Technology of Network & Communication
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1851-1854

Cognitive network power allocation algorithm for dual channel cooperative relay

Liu Shaojianga
Xu Zhiminga
Ni Weichuanb
Wang Fenga
Wan Zhipinga
a. School of Information Science, b. Dept. of Equipment & Laboratory Management, Xinhua College of Sun Yat-Sen University, Guangzhou 510520, China

Abstract

Aiming at the influence of mutual interference of primary and secondary users of cognitive wireless network on network interruption performance and system transmission efficiency, this paper used a two-channel cooperative relay transmission scheme to reduce interference, and proposed an optimal power allocation scheme based on outage probability to improve the interrupt performance and transmission efficiency. In the transmission scheme, the primary and secondary systems processed the received primary signal and the composite signal, and used continuous interference decoding and cancellation to obtain a de-interference signal. In the power allocation scheme, under the premise of guaranteeing the interruption performance of the main system, it proposed an optimization equation for the probability of sub-system outage, which maximized the subsystem throughput by correlating the power allocation factors. Experimental results show that the algorithm has a good effect in improving interrupt performance and system throughput.

Foundation Support

广东省青年创新人才自然科学基金资助项目(2014KQNCX253,2015KQNCX227)
中山大学新华学院2017年度校级科研项目(2017YB005)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.01.0002
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 6
Section: Technology of Network & Communication
Pages: 1851-1854
Serial Number: 1001-3695(2020)06-051-1851-04

Publish History

[2020-06-05] Printed Article

Cite This Article

刘少江, 许志明, 倪伟传, 等. 一种双信道协作中继的认知网络功率分配算法 [J]. 计算机应用研究, 2020, 37 (6): 1851-1854. (Liu Shaojiang, Xu Zhiming, Ni Weichuan, et al. Cognitive network power allocation algorithm for dual channel cooperative relay [J]. Application Research of Computers, 2020, 37 (6): 1851-1854. )

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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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