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	On Ergodic Capacity of Spectrum-Sharing Systems in Fading Channels
	Wang, Peng ; Chen, Xiang ; Zhou, Shidong ; Wang, Jing
	2010-10-12 ; 2010-10-12
关键词	ergodic capacity opportunistic spectrum access received power constraint spectrum-sharing Engineering, Electrical & Electronic Telecommunications
中文摘要	In spectrum-sharing systems where the secondary user (SU) opportunistically accesses the primary user (PU)'s licensed channel, the SU should satisfy both the transmit power constraint of the SU transmitter and the received power constraint at the PU receiver. This letter studies the ergodic capacity of spectrum-sharing systems in fading channels. The ergodic capacity expression along with the optimal power allocation,scheme is derived considering both the average transmit and received power constraints. The capacity function in terms of the two power constraints is found to be divided into transmit power limited region, received power limited region and dual limited region. Numerical results in Rayleigh fading channels are presented to verify our analysis.
语种	英语 ; 英语
出版者	IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG ; TOKYO ; KIKAI-SHINKO-KAIKAN BLDG MINATO-KU SHIBAKOEN 3 CHOME, TOKYO, 105, JAPAN
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82586]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Peng,Chen, Xiang,Zhou, Shidong,et al. On Ergodic Capacity of Spectrum-Sharing Systems in Fading Channels[J],2010, 2010.
APA	Wang, Peng,Chen, Xiang,Zhou, Shidong,&Wang, Jing.(2010).On Ergodic Capacity of Spectrum-Sharing Systems in Fading Channels..
MLA	Wang, Peng,et al."On Ergodic Capacity of Spectrum-Sharing Systems in Fading Channels".(2010).

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