1 / 13

32FFT Interleaver

32FFT Interleaver. Authors:. Date: 2012-01-16. Slide 1. Authors continued:. Slide 2. Outline. 32FFT OFDM was accepted in contribution 1311 as the PHY used for 1MHz waveform

washi
Télécharger la présentation

32FFT Interleaver

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 32FFT Interleaver Authors: Date: 2012-01-16 Ron Porat, Broadcom Slide 1

  2. Authors continued: Ron Porat, Broadcom Slide 2

  3. Outline • 32FFT OFDM was accepted in contribution 1311 as the PHY used for 1MHz waveform • In this contribution we provide simulation results for determining the value of Ncol used for one spatial stream interleaver • Recall Ncol determines the interleaver depth and is a divisor of the number of DATA tones (24 for 32FFT). Ron Porat, Broadcom Slide 3

  4. 5000 channel realizations • 256byte per packet, ideal receiver • 7 different interleaver sizes Ncol=[1 2 3 4 6 8 12]. • 2 channel models • SCM Urban Micro - used to represent a typical outdoor channel. • SCM Urban Macro – used to represent a high delay spread channel. Simulations in this case used per-packet average power normalization to better isolate the impact of the interleaver on performance Simulations Ron Porat, Broadcom Slide 4

  5. Advantage for Ncol=8 MCS0 Rep2 Ron Porat, Broadcom Slide 5

  6. All options are close MCS0 Ron Porat, Broadcom Slide 6

  7. Aside from Ncol=1 all options are close MCS3 Ron Porat, Broadcom Slide 7

  8. Ncol=6 or 8 provide the best performance MCS4 Ron Porat, Broadcom Slide 8

  9. Ncol=8 provides the best performance MCS5 Ron Porat, Broadcom Slide 9

  10. Ncol=6 or 8 provide the best performance MCS6 Ron Porat, Broadcom Slide 10

  11. Advantage to Ncol=12 with Ncol=8 following MCS7 Ron Porat, Broadcom Slide 11

  12. Ncol=8 provides the best overall performance from the lowest (and critical for range) MCS0 rep2 up to MCS7 Conclusions Ron Porat, Broadcom Slide 12

  13. Do you support Ncol=8 as the 32FFT interleaver choice? • Yes • No • ABS Straw Poll Ron Porat, Broadcom Slide 13

More Related