Advanced Techniques in IEEE 802.11-15/1264r1 for BICM-ID
Explore the innovative packet appending approach in IEEE 802.11-15/1264r1 for Bit-interleaved Coded Modulation with Iterative Decoding (BICM-ID). This comprehensive document covers the proposed transmission scheme, simulation results, and the significance of BICM in systems transmitting over fading channels. Dive into the details of BICM transmitter modeling, SISO decoding, error-free feedback, and the importance of labeling maps for optimizing constellation points. Discover how Gray labeling can impact iterative decoding outcomes in this cutting-edge study.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
November 2015 doc.: IEEE 802.11-15/1264r1 PacketAppending for BICM-ID Date: 2015-11-10 Author: Name Company Address Phone email Maciej Krasicki Poznan University of Technology 3 Polanka str., Poznan, 61-131, POLAND +48 61 665 39 18 maciej dot krasicki at et.put.poznan.pl Contribution Slide 1 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Outline A glance at Bit-interleaved Coded Modulation with Iterative Decoding (BICM-ID) Proposed transmission scheme Simulation results Summary Contribution Slide 2 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 BICM transmitter model Complex signals and phase of real passband signals. represent amplitude channel encoder BICM is a promising technique for systems transmitting over fading channel. Contribution Slide 3 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Transmitter channel encoder Receiver SISO decoder Contribution Slide 4 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 BICM-ID (BICM With Iterative Decoding) channel encoder SISO decoder 1 BICM-ID iteration Contribution Slide 5 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Error-Free Feedback (EF) State SISO decoder 1 BICM-ID iteration Contribution Slide 6 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Error-Free Feedback (EF) State need for a labeling map that assigns bit labels differing in one position from each other to possibly far constellation points (to maximize avg. pairwise distance) Contribution Slide 7 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Gray labeling the worst choice can t benefit much from iterative decoding Contribution Slide 8 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 M16a the optimal one avg. pairwise distance maximized Contribution Slide 9 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Packet Appending for BICM-ID assumptions Append regular packet of Gray-labeled signals by some additional signals mapped according to a labeling map suitable for iterative decoding purposes Adjust the number of additional signals w.r.t. the current channel state Legacy receiver should be able to understand the regular packet Use high constrained-length code Use higher order modulation to avoid higher time consumption Contribution Slide 10 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 PA-BICM-ID transmitter labeling map good for iterative decoding purposes by Huang & Ritcey Contribution Slide 11 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 PA-BICM-ID receiver Contribution Slide 12 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Modulation doping reference . . . . . . (Gray labeling) (non-Gray labeling) Some symbols transmitted only according to a non-Gray labeling map Flexibility, but only moderate performance gain over reference Contribution Slide 13 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Simulation setup Each data frame consists of 10 000 data bytes Pseudo-random interleaver 64-QAM PA-BICM-ID compared with 16-QAM BICM Two retransmission ratio values: Retransmission ratio ( = K/P ) 2/3 1/2 Max. spectral efficiency (bpcu) 2 2.25 For statistical accuracy, simulation runs until 100 erroneous frames have been encountered Contribution Slide 14 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Simulation results (1) Contribution Slide 15 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Simulation results (2) Contribution Slide 16 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Summary PA-BICM-ID introduces the benefits of iterative decoding to systems not originally intended for this purpose Fine tuning to the current propagation conditions No multidimensional constellation = no exponential growth in the demapper routine The whole legacy packet transmitted explicitly the old devices can still hear and decode it Suitable for future multi-casting scenarios Contribution Slide 17 Maciej Krasicki (Poznan University of Technology)
November 2015 doc.: IEEE 802.11-15/1264r1 Straw poll Do you find PA-BICM-ID a promising technique for future WLAN applications? Contribution Slide 18 Maciej Krasicki (Poznan University of Technology)
