通信学报2011，Vol.32Issue(11)：183-190,8.
认知无线网络中基于主用户行为的联合路由和信道分配算法
Primary-user behavior based joint routing and channel allocation algorithm in cognitive radio networks
摘要
Abstract
To resolve the unstable routing problem due to the variation of spectrum availability caused by primary users' behaviors in cognitive radio networks (CRN), a primary-user behavior based joint routing and channel allocation (PUB-JRCA) algorithm was proposed. The PUC-JRCA algorithm characterized the primary-user behavior by using the call-based model. According to the route discovery mechanism in the dynamic source routing protocol, the destination node selected the route which received the least impact from primary-user behaviors after receiving a number of route requests. Then, the destination sent back the route reply packet (RREP) along the selected route, and the channel allocation was performed when the RREP passed each node on this route. Theoretic analyses prove that the expected available transmission time for the packet delivery is inversely proportional to the probability that PU is active. Moreover, the computational complexity of the proposed algorithm is proportional to the number of nodes in the CRN. Simulation results show that the proposed algorithm has higher packet delivery ratio and lower average packet delay than the Gymkhana routing scheme.关键词
认知无线网络/主用户行为/路由/信道分配Key words
cognitive radio networks/primary-user behavior/routing/channel allocation分类
信息技术与安全科学引用本文复制引用
刘婧,任品毅,薛少丽,张超..认知无线网络中基于主用户行为的联合路由和信道分配算法[J].通信学报,2011,32(11):183-190,8.基金项目
国家自然科学基金重点资助项目(60832007) （60832007）
国家自然科学基金资助项目(61102082) （61102082）
国家高技术研究发展计划("863"计划)基金资助项目(2009AA011801) （"863"计划）
国家科技重大专项基金资助项目(2010ZX03005-003) （2010ZX03005-003）
东南大学移动通信国家重点实验室开放研究基金资助课题(2011D14) （2011D14）
