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Status and way forward

Status and way forward. G. Marque-Pucheu EADS October 4 th , 2006. WI scope. Analysis of Incident area networking technologies (Air Interface) based on industry responses received on March 20, 2006.

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Status and way forward

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  1. Status and way forward G. Marque-Pucheu EADS October 4th, 2006

  2. WI scope • Analysis of Incident area networking technologies (Air Interface) based on industry responses received on March 20, 2006. • Should use work already done in TIA/TR8.8 and APIC/BBTG and consider 801.11ma, 802.16e, EV-DO and WCDMA. • Shall include a peer review. • Duration: 1 year (April 06-April 07)

  3. Issues • Start of work by EADS/Thalès linked to start of EC funded CHORIST project • Effective start in September • Very heterogeneous proposal • CDMA based proposal mainly covers JAN aspects and analysis of IAN remains somewhat generic (BelAir document) • 802.11 Motorola proposal focus mainly on IAN • EADS & Thalès proposals need to be merged and detailed • More generally, all proposals are of qualitative nature and do not properly address performance issues

  4. Clarification required for progress • To make progress on reformating of proposals, clarification on architecture and performance is required • EADS analysis leads to refining Connection 2 into Connection 2 (PSCD-Vehicle mounted mobile terminal) and Connection 2’ (Vehicle-vehicle) • Link budget requirements are significantly different due to lower power of PSCDs, body losses, deep indoor penetration,… versus roof mounted antenna systems and high power mobiles • Throughput requirements are also significantly different (ad hoc backbone versus end user connection)

  5. Why uniform assumptions are required, in line with actual users requirements • Assume a low power PSCD (100 mW) inside a building, with some body loss (7 dB), transmitting to receiver outside of the building. • 120 dB path loss • Receiver will get –107 dBm (20-120-7) • Noise will be –167 dBm/Hz • To achieve 1 bit/s/Hz, at 5 dB SNR (current technology), maximum transmitted bandwidth will be 300 kHz (55dBHz) • Maximum rate is 300 kbit/s and Shannon limit is slightly above 400 kbit/s • Current analog voice is supporting 144 dB path loss! • Conversely, rates in the range 10-100 Mbit/s is quite easily achievable for higher power transmitter in vehicles (Connection 2’)

  6. Way forward • EADS will present clarification proposal to build a framework for more uniform and more documented proposals, to pave the road for further progress • To lead to quantitative link attributes requirements • As committed, EADS and Thalès will also propose a merged, updated proposal • Inputs about indoor penetration and propagation and required application bandwidths (PS grade video f.e.) are welcome

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