An empirical study of analog channel feedback

Wei Liang Shen, Ching-Ju Lin, Ming Syan Chen

研究成果: Conference contribution同行評審

摘要

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.

原文English
主出版物標題Proceedings of the SIGCOMM 2013 and Best Papers of the Co-Located Workshops
頁面529-530
頁數2
版本4
DOIs
出版狀態Published - 1 十二月 2013
事件Annual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2013 - Hong Kong, China
持續時間: 12 八月 201316 八月 2013

出版系列

名字Computer Communication Review
號碼4
43
ISSN(列印)0146-4833
ISSN(電子)1943-5819

Conference

ConferenceAnnual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2013
國家/地區China
城市Hong Kong
期間12/08/1316/08/13

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