期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

放大转发中的最优功率分配与最佳中继选择

Optimal power allocation and relay selection in amplify-and-forward relay systems
下载PDF
导出
摘要 用最优功率分配与最佳中继选择相结合的方法实现了放大转发系统的误比特率最小化。为了使单中继非协作放大转发系统的误比特率最小,通过分析媒体接入控制(MAC)层的请求发送/允许发送(RTS/CTS)信息,获得候选中继前向信道和后向信道的增益,以信道增益为变量,得到最佳功率分配的闭合表达式。同时,以误比特率作为中继选择准则,实现分布式最佳中继选择。仿真结果表明,与同类算法相比,该功率分配与中继选择策略使系统的误比特率达到最小。 The minimization of the bit error rate （BER） of amplify-and-forward relay systems was achieved using the method of combining the optimal power allocation with the optimal relay selection. In order to minimize the BER of a single-relay non-cooperative amplify-and-forward system, the forward-channel gain and the backward-channel gain at the candidate relay were obtained through analyzing the request to send/clear to send （RTS/CTS） information in the medium access control （MAC） layer, and a closed form expression to allocate power optimally was got, which is the function of the channel gain. At the same time, considering the BER as the relay selection criterion, a distributed method to select the best relay was presented. The simulation results show that when using the proposed strategy, the system BER is the smallest compared to other similar methods.
作者 王仕果 纪红 温斌
机构地区 湘潭大学信息工程学院 北京邮电大学无线泛网通信教育部重点实验室
出处 《高技术通讯》 EI CAS CSCD 北大核心 2010年第10期1001-1005,共5页 Chinese High Technology Letters
基金 863计划(2009AA01Z246 2009AA01Z211) 国家自然科学基金(60672124)资助项目
关键词 放大转发 最优功率分配 最佳中继选择 无线中继 解码转发 amplify-and-forward, optimal power allocation, optimal relay selection, wireless relay, decode-and- forward
分类号 TN626 [电子电信—电路与系统] TN925 [电子电信—通信与信息系统]
  • 相关文献

参考文献12

  • 1Hong C Y,Pang A C.3-Approximation algorithm for joint routing and link scheduling in wireless relay networks.IEEE Trans on Wireless Communications,2009,8(2):856-861.
  • 2Caleb K L,Sriram V,Robert W H.Relay subset selection in wireless networks using partial decode-and-forward transmission.IEEE Trans on Vehicular Technology,2009,58(2):692-704.
  • 3Liang S,Dimitrios H.Broadcasting energy efficiency limits in wireless networks.IEEE Trans on Wireless Communications,2008,7(7):2502-2611.
  • 4Harish V,Sayandev M.Performance of cellular networks with relays and centralized scheduling.IEEE Trans on Wireless Communications,2005,4(5):2318-2328.
  • 5Ritesh M,Neelesh B,Jin Z.Energy-efficient cooperative relaying over fading channels with simple relay selection,IEEE Trans on Wireless Communications,2008,7(8):3013-3025.
  • 6Muhammad M F,Murat U.BER-optimized power allocation for fading relay channels.IEEE Trans on Wireless Communications,2008,7(6):3150-3159.
  • 7Walid H,Pascal B,Philippe C.Outage probability-based power and time optimization for relay networks.IEEE Trans on Signal Processing,2009,57(2):764-782.
  • 8李国兵,朱世华,惠鏸.最佳中继协作通信系统的功率分配算法[J].电子学报,2008,36(10):1944-1948. 被引量：14
  • 9Li Y,Wang W.Sub-carrier pairing for amplify-and-forward and decode-and-forward OFDM relay links.IEEE Communications Letters,2009,13(4):209-211.
  • 10Bletasas A,Khisti A,Reed D P.A simple cooperative diversity method based on network path selection.IEEE Journal on Selected Areas in Communications,2006,24(3):659-672.

二级参考文献26

  • 1殷勤业,张莹,丁乐,孟银阔.协作分集:一种新的空域分集技术[J].西安交通大学学报,2005,39(6):551-557. 被引量：58
  • 2A Sendonaris, E Erkip, B Aazhang. User cooperation diversity- Part 1 : system description [J].IEEE Transactions on Communication, 2003,51 ( 11 ) : 1927 - 1938.
  • 3A Nosratinia, T E Hunter, A Hedayat. Cooperative communication in wireless networks[J]. IEEE Communications Magazine, 2004,42(10) : 74 - 80.
  • 4J N Laneman, G W Womell. Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks [J]. IEEE Transactions on Information Theory, 2003,49 (10) : 2415 - 2425.
  • 5A Bletsas, A Khisfi, D P Reed, A Lippman. A simple Cooperative diversity method based on network path selection [J]. IEEE Journal on Selected Areas in Communications. 2006,24(3) :659 - 672.
  • 6Z Yi,R Adve,L Teng Joon. Symbol error rate of selection amplify-and-forward relay systems[J]. IEEE Communications Letters, 2006, 10( 11 ) : 757 - 759.
  • 7Y Zhao, R S Adve, T J Lim. Improving amplify-and-forward relay networks: optimal power allocation versus selection [J]. IEEE Transactions on Wireless Communications, 2007, 6 (8) : 3114 - 3123.
  • 8J Luo,R S Blum,L J Cimini, L J Greenstein, A M Haimovich. Link-failure probabilities for practical cooperative relay networks [A]. Proceedings of IEEE Vehicular Technology [C]. 2005, Vol. 3,1489 - 1493.
  • 9C K Lo, R W Heath Jr, S Vishwanath. Opportunistic relay selection with limited feedback [ A] .Proceedings of IEEE Vehicular Technology [ C]. Dublin: IEEF.,2007,135- 139.
  • 10A Bletsas, H Shin, M Z Win. Outage-optimal cooperative communications with regenerative relays [ A]. Proceedings of Conference on Information Sciences and Systems (CISS) [ C]. Princeton: IEEE, 2006,632 - 637.

共引文献22

高技术通讯
2010年 第10期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部