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应用于中继蜂窝网络的混合式协作中继选择算法 被引量：2

A Hybrid Cooperative Relay Selection Algorithm for Relay Based Cellular Networks
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摘要 提出一种应用于中继蜂窝网络的混合型协作中继选择算法(HCRSA).当用户采用中继传输时,为实现协作通信,HCRSA算法根据当前小区中的用户密度情况,动态地选择了基站和中继节点之间的协作传输,或中继节点和协作用户之间的协作传输.仿真结果表明,与固定中继选择相比,HCRSA能根据网络中的实际情况选择不同的协作中继机制,充分利用协作中继来有效提高用户容量,提升系统性能. A hybrid cooperative relay selection algorithm （HCRSA） is presented for relay based cellular networks. According to current user density in a certain cell, when two-hop transmission mechanism is adopted, HCRSA will be adapted selectively between two different cooperation schemes. These are realized either between the parallel transmission between the base station and a relay node or by adopting parallel transmission between another mobile terminal and relay node. Simulations demonstrate that, compared with fixed relay selection schemes, HCRSA can dynamically choose different cooperative strategies according to current user condition in the cell by fully utilizing cooperative communication so as to increase effectively the user capacity and as to improve system performance as well.
作者 江帆 田辉 王稀君 张平 张洁涛
机构地区 泛网无线通信教育部重点实验室(北京邮电大学) 北京邮电大学无线新技术研究所 华为技术有限公司
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2009年第2期34-38,共5页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(60632030) 国家"863计划"项目(2006AA01Z283)
关键词 中继选择 中继蜂窝网络 协作中继 协作分集 relay selection relay cellular network cooperative relay cooperative diversity
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献7

  • 1Zhang Ping, Tao Xiaofeng, Zhang Jianhua, et al. A vision from the future: beyond 3G TDD[J].IEEE Communication Magazine, 2005, 43(1): 38-44.
  • 2Cai Jun, Shen Xuemin, Mark J W, et al. Semi-distributed user relaying algorithm for amplify-and-forward wireless relay networks [ J ]. IEEE Transactions on Wireless Communications, 2008, 7(4): 1348-1358.
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同被引文献13

  • 1Zahoor A, Cances J P, Meghdadi V. Beamforming applied to new cooperative decode-and-forward relay schemes [ C ] // VTC 2008-Spring. Singapore: IEEE Press, 2008 : 2421-2425.
  • 2Kim J, Kim D. Cooperativesystem with distributed beamforming and its outage probability [ C ] // VTC 2007- Spring. Dublin: IEEE Press, 2007: 1638-1641.
  • 3Jing Yindi, Jafarkhani H. Network beamforming using relays with perfect channel information[J]. IEEE Transaction on Information Theory, 2009, 55 (6) : 2499-2517.
  • 4Zhao Yi, Adve R, Teng J L. Beamforming with limited feedback in amplify-and-forward cooperative networks [ J ]. IEEE Transaction on Wireless Communication, 2008, 7(12) : 5145- 5149.
  • 5Zeng Erlin, Zhu Shihua, Liao Xuewen, et al. On the performance of amplify-and-forward relay systems with limited feedback beamforming [ J]. IEICE Transaction on Communication, 2008, E91-B (6) : 2053-2057.
  • 6Zhou Shengli, Wang Zhengdao, Giannakis G. Quantifying the power loss when transmit beamforming relies on finite rate feedback [ J]. IEEE Transaction on Wireless Communication, 2005, 4(4) : 1948-1957.
  • 7Proakis J G.数字通信[M].张力军,等译.北京:电子工业出版社,2006:30.
  • 8Gradshteyn I S, Ryzhik I M. Table of integrals, serious, and products [ M ]. San Diego: Academic Press, 2007 : 340.
  • 9Cadambe V R, Jafar S A. Interference alignment and the degrees of freedom for the K user interference channel [ J]. IEEE Transactions on Information Theory, 2004, 54(8) : 3425-3441.
  • 10Chen S, Cheng R S. Achieve the degree of freedom of K- user MIMO interference channel with a MIMO relay [ C ]//J GLOBECOM 2010. Miami: IEEE Press, 2010 : 1-5.

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北京邮电大学学报
2009年 第2期

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