Next Generation Access Technologies

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    Next Generation Access Technologies - Presentation Transcript

    1. Next Generation Access Technologies Broadband Properties Summit April 28, 2009
      • High Speed Data: What you’re doing today, but more of it
        • 100Mbps bi-directional already standard in Asia
        • 50Mbps tiers already available in North America
        • Rising popularity of user-generated video
        • Increased resolution of digital photography (photo sharing)
        • Remote services (backup, on-line applications, etc.)
        • Video conferencing and video streaming
      Why do we need Next Generation Access Technologies?
      • Video: IPTV
        • Successfully deployed throughout Europe
        • Gaining acceptance in North America
        • Multiple HD TVs in the home
        • More HD channels, more long tail content
        • More unicast demand (VoD, Network PVR)
        • HD Picture-in-Picture and trick modes create two to three times the bandwidth demand
        • Interactive television applications (e.g. Blu-Ray 2.0)
      Why do we need Next Generation Access Technologies?
      • New Applications
        • 3 dimensional television technologies have been demonstrated (double the HD bandwidth requirement - minimum)
        • Multi-channel DVR chipsets have already been demonstrated: Every Channel DVR (EV/DVR)
          • Up to 100+ HD channels simultaneously
        • Applications not yet imagined
      Why do we need Next Generation Access Technologies?
      • In the future, homes will require several Mbps to Gbps of bandwidth
      • The only medium that can meet this demand is fiber optics
      • Fiber access technologies are mature and are advancing in speed regularly
      • The biggest question is not “Why?”, but “When?”
      It’s Going to be Fiber
    2. 10G Passive Optical Networks
      • The standards bodies have agreed that 10G PON is the next step in PON evolution
        • Capitalizes on existing Ethernet and SONET technologies
        • Allows bursts in excess of 2.4Gbps
        • More efficient use of multicast/broadcast bandwidth
        • Smaller/lower power potential than multi-wavelength solutions
      • Both major standards bodies are working to ensure compatibility with existing PON
        • New wavelength plans do not overlap with existing plans
        • Current ONTs can already implement wavelength blocking based on early IEEE and FSAN work
    3. PON: Standards Bodies
      • From the folks that brought you EPON
      • Data-centric
      • Generally focus on physical layer and engineering design
      • Produce workable standards quickly
      • Largely an equipment / chip vendor community
      • From the folks that brought you GPON
      • Telecommunications focus
      • Attempt to standardize all of the layers from physical through management
      • Produce thorough standards slowly
      • Driven by the carriers with vendor participation
      IEEE FSAN / ITU
      • Status
        • Physical layer complete (wavelengths, etc.)
        • Remaining sections largely complete
        • Chipsets available in early form now, final form in early 2010
      • Speed
        • 10Gbps downstream
        • 1Gbps or 10Gbps upstream
      IEEE NG PON (802.3av)
      • Status:
        • Progress being made on the physical and coding layers
        • Much of the higher layers still being debates
        • Standardization expected to complete in 2010 or early 2011
      • Speed:
        • 10G downstream
        • 1.25G, 2.5G, and 10G upstream options
      ITU NG PON (FSAN NGA1)
    4. WDM PON
      • Popular in Korea, some initial forays into the U.S.
      • Business case in the U.S. is as a logical point-to-point for enterprise customers
      • WDM PON is not currently being considered by either the IEEE or FSAN/ITU NGA1
    5. WDM PON
      • Multiple downstream wavelengths: one to every ONT or to groups of ONTs
      • One or more upstream wavelengths: shared or per ONT
      • A logical point-to-point network
      OLT Optics Tx Tx Tx Tx Wavelength Splitter Field Optics ONT  D1  U1 ONT ONT  D3  U3 ONT  D32  U32 CO Rx Rx Rx Rx
    6. When?
      • The standards bodies are focusing on the access line
      • Other technological advances will be required upstream
        • Interface card capacities increased by a factor of 4
        • Backplane capacity increased by an order of magnitude
        • Switch chip capacity hugely increased
        • Upstream interfaces migrate from GbE to multiple 10GbEs per CO / switch
        • Faster processing, memory, QoS marking, etc.
        • Upstream network impact: ROADM, wavelengths, interfaces, core routers, etc.
      • Additional external pressures make the job more challenging
        • Lower cost
        • Less power consumption including coming ATIS energy efficiency standards
        • Smaller footprint
      • The point: Don’t expect a massive upgrade to NG PON as soon as the standards complete
      • While waiting for NG PON, what should a developer deploy today?
      • Option 1: Current generation PON (GPON/EPON)
        • Current generation PON has plenty of bandwidth for most applications today
        • The fiber infrastructure deployed today will work with NG PON
      • Option 2: RFoG
        • Deploy fiber with an RF headend
        • Allows a fiber infrastructure to be deployed without spending capital on headend upgrades
      • Conclusion: Deploy fiber today and you will not regret it in the future
      Interim Steps
      • Thank You
      • Scott T. Wilkinson
      • VP, Product Management and Systems Engineering
      • Hitachi Communication Technologies America, Inc.
      • [email_address]

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