Home Networking On Coax for Video and Multimedia

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Home Networking On Coaxfor Video and Multimedia

• www.MoCAlliance.org

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About MoCA

• MoCAs Mission
• To develop and promote specifications and certify
  interoperable products that enable distribution
  of entertainment within the home using the
  existing in-home coaxial cabling
• Board of Directors
• Comcast, Cox, Echostar, Entropic, Linksys,
  Motorola, Panasonic, RadioShack, Toshiba, Verizon
• MoCA Activities
• Develop technical specifications, validate
  through field tests, certify MoCA enabled
  products as interoperable, and ensure access to
  necessary intellectual property for all members
  on reasonable and non-discriminatory terms
• Join MoCA http//www.mocalliance.org/en/join/inde
  x.asp

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Drivers for Home Multimedia Networks

• Cable operator whole-home DVR and triple play
• DBS whole-home DVR
• Telco triple-play video, voice, data
• Retail
• Home server client for multimedia
• DVD-DVR combo
• Media Center PC to Media Center Extender/TV
• Backbone for WiFi

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Multimedia Throughput Needs

• Data rate
• Simultaneous multiple HDTV,SDTV, data, voice
  gaming, ...
• Example 1HD FF, 1 ATSC, 2 SD double hop, 10 Mbps
  data
• 36 - 128 Mbps
• Customers ask MoCA for 60 to 100 Mbps net
  throughput
• Quality reliability
• Does not degrade when other services are added
• Does not degrade when neighbor or housemate runs
  services
• Does not degrade when home appliances are turned
  on

Ave Mbps Peak Mbps Trick mode Mbps
SDTV 1-2.5 2 - 9 4 20
HDTV 8 - 20 8 - 25 8 40
ATSC 20 20 20 40
Double Hop x2 x2 x2
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The Home Usage Model And Connectivity

• Each room can be a source and sink of multi-media
• Consumers may
• Move equipment to other rooms
• Add a cable or splitter
• Mandatory connectivity model
• Room-to-room, peer-to-peer, full mesh, all
  outlets source and sink
• Backwards through splitters
• MoCA is the only technology that provides
  no-excuses networking room-to-room over in-home
  coax as is

Needed
Connectivity Model Desirable Not Desirable
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A Unique Environment Coax room-to-room
Room-to-room characteristics dictate and require
a custom PHY/MAC solution for ubiquitous coverage
Frequency Response Long Path F gtB
Frequency Response Short Path F gt E
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Coax/Splitters Support Coexistencewith Existing
Services

• Coexistence with existing services is required
• VDSL on coax (4-12 Mhz), Cable operator upstream
  (5-42 Mhz),
• Over-air (54 806 Mhz), Cable operator
  downstream (50-860 Mhz)
• Coax and splitters support reliable
  communications above 860 Mhz

54-806/860 Off-Air/CATV
5-42 Upstream 4-12 VDSL
MoCA
MoCA
MoCA

1
2-38 MoCA
54-806/860 Off-Air/CATV-down
950-2150 Satellite L-Band
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MoCA
54-806/860 Off-Air/CATV
5-42 Upstream 4-12 VDSL
950-2150 Satellite L-Band
3
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Cable Solution

• MoCA enables cable STB with integrated PVR or
  cable modem to be a whole-house solution
  extending
• PVR ITV services to all TVs
• Ethernet directly to a PC
• No consumer adoption or education issues
• Consumer is not aware of the presence of any
  network.
• No new wires, connections, or behavior
• 
  Wheres the home network
  in this picture? Invisible to the consumer
  

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DBS Solution

• DVR and whole-home DVR are DBS answer to cable
  operator VOD

• Normal DBS installation today A truck
  roll is required to later enable another
  room. Run a new cable and punch a new hole
  plate in the wall, using normal
  practice 150
• Here, notice that MoCA enables a
  retail client, no truck roll, to be added at
  anytime, and at any existing outlet. Puts
  DBS service at outlet parity with Cable
  Operator. Every existing outlet has
  DBS signal there via MoCA. Saves 150 future
  truck roll. Reduces initial installation
  45/room.

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Telco Solution

• Video, voice, data via FTTH or xDSL
• ONT or DSL-GW, home router, DVR, IPSTBs, PCs, ...

• Where is the WAN and home network
  separation/routing?
• Home router for FTTH
• DSL-GW for xDSL
• Are you double hopping?
• Where is the content source?
• Every room can be a source

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Retail Solution

• One example enabling PC to TV
• DVR will become a standard feature of home
  desktops

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Field Testing of MoCA

• Goal - validate performance and coverage in real
  world conditions
• Field Test conducted in gt240 homes
• Multiple cities (gt120 zip codes)
• Multiple cable providers
• All MoCA Members participated in tests
• Tests conducted under normal living conditions
• No modifications to cable plant
• Existing devices connected to cable
• Existing services connected to cable
• Tests systems designed for use by non-technical
  persons
• MoCA nodes deployed at each home cable outlet
• Test coordinated by laptop PC
• Collected multiple statistics on coverage,
  performance, and link

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Field Test Results

• Packet Error Rate less than 1E-6
• Latency less than 5ms
• Net usable (MAC) data rates, with no changes to
  the home coax system
• 97 of all paths in all homes achieved 100 Mbps
• 100 of homes achieved gt 120 Mbps on at least one
  path
• 90 of homes achieved 80 Mbps on every path in
  the home
• Net usable (MAC) data rates, with simple
  remediation to the installed coax cable system
• 100 of homes achieved 95 Mbps on every path in
  the home

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MoCA Performance/Coverage
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Summary

• Home usage model
• room-to-room, peer-to-peer, full mesh
  connectivity
• 100 Mbps net throughput
• No-excuses, glitch-free video
• Consumer or Service provider enabled
• Medium for whole home reliable, maintainable
  coverage
• Connections collocated with TVs and other video
  devices
• Coexists with existing services and devices
• Medium used as-is no new cables, splitter
  replacements
• Real world validation
• Large scale, multiple company field test
• gt100Mbps in 97 of all connections
• Reasonable remediation for other connections
• MoCA meets all the requirements for home
  networking digital entertainment without
  compromise