电子学报2012，Vol.40Issue(1)：35-39,5.DOI:10.3969/j.issn.0372-2112.2012.01.006
适应低信干噪比的认知无线电双向中继方案及其最优功率和时隙分配
A Cognitive Two-Way Relay Scheme for Low-SINR Environments and Its Optimal Power Allocation and Time Division
摘要
Abstract
Cognitive radio and cooperation communication are two attractive techniques to improve the spectrum utilization. We study the achievable rate of an underlying cognitive two-way relay network. A two-slot two-way relay scheme using successive interference cancellation and network coding techniques is considered to better utilize the insufficient spectrum resource of the cognitive relay network.Optimal power allocation and time division of this scheme are proposed to achieve fairness and maximize the minimum end-to-end transmit rate of bidirectional communications in the network. Numerical results verify the superiority of the proposed scheme over existing schemes in the practical strongly restricted cognitive radio environment.关键词
认知无线电/网络编码/双向通信/中继Key words
cognitive radio/ network coding/ two-way communication/ relay分类
信息技术与安全科学引用本文复制引用
陆路希,蒋伟,项海格,罗武,尚勇..适应低信干噪比的认知无线电双向中继方案及其最优功率和时隙分配[J].电子学报,2012,40(1):35-39,5.基金项目
国家自然科学基金(No.60972008) （No.60972008）
国家863高技术研究发展计划(No.2008AA01Z226) （No.2008AA01Z226）
国防预研基金(No.9140A22031010XXXX) （No.9140A22031010XXXX）
