Joint power and spectrum allocation in multi-hop cognitive radio networks  

作　　者：WU Jing LI Yi LIU Gang JI Hong 

机构地区：[1]School of Telecommunication Engineering, Beijing University of Posts and Telecommunications

出　　处：《The Journal of China Universities of Posts and Telecommunications》2014年第2期9-14,共6页中国邮电高校学报（英文版）

基　　金：supported by the Hi-Tech Research and Development Program of China(2012AA01A508);the Beijing Higher Education Young Elite Teacher Project(YETP0432);the Specialized Research Fund for the Doctoral Program of Higher Education(20120005120010)

摘　　要：Various cognitive network technologies are developed rapidly. In the article, the power and spectrum allocation in multi-hop cognitive radio network （CRN） with linear topology is investigated. The overall goal is to minimize outage probability and promote spectrum utility, including total reward and fairness, while meeting the limits of total transmit power and interference threshold to primary user simultaneously. The problem is solved with convex optimization and artificial bee colony （ABC） algorithm jointly. Simulation shows that the proposed scheme not only minimizes outage probability, but also realizes a better use of spectrum.Various cognitive network technologies are developed rapidly. In the article, the power and spectrum allocation in multi-hop cognitive radio network （CRN） with linear topology is investigated. The overall goal is to minimize outage probability and promote spectrum utility, including total reward and fairness, while meeting the limits of total transmit power and interference threshold to primary user simultaneously. The problem is solved with convex optimization and artificial bee colony （ABC） algorithm jointly. Simulation shows that the proposed scheme not only minimizes outage probability, but also realizes a better use of spectrum.

关 键 词：cognitive radio power allocation outage probability spectrum utility ABC algorithm 

分 类 号：TN925[电子电信—通信与信息系统]