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	Fairness-Throughput Tradeoff in Full-Duplex WiFi Networks
	Hu, Jingzhi ; Liao, Yun ; Song, Lingyang ; Han, Zhu
	2016
关键词	PROTOCOL DESIGN
英文摘要	Recently, some CSMA/CD-alike protocols have been proposed for full-duplex (FD) WiFi networks, in which users are able to monitor the channel and transmit data simultaneously so as to avoid data collisions and improve the spectrum efficiency. However, along with its benefits, the residual self-interference (RSI) brought by FD becomes a new challenge for the network. As the RSI increases with the transmit power, the sensing performance degrades. Thus, on the one hand, increased transmit power of individual user will promote the system throughput. On the other hand, as the user who raises its transmit power suffers from more detection failure, its transmit probability will be higher and leads to a suppression of that of other users, so the system fairness may decrease. Consequently, a tradeoff between the system throughput and fairness emerges. In this paper, we provide theoretical analysis of the system throughput and fairness, and reveal their relationship with the power profile of users in FD WiFi networks. We formulate the power control problem in FD WiFi networks as a non-cooperative game, for which we propose a distributed power control mechanism considering both system throughput and fairness. Simulation results validate the fairness-throughput tradeoff for the proposed power control mechanism.; National 863 project [2015AA01A709 5G]; National Nature Science Foundation of China [U1301255, 614611360023]; US NSF [ECCS-1547201, CCF-1456921, CNS-1443917, ECCS-1405121, NSFC61428101]; CPCI-S(ISTP)
语种	英语
出处	59th Annual IEEE Global Communications Conference (IEEE GLOBECOM)
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/470161]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Hu, Jingzhi,Liao, Yun,Song, Lingyang,et al. Fairness-Throughput Tradeoff in Full-Duplex WiFi Networks. 2016-01-01.

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