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改进的协作中继节点选择策略 被引量：3

An improved strategy of cooperative relay node selection
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摘要 协作伙伴的选取是影响协作通信网络性能的重要因素.为了增加系统可靠性及降低复杂度,提出了结合信道状态信息及距离信息的中继选择策略,探讨了中继选择标准和公式推导.选择因子是根据S-R瞬时信道增益和R-D距离共同确定,然后根据该因子得到最佳中继节点,同时给出选择策略的步骤.仿真结果表明,该策略能有效降低误码率,性能优于距离信息的中继点选择算法,运算量及复杂度低于瞬时信道信息的中继点选择算法. Cooperative partnership selection is an important factor impacting cooperative communication network performance. In order to increase system reliability and reduce complexity, a relay selection strategy was put for-ward based on channel state information and distance information, and the relay selection criteria and formula deri- vation were discussed. The selection factor should be determined according to stimulus-response （S-R） instantane- ous channel gain and resolution-defocus （R-D） distance; in the following research, the best relay node was ob-tained according to this selection factor, and the steps of the selection strategy were provided. The simulation re- suits show that the strategy can effectively reduce the bit error rate （BER）, and its performance is better than the relay node selection method based on distance information. The calculation work and complexity are lower than in the relay node selection method based on the instantaneous channel information.
作者 陈纯锴 谢红
机构地区 哈尔滨工程大学信息与通信工程学院
出处 《哈尔滨工程大学学报》 EI CAS CSCD 北大核心 2012年第2期240-243,共4页 Journal of Harbin Engineering University
关键词 中继选择 译码转发 信道状态信息 距离信息 relay selection decoding and forward channel state information distance information
分类号 TN929 [电子电信—通信与信息系统]
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参考文献15

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同被引文献29

  • 1张希元.WSN中基于跨层策略的生存周期优化问题研究[D].沈阳:东北大学,2008.
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  • 3Zhou Z,Zhou S,Cui J H,et al.Energy-efficient cooperative communication based on power control and selective single-relay in wireless sensor networks[J].IEEE Trans on Wireless Communication,2008,7(8):3066-3078.
  • 4Bletsas A,Khisti A,Reed D P,et al.A simple cooperative diversity method based on network path selection[J].IEEE Journal on Selected Areas in Communication,2006,24(3):659-672.
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  • 7Gabran W,Daneshrad B.Hardware and physical layer adaptation for a power constrained MIMO OFDM system[C]//Proc of IEEE international conference on communications.Kyoto:IEEE,2011:l-6.
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  • 9Lim G,Cimini L J.Energy-efficient cooperative relaying in heterogeneous radio access networks[J].IEEE Wireless Communication Letter,2012,1(5):476-479.
  • 10Lim G,Cimini L J.Energy-efficient cooperative beamforming in clustered wireless networks[J].IEEE Transactions on Wireless Communications,2013,12(3):1376-1385.

引证文献3

二级引证文献2

哈尔滨工程大学学报
2012年 第2期

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