ITA using 16-APSK 7/8 MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 23.98 Mbps ITA using 16-APSK 2/3 MD-1366 ITA Mode @ 9 Msps -70 -60 -50 -40 -30 -20 -10 0 10 -2.0 -1.0 0.0 1.0 2.0 Frequency (wrt Rsym) dBc 13.50 Mbps ITA using QPSK 3/4
  • 57.
    ViaSat Proprietary PCMA-Paired CarrierMultiple Access (Bandwidth optimizer)
  • 58.
    ViaSat Proprietary Patented ViaSatPCMA technology allows 2 different satellite signals to operate on the same frequency Signal cancellation = BW savings Frequency f1 f2 W Hz W Hz Before Frequency f1 & f2 W Hz After Bandwidth savings can be as much as 50% !! Applicable to any modulation / FEC technique
  • 59.
    ViaSat Proprietary PCMA –How It Works Overlapping uplink signal is subtracted to get desired downlink signal Terminal1 Uplink Terminal2 Uplink Downlink = Terminal1 + Terminal2 - - Rx Terminal2 Rx Terminal1
  • 60.
    ViaSat Proprietary Gateway DownlinkView VSAT Downlink View Gateway transmits Uplink signalGateway transmits Uplink signal Gateway cancels its received signalGateway cancels its received signal Subscriber Terminal transmits a return linkSubscriber Terminal transmits a return link Return link power too low to interfere with Outbound Return link above residual of cancelled Outbound Uplink Gateway receives inbound return links fromGateway receives inbound return links from VSATsVSATs Hub Canceller (Asymmetric PCMA)
  • 61.
    ViaSat Proprietary PCMA ProductOverview Compatible with existing modem technology Modulation: BPSK, QPSK, 8-PSK, 16-APSK, 16-QAM FEC: Sequential, Viterbi, Reed-Solomon & Turbo product codes Interfaces at IF between modem & RF chain Easy add-on with plug-n-play installation Operates at hub site and remote end-user locations Broadband operation 1 MHz to 36 MHz cancellation Easy “no-brainer” purchase decision ROI payoff between 2 to 6 months Product available in 10Mhz, 20Mhz, 36Mhz
  • 62.
    ViaSat Proprietary More ProductDetails Key attributes Cancellation BW: 1 MHz to 36 MHz 70 MHz IF (52 to 88 MHz), supports C or Ku-band systems 25 dB min forward carrier signal cancellation Compact (1 RU 19 inch rack mount) Front panel and remote control (Ethernet) interface Redundancy switch configurations (1:1 and 1:8) Broad product compatibility and Modem Agnostic Comtech/EF Data Radyne/ComStream Paradise Others Optimize your Future and legacy links today!
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    ViaSat Proprietary Operational Considerations Linkrequirements Full-duplex circuits only (symmetric or asymmetric) Must be able to receive your own uplink signal (doesn’t work with cross-strap transponders) Implementation considerations Power is slightly increased over standard frequency pair approach (0.15 to 0.5 dB depending on near/far ratio) May need to change existing coding rates and modulation to take advantage of bandwidth reduction • Link budget analysis will determine link configuration and estimated overall savings of power and bandwidth with PCMA New services can be designed to maximize savings (e.g., optimal antenna size) Products DAMA – StarWire • 64 kbps - 2 Mbps SCPC modem integrated into network Hub Canceller • Hub-Spoke – ArcLight (Broadband, Gov. programs) • High-speed trunking Point-to-point
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    ViaSat Proprietary Asymmetric PCMAin a DVBS/S2/TDMA Network
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    ViaSat Proprietary Symmetric PCMAin a SCPC Point to Point
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    ViaSat Proprietary Ethernet ArcLight MobileBroadband System Ku-Band Satellite Return Channel Receiver Subsystem Hub Antenna Forward Channel Modulator Return Link: 32 - 1024 kbps To Cabin LAN Internet Small Mobile Antenna Router Network Operations Center 512k – 30 Mbps Forward Link Hub Canceller Broadband Ku-band Satellite Transceiver
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    ViaSat Proprietary Large BusinessJet Product ViaSat designed, developed and operates the SKYLink broadband satellite system Integrated satellite terminals for aircraft (multiple STCs) Ground earth stations Satellite network operator Antenna Size = 11.5” Total Weight = 32 lbs Prime Power < 200 Watts Equipment and service sold by as “SKYLink” > 60 Aircraft Flying Today!!
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    ViaSat Proprietary Similar experienceto DSL or cable modem 10+ Mbps shore-to-ship 384 Kbps ship-to-shore 60 cm diameter antenna < 60 lbs system weight On-board connectivity options WiFi VoIP Cellular Future terminals 18” and 14” North America, Caribbean and European coverage today Antenna Modem Cellular Internet Voice NOC / Earth Station High speed connectivity to yachts and ships at sea Mini-VSAT Maritime Product 300 Systems on Order!!
  • 71.
    ViaSat Proprietary Ship Terminal Larger1m antenna for expanded ocean coverage Significant market Cellular Internet Voice Melco Antenna ViaSat Modem / System
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    ViaSat Proprietary ViaSat VehicularTerminal Two-way broadband for government and enterprise vehicular applications 10+ Mbps to the vehicle 512 kbps from the vehicle Low Profile Antenna VMT-1501 Modem Roof-rack installation Vehicle pwr operation Outage mitigation features Web browsing, e-mail, VPN, file transfer, VoIP
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    ViaSat Proprietary Train Products ViaSatproviding broadband to high speed trains in Europe Part of team with Eutelsat, France Telecom and Alstom Successful proof-of-concept demo conducted late 2006 Five train service trial starting November 2007 Fifty seven train initial service starting 2008
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    ViaSat Proprietary ACSM WaveformExample Coverage Footprint Modem RX Modem RX Modem RX Small Antenna Med Antenna Large Antenna Trash = Frame cannot be decoded - discarded • The Most Disadvantaged Terminal Can Receive Only Low Data Rate Frames • Most Advantaged Terminal Receives All FL Frames • Forward Link Receiver Filters Packets Addressed To Each Terminal F R 1/3 Data F R 1/2 Data F R 3/4 Data F R 1/3 Data F R 1/3 Data F Trash F Trash F R 1/3 Data F R 1/3 Data F R 1/2 Data F Trash F R 1/3 Data F R 1/3 Data F R 1/2 Data F R 3/4 Data F R 1/3 Data
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    ViaSat Proprietary One forall Mobile Broadband Application
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