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6-10GHz Rate-Range and Link Budget

6-10GHz Rate-Range and Link Budget. Date: 2012-09-18. Authors:. Abstract. This document examines rate and range estimates based on channel models for 6-10.5GHz as an extension frequency band for 802.11ac. This Presentation. Throughput estimates for possible 6-10GHz extensions to 11ac

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6-10GHz Rate-Range and Link Budget

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  1. 6-10GHz Rate-Range and Link Budget Date: 2012-09-18 Authors:

  2. Abstract This document examines rate and range estimates based on channel models for 6-10.5GHz as an extension frequency band for 802.11ac.

  3. This Presentation • Throughput estimates for possible 6-10GHz extensions to 11ac • Comparison to Rate-Range for existing 11ac PHY • Link Budget

  4. Summary • An up-sampled 11ac (11ac x 4) • 0.9 us symbol duration for short GI (0.1 us CP) • 1.0 us symbol duration for long GI (0.2 us CP) • 512 FFT/IFFT • 640 MHz channel bandwidth • Carrier spacing = 1250 KHz • Path Loss Parameters [1] PL= PL0 +g*log10(dist.)

  5. PHY Throughput • A 1x1 640 MHz system can provide high bandwidth for very low compressed video. This leads to low latency and high quality required for docking and display application. • A 2x2 640 MHz system can provide throughput in excess of 60GHz devices possibly at lower system cost and power consumption. • The wide bandwidth systems provide in excess of 5Gbps throughput for WLAN applications.

  6. Estimated Rate vs Range (LoS) • Comparison of estimated throughput of 6-10GHz solution with 11ac 80 and 160 MHz solution. In both cases a 1x1 system is considered. • Path Loss models for 6-10GHz are based on ‘IEEE 802.15-02/278r0-SG3a’ The Ultra-wideband Indoor Path Loss Model. Path Loss models for 5GHz are based on IEEE 802.11-03/940r3 “TGn Channel Models’. • In typical applications 6-10 GHz provides 2x the throughput of 160 MHz transmissions along with reduced channel interference, lower power consumption and available world wide spectrum for multiple channel transmission. It also is a simple extension to IEEE 802.11ac reusing the antenna, baseband and MAC technology.

  7. Link Budget for 1x1 SISO Note: Assumes 0dBi antenna, PL=47+17Log10(d) per Molisch, et al.

  8. Summary • 6-10 GHz offers a minimum of 5 channels of 500MHz, each of which can have 1Gbps or more in a cubicle usage model • Spectrum regulations are in place worldwide • Can use SISO or “easy” MIMO (2x2, 16-QAM) • Most capacity improvement comes from B term in Shannon • Some new MCS will need to be added to 11ac • Power consumption of a PHY in these new bands is comparable to 802.11ac and is well suited to mobile platforms • RF design complexity and propagation behavior of signals in these bands is comparable to 802.11ac • 6-10 GHz Could be used by PAN applications freeing up limited 5GHz for Infrastructure/Internet access • Addition of 6-10GHz bands to an 802.11ac PHY gives significant additional spatial capacity for peer-to-peer applications with minimal complexity increase

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