A Cross-layer Aware Sensing-throughput Tradeoff for Multi-channel Cognitive Radio Networks

被引：0
|
作者：
Zhang, Shaojie [1 ,4 ]
Hafid, Abdelhakim [2 ]
Wang, Zhuo [3 ]
Zhao, Haitao [1 ]
Wang, Shan [1 ,4 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Changsha, Hunan, Peoples R China
[2] Univ Montreal, Montreal, PQ H3C 3J7, Canada
[3] Beijing Univ Posts & Telecommun, Int Sch, Beijing, Peoples R China
[4] Commun Networks Lab, Sci & Technol Informat Transmiss & Disseminat, Beijing, Peoples R China
来源：
2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2015年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In multi-channel cognitive radio networks, it is important to investigate the sensing-throughput tradeoff from cross-layer perspective. Jointly considering imperfect spectrum sensing in physical layer and multi-channel access contention in MAC layer, we reformulate this tradeoff via taking the interference probability, rather than the detection probability, as the optimization constraint. And we further obtain the optimal sensing duration and detection threshold depending on the number of available channels to maximize the secondary throughput under the interference probability constraint. Numerical results show that the proposed cross-layer method can improve the secondary throughput performance significantly.
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页数：5
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