Presentación de Esteban Almirón, de Logicalis Southern Cone, en las jornadas tecnológicas de Viedma. Noviembre de 2012.

1. Jornadas de actualización
tecnológica en Viedma
Noviembre 2012
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2. Outdoor Mesh
Wireless Networks
Esteban Almirón
esteban.almiron@la.logicalis.com
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3. Agenda
1. Situación actual y tendencias
2. ¿Qué es Outdoor Wireless?
3. Arquitectura de la solución Outdoor Wireless Mesh
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4. 4

5. Esto es normal?
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6. El tráfico de datos móvil se duplica cada año
El 70% es tráfico de video
Fuente: Cisco Visual Networking Index (VNI) Global Mobile Data Forecast, 2011–2016
http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/
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white_paper_c11-520862.html

7. Celdas pequeñas permiten mejorar la capacidad
26x
Growth
Macro 2G/3G/4G
1000
Macro
Capacity
Growth
100
Spectrum
10
1
Consumer
1990 1995 2000 2005 2010 2015
Business Community
Source: Agilent
Wi-Fi complements 3/4G Networks
Para satisfacer la demanda de Internet móvil, en el futuro próximo
las redes deberán integrarse con arquitecturas de celdas pequeñas
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8. Outdoor Wireless
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9. Qué entendemos por Oudoor Wireless?
Dispositivos de Tecnologías de Broadband
usuario WiFi, HSxPA, HiperLan
MaNet, LTE…
¿Qué es
outdoor
Movilidad wireless? Aplicaciones
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10. Qué entendemos por Oudoor Wireless?
Municipalidades Service Provider Empresas Transporte
Ciudad Digital Opción de última Extensión de la Operaciones
Aplicaciones milla cobertura indoor ferroviarias
Municipales
(CCTV, estacionamiento, 3G Offload (Univeridades, Serguridad
sensotes) Industria y Logística,
Servicios de valor etc) Servicio al cliente
Comunidad agregado
Conectada
10 Redes WiFi Outdoor como Plataforma

11. Beneficios – WiFi Outdoor
Bajo costo Estándar
 Interoperabilidad entre
 Espectro no licenciado dispositivos y CPEs.
 Gran cantidad de proveedores  Vigente en el mercado (ej.
 Disponibilidad de clientes Seguridad)
 Global. Mismas frecuencias
¿Por qué para todos.
WiFi
Tecnología Madura Outdoors? Escalable & Fácil de usar
 Puede mitigar interferencias  Solo agregar nodos
 Amplio espectro no  Bajo impacto en nuevos sitios
licenciado (> 300 MHz)  Extensión outdoor de las
 Puede ofrecer ancho de wireless LAN clásicas.
banda en cualquier lugar
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12. Arquitectura Outdoor
Wireless Mesh
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13. Cisco Outdoor Mesh architecture overview
2.4 GHz Access
L3/L2 switch RAP MAP
(Root AP) Backhaul 5GHz (Mesh AP) L2 switch
Controller 5 GHz Access
Backhaul 5GHz
WGB
Wired access
MAP
5 GHz Access
Mesh Deployment Flexibility:
 LAN-to-LAN connectivity
 Multiple hop backhaul
 2.4 GHz and 5GHz wireless client access
 Ethernet Access to wired clients
 LAN-to-LAN in motion with Work Group Bridge (WGB)
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14. Cisco Outdoor Mesh architecture overview
Autoconfiguración y autoadaptación
 Optimal parent selection selects the Neighbor
RAP Controller
path “ease” across each available
Parent
backhaul
MAP
 Ease based on number of hops and link
SNR (Signal Noise Ratio)
 AWPP uses a “Parent Stickiness” value to
mitigate Route Flaps
 AWPP integrates 802.11h DFS (Dynamic
Frequency Selection) for radar detection
and avoidance
 From release 7.0.116 preferred parent
can be configured
Adaptive Wireless Path Protocol (AWPP)
Establece el mejor camino hacia Root
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15. Componentes de la Arquitectura Wireless Outdoor de Cisco
• Access Points:
Context Aware  802.11abgn
Advanced  CleanAIr, ClientLink, etc.
Wireless IPS
 Outdoor enclosure, AC/DC power; PoE
CleanAIr – Spectrum capable. Battery backup
Intelligence
WLAN Controller
(WLC)
 POE port for peripheral devices
NetworkControl System (NCS) • Wireless LAN Controller (WLC):
Indoor Hotspot
 Handles RF algorithms and optimization
Root AP IP
(RAP) Backhaul  Seamless WiFi L3 mobility
 Provides security at each Layer
Mobility Service Engine (MSE)  Image and configuration Management
Mesh • Prime NCS
Metro Wi-Fi
Network
Mesht AP  Network-wide policy configuration and
(MAP) device management
 Design and deployment tools
 Monitoring and troubleshooting
• Mobility Service Engine (MSE)
Client  Enables Mobility services (WIPS, Context
Stadium / Large Venue aware)
Residential CPE
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16. APs Cisco Serie 1550
Características Beneficios
• Outdoor 802.11n Access Point • RF Excellence: better coverage,
• Dual-Radio APs (2.4 & 5 GHz) Integrated spectrum intelligence
• CleanAir & ClientLink (beamforming) • Unified Mode: Authentication,
 Dual-band Antennas Security, Mobility,..
• Integrated; Low-Profile • Flexible Deployment: Access or
• Backhaul mesh network, extension of an
 DOCSIS 3.0 / EuroDOCSIS 3.0 Ethernet network, Fiber,
 Fiber Wireless or Cable backhaul
 Ethernet • High Performance: Multipurpose
 Mesh network with low CAPEX & OPEX
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17. Características de 802.11n
Packet Backward
MIMO 40MHz Channels
Aggregation Compatibility
MIMO (Multiple Input, Multiple Output)
With Beam Forming
Transmissions Arrive in Phase,
Increasing Signal Strength
Without Beam Forming
Transmissions Arrive out of
Phase and signal is weaker
Performed by Ensures Signal Increases Works with
Transmitter Received in Receive non-MIMO
(Talk Better) Phase Sensitivity Clients
Beam Forming Maximal Ratio Combining Spatial Multiplexing
17 Beam Forming gives a gain of 4+ dB in DL

18. Características de 802.11n
Packet Backward
MIMO 40MHz Channels
Aggregation Compatibility
MIMO (Multiple Input, Multiple Output)
Without MRC With MRC
Multiple Signals Sent; Multiple Signals Sent and Combined
One Signal Chosen at the Receiver Increasing Fidelity
MIMO AP
Performance
Performed by Combines Increases Works with
Receiver Multiple Received Receive non-MIMO and
(Hear Better) Signals Sensitivity MIMO Clients
Beam Forming Maximal Ratio Combining Spatial Multiplexing
MRC gives a gain of 4.7 dB in UL for all Data Rates
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MRC Gain is added in Rx Sensitivity number

19. Características de 802.11n
Packet Backward
MIMO 40MHz Channels
Aggregation Compatibility
MIMO (Multiple Input, Multiple Output)
Information is Split and Transmitted on Multiple Streams
stream 1
MIMO AP stream 2
Performance
Transmitter and Concurrent Increases Requires MIMO
Receiver Transmission on Bandwidth Client
Participate Same Channel
Beam Forming Maximal Ratio Combining Spatial Multiplexing
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AP1550 has the capability of 2 X 3 MIMO

20. MIMO + Beamforming
Mejoras para todos los clientes
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21. Tecnología CleanAir
Monitoring, Locate Mitigate
NCS, MSE Wireless LAN Controller
POOR GOOD
• Classification processed on
Access Point
Maintain Air Quality
• Interference impact and
data sent to WLC for real-
time action
• NCS and MSE store data for
location, history, and Visualize and
troubleshooting CH 1 CH 11
Troubleshoot
AIR QUALITY PERFORMANCE
Visibility of the
Cisco CleanAir RF Spectrum
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22. CleanAir: Visibilidad de la red
Map – Air Quality View
Zone of Impact
Interferer Details
Context Aware Services enable NCS to show Interferer’s location
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23. Planificación y Diseño
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24. Planificación y Diseño
180 meters (cell radius) at 2.4 Ghz
MAP
RAP
MAP
1 square km, 10 Cells
 Recommendations  Assumptions:
 Consider your weak link (client -  100% coverage needed
smartphone)  APs are at 10 m; client at 1 m height
 AP to AP distance = double AP to client  Data rate of 9 Mbps to estimate range
AP1552C/I: 360 m  Throughput @ client >= 1 Mbps
AP1552E/H: 360 m  LoS or Near LoS
 Flat Terrain Environment
 Decreasing AP to AP improves coverage
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25. Planificación y Diseño
Consideraciones generales
1 km
• In real world scenario you need to take
in consideration obstacles; add more
MAP
APs to have Line of Sight (LOS)
RAP
• At 2.4Ghz MAPs’ distance is given by the
coverage you want for clients
• Client type (smart phones, tablets, etc):
weakest link typically would be the
Uplink on a smart phone
• The number of MAPs per RAP should be
less than 32 but really depends on the
application and bandwidth you want!
• Max hop count is 8. Four hops
recommended..again throughput!
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26. Planificación y Diseño
Latencia y Throutghput Típico en el Backhaul
Avg 2-3 msec
latency per hops
HOPS RAP One Two Three Four
MAX Throughput
112 Mbps 83 Mbps 41 Mbps 25 Mbps 15 Mbps
(20MHz BH)
MAX Throughput
206 Mbps 111 Mbps 94 Mbps 49 Mbps 35 Mbps
(40MHz BH)
Numbers are average of US and DS
 Latency: 10 ms per Hop, 0.3-1 milliseconds typical
 Hops: Outdoor: code supports 8 Hops; 3–4 Hops are recommended
 Nodes: 20 MAPs per RAP are recommended
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27. Planificación y Diseño
Sectorización (Bridge Group)
3 Hops 2 Hops  Logically groups APs and controls the
association of the radios
1 Hop
 For adding capacity we recommend
that you have more than one RAP in
the same sector, with the same BGN,
but on different channels
 Having multiple RAPs with same BGN in
an area is good for redundancy: when a
RAP goes down its MAPs will join a
different sector with same name
RAP
 A factory default BGN is empty (NULL
VALUE). It allows the MAP to do the
first association
MAP
MAP
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28. Implementación y relevamiento
Equipment
Inside
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29. Gracias!
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