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1. 中央财经大学信息学院 北京 100081
2. 清华信息科学与技术国家实验室 北京 100084
3. 空军大连通信士官学校 大连 116600
[ "刘银山,男,清华大学电子工程系博士生,空军大连通信士官学校无线电导航系讲师,主要研究方向为移动蜂窝网络技术、自组织与合作通信技术(激励机制设计、中继选择)、绿色通信、认知无线电技术和多网络共存技术等。" ]
[ "钟晓峰,男,博士,清华大学电子工程系副研究员,主要研究方向为无线网络技术,包括4G/5G移动通信系统、分布式无线通信系统、无线自组织与协作传输网络等。作为课题负责人承担“973”计划、国家科技重大专项等7项国家课题及相关部委课题等。在无线网络的传输、接入协议,业务特征等方面开展了深入的研究,提出了多个创新算法。已发表(录用)论文40余篇,申请专利11项。" ]
[ "王京,男,清华大学博士生导师,清华信息科学与技术国家实验室副主任,清华大学信息技术研究院无线与移动通信技术研究中心主任、微波与数字通信国家重点实验室副主任兼无线传输与个人通信研究室主任,中国第三代移动通信研究开发项目(C3G)总体组成员,第三代移动通信技术实验(3G-TEG)专家组专家,国家“十五”“863”计划“未来移动通信(FUTURE)”项目总体组专家,中国电子学会高级会员,中国通信学会无线及移动通信委员会委员;主要研究方向为无线移动通信和宽带无线传输技术,包括B3G/4G 移动通信、WCDMA、TD-SCDMA 系统研究,调制解调技术、纠错编译码技术、移动通信抗衰落技术、MIMO 与时空联合数字信号处理技术、分布式无线通信系统等。" ]
网络出版日期:2015-11,
纸质出版日期:2015-11-20
移动端阅览
刘银山, 钟晓峰, 王京. 认知合作中继网络中的最优中继选择策略[J]. 电信科学, 2015,31(11):30-35.
Yinshan Liu, Xiaofeng Zhong, Jing Wang. Optimal Relay Selection Strategy in Cognitive Cooperative Relaying Network[J]. Telecommunications science, 2015, 31(11): 30-35.
刘银山, 钟晓峰, 王京. 认知合作中继网络中的最优中继选择策略[J]. 电信科学, 2015,31(11):30-35. DOI: 10.11959/j.issn.1000-0801.2015228.
Yinshan Liu, Xiaofeng Zhong, Jing Wang. Optimal Relay Selection Strategy in Cognitive Cooperative Relaying Network[J]. Telecommunications science, 2015, 31(11): 30-35. DOI: 10.11959/j.issn.1000-0801.2015228.
认知合作中继通信可以有效提升无线通信网络的性能和频谱效率。在中继节点较多的情况下,最优中继选择是一个有待解决的问题,它是中继探测成本与合作通信的分集增益之间的一个折中。基于有限情形的最优停时理论给出了最优中继选择策略,进一步得到一个纯SNR(signal-to-noise ratio,信噪比)阈值结构的策略。数字仿真结果验证了其有效性,在待探测中继较多和每个中继探测成本较高情况下,该最优中继选择策略以最少的探测次数获得最大的收益增益。
Cognitive cooperative relaying communication significantly improves the performance of wireless communication networks and spectral efficiency.Optimal relay selection problem
which characterize the desired tradeoff between the probing cost for establishing cooperative transmission and hence higher reward via cooperative diversity
is a hard issue when the number of relay nodes is large.Optimal relay selection strategy was established by using optimal stopping theory with a finite horizon.Furthermore
a pure SNR(signal-to-noise ratio)threshold structure was exhibited.Theoretical analysis and numerical results indicate that proposed optimal relay selection strategy is effective in reducing the number of probing candidate relays and improving the reward of source.
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