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An empirical study of analog channel feedback

Authors:

Wei-Liang Shen,

Kate Ching-Ju Lin,

Ming-Syan ChenAuthors Info & Claims

SIGCOMM '13: Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM

Pages 529 - 530

https://doi.org/10.1145/2486001.2491716

Published: 27 August 2013 Publication History

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Abstract

Exchanging the channel state information (CSI) in a multiuser WLAN is considered an extremely expensive overhead. A possible solution to reduce the overhead is to notify the analog value of the CSI, which is also known as analog channel feedback. It however only allows nodes to overhear an imperfect channel information. While some previous studies have theoretically analyzed the performance of analog channel feedback, this work aims at addressing issues of realizing it in practice and empirically demonstrating its effectiveness. Our prototype implementation using USRP-N200 shows that analog channel feedback produces a small error comparable to that of estimating CSI using reciprocity, but however can be applied to more general scenarios.

References

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S. Gollakota, S. D. Perli, and D. Katabi. Interference Alignment and Cancellation. In ACM SIGCOMM, 2009.

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K. C.-J. Lin, S. Gollakota, and D. Katabi. Random Access Heterogeneous MIMO Networks. In ACM SIGCOMM, 2011.

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T. Marzetta and B. Hochwald. Fast Transfer of Channel State Information in Wireless Systems. Signal Processing, IEEE Transactions on, 54(4):1268--1278, Apr. 2006.

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Index Terms

An empirical study of analog channel feedback
1. Networks
  1. Network protocols

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Information & Contributors

Information

Published In

SIGCOMM '13: Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM

August 2013

580 pages

ISBN:9781450320566

DOI:10.1145/2486001

General Chairs:
Dah Ming Chiu
Chinese University of Hong Kong, China
,
Jia Wang
AT&T Labs - Research, USA
,
Program Chairs:
Paul Barford
University of Wisconsin, USA
,
Srinivasan Seshan
Carnegie Mellon University, USA

ACM SIGCOMM Computer Communication Review Volume 43, Issue 4
October 2013
595 pages
ISSN:0146-4833
DOI:10.1145/2534169
Issue’s Table of Contents

Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 27 August 2013

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SIGCOMM'13

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SIGCOMM

SIGCOMM'13: ACM SIGCOMM 2013 Conference

August 12 - 16, 2013

Hong Kong, China

Acceptance Rates

SIGCOMM '13 Paper Acceptance Rate 38 of 246 submissions, 15%;

Overall Acceptance Rate 462 of 3,389 submissions, 14%

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Index Terms

Recommendations

An empirical study of analog channel feedback

Performance analysis for multiple‐input multiple‐output‐maximum ratio transmission systems with channel estimation error, feedback delay and co‐channel interference

Performance of uplink feedback MIMO system using joint transmitter-receiver and polarization-multiplexing