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Sumanth Joglekar is seeking a challenging career in wireless technology. He has 3.6 years of experience as a Software Engineer developing GSM protocol stacks using C/C++ on Linux. His experience includes implementing features like 2G-3G handover, host standby redundancy, and local switching between BTS clusters to optimize voice traffic routing. He is currently working as a Software Engineer at Vihaan Networks on projects like developing TCP/IP interfaces for cell broadcast between BSC and CBC.
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PPP(Point-to-Point Protocol): Components & Characteristics
Point-to-Point Protocol is data link layer protocol used to establish a direct connection between two nodes via a WAN or LAN Along with is Components and Characteristics
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The document discusses Point-to-Point Protocol (PPP) and its roles in both wired and wireless internet access. PPP is used to establish and configure connections between two nodes and encapsulate network layer protocol packets for transmission over serial links. It consists of a Link Control Protocol (LCP) for link configuration and establishment and Network Control Protocols (NCPs) like IPCP for network layer configuration. The document examines how PPP is used for dial-up connections, WAP over CSD and GPRS, and using mobile phones as modems through PPP dial-in. Protocol analysis of an MMS transmission over HTTP, TCP, IP and PPP over CSD is also presented.
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IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Point to-point-protocol
This document provides an overview of Point-to-Point Protocol (PPP) including how it is used to encapsulate TCP/IP and other network layer protocols over dial-up connections. PPP uses the Link Control Protocol (LCP) to establish and configure connections, and the Network Control Protocol (NCP) to establish specific network layer protocols. The document discusses how to configure PPP encapsulation on an interface and assign IP addresses to remote users. It also covers PPP authentication using PAP and CHAP as well as other PPP features negotiated by LCP such as compression and Multilink PPP.
Chapter 2 point-to-point protocol (ppp)
The document describes the Point-to-Point Protocol (PPP) and its use in establishing serial connections over WAN links. It discusses PPP concepts like its layered architecture, frame structure, session establishment process, and support for multiple network layer protocols. The document also covers configuring PPP encapsulation on serial interfaces, verifying the PPP connection, troubleshooting encapsulation issues, and configuring PPP authentication using PAP and CHAP protocols.
Chapter2 ppp
The document discusses point-to-point protocol (PPP) which is used to establish serial connections over WAN links. PPP provides authentication, compression and multiplexing. It describes PPP encapsulation, link establishment in multiple phases, and configuration of authentication using PAP or CHAP. PPP is configured on Cisco router serial interfaces to connect to other devices over WAN links.
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PPP(Point-to-Point Protocol): Components & Characteristics
Point-to-Point Protocol is data link layer protocol used to establish a direct connection between two nodes via a WAN or LAN Along with is Components and Characteristics
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The document discusses Point-to-Point Protocol (PPP) and its roles in both wired and wireless internet access. PPP is used to establish and configure connections between two nodes and encapsulate network layer protocol packets for transmission over serial links. It consists of a Link Control Protocol (LCP) for link configuration and establishment and Network Control Protocols (NCPs) like IPCP for network layer configuration. The document examines how PPP is used for dial-up connections, WAP over CSD and GPRS, and using mobile phones as modems through PPP dial-in. Protocol analysis of an MMS transmission over HTTP, TCP, IP and PPP over CSD is also presented.
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This document discusses various approaches to improving TCP performance over mobile networks. It describes Indirect TCP, Snooping TCP, Mobile TCP, optimizations like fast retransmit/recovery and transmission freezing, and transaction-oriented TCP. Each approach is summarized in terms of its key mechanisms, advantages, and disadvantages. Overall, the document evaluates different ways TCP has been adapted to better support mobility and address challenges like frequent disconnections, packet losses during handovers, and high bit error rates over wireless links.
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The document discusses point-to-point protocol (PPP) which is used to establish serial connections over WAN links. PPP provides authentication, compression and multiplexing. It describes PPP encapsulation, link establishment in multiple phases, and configuration of authentication using PAP or CHAP. PPP is configured on Cisco router serial interfaces to connect to other devices over WAN links.
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Proxy Mobile IPv6 (PMIPv6) allows mobility scenarios for non-MIP aware mobile nodes.
A proxy assumes all functionality required for mobile nodes to roam from
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Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
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suffers from significant losses due to high bit errors and mobile handoff. TCP responds to all losses by
invoking congestion control and avoidance algorithms, resulting in degraded end-to-end performance. This
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a novel radio network capacity planning tool for GSM, GPRS, EDGE, UMTS, HSDPA, HSPA, LTE. Based on advanced Erlang laws. Takes counters as input. Provide accuracy estimates. Simple and natural work environment. Ideal for radio network budget forecast and for productive day-to-day capacity management.
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This document discusses Point-to-Point Protocol (PPP), which establishes a direct connection between two nodes over various physical link layers. PPP has several layers and frame types to negotiate options, authenticate users, and encapsulate network layer protocols like IP. It can also bundle multiple physical links together through Multilink PPP for increased bandwidth.
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Overview of Proxy Mobile IP for IPv6 mobility.
Mobile IP (MIP) allows mobile nodes to roam between networks while
keeping existing connections open thus allowing seamless operation
on application level.
However, Mobile IP requires additions to the OS kernel that make deployments
difficult if not impossible alltogether.
Proxy Mobile IPv6 (PMIPv6) allows mobility scenarios for non-MIP aware mobile nodes.
A proxy assumes all functionality required for mobile nodes to roam from
one wireless network to another. PMIPv6 achieves this with a Mobile Access Gateway
(MAG, the proxy) and a Local Mobility Anchor (LMA) that represents the single point of attachment
for corresponding nodes.
PMIPv6 is most suited for campus-type networks where all wireless networks are under
the control of a single authority.
Mobile Network Layer
Mobile Network Layer protocols and mechanisms allow nodes to change their point of attachment to different networks while maintaining ongoing communication. Key concepts include:
- Mobile IP adds mobility support to IP, allowing nodes to use the same IP address even when changing networks. It relies on home agents and care-of addresses.
- Registration allows mobile nodes to inform their home agent of their current location when visiting foreign networks. Tunneling and encapsulation techniques are used to forward packets to mobile nodes' current locations.
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EMERSON EDUARDO RODRIGUES huawei-gsm-bss-kpi-analysis
Engineer EMERSON EDUARDO RODRIGUES PRESENTA UNA NUEVA VERSION
THERE ONE NEW ONE PRESENTATION FOR 2G AND 3G ENGINEERING FOR LTE AND PSCORE ENGINEER
ITS VERY SUITABLE FOR YOUR RESEARCH AT ALL LEVELS OF RF ENGINEERING AND PS CS
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This document provides instructions for calculating key performance indicators (KPIs) for an LTE network using TEMS Discovery software. It describes how to import log files from the drive test team, validate the data, and calculate KPIs such as download/upload throughput, ping latency, handover success rate, session drop rate, bearer setup time, and ERAB setup time. The process involves filtering the data, exporting results to Excel, and using a KPI tool to analyze signaling messages and determine values like setup times and drop rates. In summary, it outlines the steps for auditing field measurement data and accurately measuring important LTE network performance metrics.
Telecom ppt
The document provides information about telecommunication training. It defines telecommunications as the transmission of information over distances through electronic means. It notes that India has over 920 million telecom subscribers. It outlines some of the job roles in the telecom industry such as network planning, deployment, operations and maintenance, and equipment testing. It states that the training will prepare candidates for these types of roles by providing them with practical skills in areas like 5G, 4G, RF design, and optimization.
Transport Layer
The document provides an overview of several transport layer protocols and concepts:
- TCP is a connection-oriented protocol that provides reliable, ordered delivery through the use of acknowledgments, flow control, and error control. UDP is a simpler connectionless protocol.
- Sockets provide an interface between applications and the network, allowing applications to build distributed client-server systems.
- Congestion control is important to prevent network congestion and ensure fair resource sharing between flows. TCP uses end-to-end congestion control while some protocols use network feedback.
- RTP and RTCP are used for real-time media delivery over UDP, providing sequencing, timing information, and quality monitoring without guarantees.
- SCT
AN EXPLICIT LOSS AND HANDOFF NOTIFICATION SCHEME IN TCP FOR CELLULAR MOBILE S...
With the proliferation of mobile and wireless computing devices, the demand for continuous network connectivity exits for various wired-and-wireless integrated networks. Since Transmission Control Protocol (TCP) is the standard network protocol for communication on the Interne, any wireless network with Internet service need to be compatible with TCP. TCP is tuned to perform well in traditional wired
networks, where packet losses occur mostly because of congestion. However cellular wireless network
suffers from significant losses due to high bit errors and mobile handoff. TCP responds to all losses by
invoking congestion control and avoidance algorithms, resulting in degraded end-to-end performance. This
paper presents an improved Explicit Loss Notification algorithm to distinguish between packet loss due to congestion and packet loss due to wireless errors and handoffs. Simulation results show that the proposed protocol significantly improves the performance of TCP over cellular wireless network in terms of throughput and congestion window dynamics.
Mobile network layer (mobile comm.)
Mobile IP allows mobile nodes to change their point of attachment between IP networks while maintaining ongoing connections. It defines entities like mobile nodes, home agents, and foreign agents to facilitate IP packet delivery to the mobile node's current location. The key operations in Mobile IP are agent discovery, registration of the mobile node's new location with its home agent, and tunneling of packets from the home agent to the foreign agent or mobile node's care-of address.
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Bluetooth
Bluetooth is a short-range wireless technology that was originally intended to replace cables connecting portable electronic devices. It allows for the creation of personal area networks within a range of about 10 meters. Bluetooth devices can connect and communicate with each other through a wireless protocol that uses frequency hopping to avoid interference. Popular applications of Bluetooth include wireless headphones, wireless speakers, and connecting mobile devices to keyboards and mice.
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PPP is a protocol for point-to-point connections that defines how two devices can establish a link and exchange data. It uses byte stuffing to allow data transparency and defines the format of frames exchanged. PPP uses three protocols - LCP for link establishment and termination, authentication protocols like PAP and CHAP for verifying identities, and NCP like IPCP to encapsulate network layer data for transmission.
C10 transport protocols
The document discusses various approaches to improving TCP performance over mobile networks. Indirect TCP splits the TCP connection at the foreign agent to isolate the wireless link. Snooping TCP has the foreign agent buffer packets and retransmit lost packets locally. Mobile TCP uses a supervisory host to monitor connections and choke the sender window during disconnections. Other techniques discussed include fast retransmit/recovery after handovers, freezing TCP states during interruptions, selective retransmission of only lost packets, and transaction-oriented TCP to reduce overhead of short messages. Each approach has advantages but also disadvantages related to compatibility, transparency, and complexity.
Mobile transport layer
The document discusses various approaches to modifying TCP for use in mobile networks. Indirect TCP splits the TCP connection at the foreign agent, keeping the fixed network unchanged but losing end-to-end semantics. Snooping TCP has the foreign agent snoop packets and retransmit lost packets locally without changing TCP. Mobile TCP uses a supervisory host to monitor disconnections and choke senders. Other approaches include forced fast retransmit after handovers, freezing TCP timers during disconnects, selective retransmission of only lost packets, and transaction-oriented TCP to combine connection setup in fewer packets. Each approach has advantages like efficiency or compatibility but also disadvantages like overhead or non-transparency.
encrption.PDF
This document analyzes the RC4 encryption algorithm and examines how its performance is affected by changing parameters like encryption key length and file size. Experimental tests were conducted to measure encryption time for different key lengths and file types. The results show encryption time increases with longer keys and larger files, and are modeled mathematically. The document also provides background on encryption methods, how RC4 works, and compares stream and block ciphers.
Wcdma Radio Network Planning And Optimization
The document discusses WCDMA radio network planning and optimization, including key topics such as:
1) Fundamentals of WCDMA link budget analysis and radio interface protocol architecture.
2) Radio resource utilization techniques like power control, handover control, and congestion control.
3) Issues of coverage and capacity planning as well as enhancement methods.
4) The process of WCDMA radio network planning including dimensioning, detailed planning, and optimization aspects to address interference.
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- 1. SUMANTH JOGLEKAR Gurgaon email ID: sumanth4u053@gmail.com Contact No: +91-9958512181 Seeking a challenging career in the field of wireless technology in a reputed organization that provides opportunities to utilize my skills and grow professionally along with the organization. A Software Engineer with 3.6 years of experience in GSM protocol stack development with good understanding of Linux internals, C, Data Structure and Networking, with exposure to the complete Software Development Life Cycle. • Hands on Experience in Feature development, Integration and maintenance of gsm/gprs Protocol stack. • Implemented RRC connection procedures. • Experience in drive testing on call performance in the real networks. • Good understanding of GSM/GPRS Network and Bearer architecture, callflows and 3GPP - Specifications. • Demonstrated Voice Over gsm/gprs call setup. • Excellent Team Player and good knowledge seeker. • Good experience in debugging, bug fixing and unit testing. Currently Associated with Vihaan networks limited (gurgoan) - Position: software Engineer - Duration: From APRIL-2013 till present. CAREER OBJECTIVE WORK EXPERIENCE HIGHLIGHTS EMPLOYMENT DETAILS
- 2. Wireless Technologies GSM Protocols and Standards GSM – NAS, RRC, RLC, L2 - L3 interface API. Signaling Protocols – Rtp/Rtsp TCP/IP, IPv4 Programming Languages C,C++ Operating System Linux, Windows Tools GNU Make, GCC, CVS, SVN, cscope, ctags, Wireshark. Debuggers GDB, tcpdump Profiling Tools Valgrind, gprof Platforms Monta Vista Other IPC ,Sockets ,Makefiles ,OS concepts and Data Structures ,Threads. Degree University Year of Passing Percentage BE (CSE) VTU 2010 58 1 2G-3G Handover Feature Introduction : This feature deals with the handover of CS calls from 2G to 3G cells Based on Radio conditions and received energy parameters when 3G cells are added as neighbors of 2G cell. Role : - Implemented messages for handover procedures according to 3GPP(44.018). - Implemented State Machines and timers for Inter system to Utran HO cmd. - Handled measurement information and measurement Report of UE . TECHNICAL SKILLS QUALIFICATION PROJECT PROFILE
- 3. Environment : Linux Duration : Jun 2013 to Feb 2014 2 Host Standby Feature Introduction : The project is to develop BSC feature to provide 1:1 redundancy such that the matured and ongoing calls will not be dropped when the active card goes down and standby card takes over the responsibility for active card. Role : - Implementation and enhancement of software as per customer requirement. - Replicate the l2-l3 signalling information - Support and Bug Fixing. - Lab setup and Demonstration. Environment : Linux Duration : Mar 2014 to Dec 2014 3 Local Switching Feature (BSC-END) Introduction : The project was to develop BSC feature to switch calls locally when they lie in a BTS cluster Group. Voice Packets will be directed to each other BTS rather than DSP(MSC). Abis Path is optimized to carry only signalling towards BSC/MSC rather than Voice Traffic. Role : - GCR context is Implemented in order to maintain LCLS data . - Implemented new RSL message MODE_MODIFY_REQ between Abis interface to synchronize with BTS. - Handled critical issues, enhancements requirements involved in L2/L3 testing.
- 4. Environment : Linux Duration : Jan 2015 – Sep 2015 4 External Cell-Broadcast Tcp-Ip Interface Introduction : This feature is to implement a Cell Broadcast Interface between BSC and CBC/OMC is a TCP/IP based Interface as per 3gpp specification,BSC acts as a client and try connecting with CBC (Server). Role : - Implemented tcp-ip interface between bsc and cbs using 3gpp document. - L3 message flow between BSC and CBS, - Prepare and send Response to CB Server and bsc for different SMS broadcast related scenarios. Environment : Host System: Linux Target System: PowerPC Duration : Oct 2015 – Feb 2016 I hereby declare that all the above mentioned information is correct to my knowledge and I bear the responsibility for the correctness of the above mentioned particulars. SUMANTH JOGLEKAR DECLARATION