POLYPHONY: Scheduling-Free Cooperative Signal Recovery in Enterprise Wireless Networks
POLYPHONY: Scheduling-Free Cooperative Signal Recovery in Enterprise Wireless Networks
复制标题
POLYPHONY：企业无线网络中的无调度协作信号恢复
DOI：
10.1109/tmc.2016.2592900
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发表时间：
2017-09
影响因子：
7.9
通讯作者：
Yafei Zhang
中科院分区：
文献类型：
--
作者：
Panlong Yang;Yubo Yan;Xiangyang Li;Yafei Zhang
Recent years have seen major innovations in cooperative wireless networks. Despite the fact that throughput gains have been achieved in packet recovery, hardly any of these technologies could effectively decode signals when the number of signal sources is greater than available antennas in each AP. Thus, conventional cooperative methods rely on adaptive scheduling for interference-free data packets. Deploying scheduling-free cooperative signal recovery requires prompt processing with low overheads. Yet potentially, the concurrent client transmissions could overwhelm any single AP, i.e., the number of concurrent transmissions are more than that of antennas. This paper presents the first step towards breaking this stalemate, by enabling symbol alignment and constellation reinforcement instead of relying on scheduling. We present POLYPHONY, a scheduling-free cooperative design, where decoding process could be coordinated without over-the-air scheduling, and coupled signals are decoded promptly after deep cooperations. We implement POLYPHONY prototype with GNURadio/USRP platform, and deploy it with a 16-node enterprise network. Particularly, we demonstrate how it manages the complex interactions with scheduling-free signal enforcement, and enables a beyond node-DoF (Degree of Freedom) decoding with AP coordinations. Furthermore, we show how the cooperative decoding process improves radio access among clients. Our results demonstrate a gain of nearly 200 percent for network throughput, which is a significant improvement for heavy contending networks.
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DOI：
10.1145/2342356.2342401
发表时间：
2012-08
期刊：
--
影响因子：
--
作者：
Hariharan Rahul;Swarun Kumar;D. Katabi
通讯作者：
Hariharan Rahul;Swarun Kumar;D. Katabi
DOI：
10.1145/2486001.2486034
发表时间：
2013-08
期刊：
Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM
影响因子：
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作者：
Swarun Kumar;Diego Cifuentes;Shyamnath Gollakota;D. Katabi
通讯作者：
Swarun Kumar;Diego Cifuentes;Shyamnath Gollakota;D. Katabi
DOI：
10.1109/infcom.2013.6566928
发表时间：
2013-04
期刊：
2013 Proceedings IEEE INFOCOM
影响因子：
--
作者：
Mahanth K. Gowda;Souvik Sen;Romit Roy Choudhury;Sung-Ju Lee
通讯作者：
Mahanth K. Gowda;Souvik Sen;Romit Roy Choudhury;Sung-Ju Lee
影响因子：
2.2
作者：
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通讯作者：
Shengdong Xie;Yuxiang Wang
DOI：
10.1145/1614320.1614353
发表时间：
2009-09
期刊：
--
影响因子：
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作者：
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通讯作者：
Vivek Shrivastava;N. Ahmed;Shravan K. Rayanchu;Suman Banerjee;S. Keshav;K. Papagiannaki;Arunesh Mishra-Arunesh-M