Full-duplex spectrum sharing in cooperative single carrier systems
Full-duplex spectrum sharing in cooperative single carrier systems
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DOI：
10.1109/wcnc.2015.7127439
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发表时间：
2015-03
期刊：
影响因子：
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通讯作者：
Yansha Deng;K. Kim;T. Duong;M. Elkashlan;G. Karagiannidis;A. Nallanathan
中科院分区：
文献类型：
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作者：
Yansha Deng;K. Kim;T. Duong;M. Elkashlan;G. Karagiannidis;A. Nallanathan
在本文中，我们提出了循环前缀单载波（CP-SC）全双工传输在合作频谱共享，以实现多径分集增益和全双工频谱效率。将全双工传输集成到协作频谱共享系统中导致两个固有问题：1）PU处的峰值干扰功率约束同时施加在次级源（SS）和次级中继（SR）处的发射功率上;以及2）在次级中继处的发射天线和接收天线之间发生残余环路干扰。因此，在频率选择性衰落信道中，在主用户处的峰值干扰功率约束和SS和SR处的最大发射功率约束下检查残余环路干扰的影响是特别具有挑战性的问题。为了做到这一点，我们推导并定量评估了频率选择性衰落信道中几种中继选择策略的精确和渐近中断概率。我们的研究结果表明，零分集增益获得全双工。
In this paper, we propose cyclic prefix single carrier (CP-SC) full-duplex transmission in cooperative spectrum sharing to achieve multipath diversity gain and full-duplex spectral efficiency. Integrating full-duplex transmission into cooperative spectrum sharing systems results in two intrinsic problems: 1) the peak interference power constraint at the PUs are concurrently inflicted on the transmit power at the secondary source (SS) and the secondary relays (SRs); and 2) the residual loop interference occurs between the transmit and the receive antennas at the secondary relays. Thus, examining the effects of residual loop interference under peak interference power constraint at the primary users and maximum transmit power constraints at the SS and the SRs is a particularly challenging problem in frequency selective fading channels. To do so, we derive and quantitatively evaluate the exact and the asymptotic outage probability for several relay selection policies in frequency selective fading channels. Our results manifest that a zero diversity gain is obtained with full-duplex.