太赫兹科学与电子信息学报Issue(3)：386-390,401,6.DOI:10.11805/TKYDA201403.0386
一种适合于认知无线传感网络的路由算法
A routing algorithm for cognitive radio sensor networks
摘要
Abstract
Routing remains as a relatively virginal but important field in Cognitive Radio Sensor Networks (CRSNs). In these networks, not only the lifetime but also the robustness of transmitted data are concerned in routing algorithm design, because of random disturbance from the Primary Users(PUs) activity. In this paper, the energy sensitive and spectrum-aware routing problem in CRSN is studied and the unique characteristics of CRSN routing problem are revealed. This type of problem is formulated as an optimization problem for network life with energy constraints and random topology challenge. In addition, a new routing metric, namely Cognitive Energy(CE), is proposed, which considers both the lifetime and PU's random disturbance to data transmission. Based on it, a heuristic distributed algorithm to prolong network lifetime and enhance reliability of data transmission is presented. The performance comparison demonstrates that the proposed algorithm can adapt well to the changes of channel resources and network topology in CRSN.关键词
认知无线传感网络/路由度量/网络寿命Key words
Cognitive Radio Sensor Network/routing metrics/network lifetime分类
信息技术与安全科学引用本文复制引用
佘远亚,朱宇..一种适合于认知无线传感网络的路由算法[J].太赫兹科学与电子信息学报,2014,(3):386-390,401,6.基金项目
国家科技重大专项课题资助项目(2012ZX03001013-004)；国家自然科学基金资助项目(61271223) （2012ZX03001013-004）
