###
工程科学与技术:2014,46(2):121-126
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
多信道认知无线电协作检测与通信模型
(南京航空航天大学 航天学院)
Cooperative Detection and Communication Model of Multi-channel Cognitive Radio
(College of Astronautics,Nanjing Univ. of Aeronautics and Astronautics)
摘要
图/表
参考文献
相似文献
本文已被:浏览 1878次   下载 0
投稿时间:2013-10-05    修订日期:2013-12-23
中文摘要: 为了保证主用户的通信质量和提高次用户的频谱利用率,提出了次用户间协作检测以及主用户和次用户协作通信的多信道认知无线电模型。模型中,次用户协作检测到主用户存在时,能够在所有子信道中使用半个帧协作主用户通信和剩下半个帧传输自身数据;通过联合分配次用户和功率,在保证主用户通信质量的同时,最大化次用户吞吐量。仿真表明:相比传统的非协作模型,提出的协作模型能够使主用户和次用户的吞吐量都有所提高。
Abstract:A multi-channel cognitive radio model was proposed to guarantee the communication quality of primary user (PU) and improve the spectrum utilization of secondary user (SU). This model was implemented through cooperative detection between SUs and cooperative communication between SU and PU. When PU’s presence was detected by SU’s cooperative detection, PU’s data was relayed through SU’s cooperative communication in half a frame, and then SU’s data was transmitted by itself in the left frame. While PU’s communication quality was guaranteed, SU’s throughput was maximized through jointly allocating SU and power. Simulation results showed that compared with the traditional non-cooperative model, both the throughputs of PU and SU are improved in the proposed cooperative model.
文章编号:201301218     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(61102069;61301105); 南京航空航天大学引进人才科研启动基金资助项目(56YAH13029); 南京航空航天大学青年科技创新基金资助项目(NS2013085)
作者简介:
引用文本:
刘鑫,仲伟志,井庆丰,孔繁锵.多信道认知无线电协作检测与通信模型[J].工程科学与技术,2014,46(2):121-126.
Liu Xin,Zhong Weizhi,Jing Qingfen,Kong Fanqiang.Cooperative Detection and Communication Model of Multi-channel Cognitive Radio[J].Advanced Engineering Sciences,2014,46(2):121-126.