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Single User MCS Proposal

Explore coding, modulation levels, and SNR performance with proposed MCS for 11n and 11ac. Includes simulation results, QAM analysis, and a straw poll survey.

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Single User MCS Proposal

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  1. Single User MCS Proposal Date: 2010-05-16 Authors: Slide 1 Vinko Erceg et al.

  2. Outline • Coding and modulation levels using SNR vs. mutual information calculation • PER vs. SNR simulation results • Proposed MCS • Straw poll Vinko Erceg et al.

  3. 11n MCS + 256 QAM (R=3/4 and 5/6) • MI vs. SNR for different modulation/coding levels • Modulation bits = [ 1 2 2 4 4 6 6 6 8 8 ] • Rate = [1/2 1/2 3/4 1/2 3/4 2/3 3/4 5/6 3/4 5/6 ] Vinko Erceg et al.

  4. Simulation Parameters • Channel Model D • 80 MHz Bandwidth • 26 columns in row column interleaver • Spatial stream frequency rotation with NROT = 58 • BCC encoding with single encoder • MMSE receiver • 1x1 – 4x4 antenna configurations • Number of spatial streams equals number of antennas • 40 ppm center frequency offset • Phase noise at -41 dBc • Uncorrelated at TX • Correlated at RX • 1000 packets per SNR point Vinko Erceg et al.

  5. 256 QAM Code Rate Comparison Nss=1 Vinko Erceg et al.

  6. 256 QAM Code Rate Comparison Nss=2 Vinko Erceg et al.

  7. 256 QAM Code Rate Comparison Nss=3 Vinko Erceg et al.

  8. 256 QAM Code Rate Comparison Nss=4 Vinko Erceg et al.

  9. Proposed .11ac MCS (0-9) Vinko Erceg et al.

  10. Straw Poll Vinko Erceg et al.

  11. Straw Poll #1 • Do you support adding the following item into the specification framework document, 11-09/0992? • R3.3.F: The draft specification shall include SU MCS set consisting of modulation and coding levels as defined in Table on slide 9 except MCS 9 for 20 MHz BW. • Yes: 68 • No: 9 • Abs: 8 Vinko Erceg et al.

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