| 改进的协作中继节点选择策略 |
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| 引用本文： | 陈纯锴,谢红.改进的协作中继节点选择策略[J].哈尔滨工程大学学报,2012(2):240-243. |
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| 作者姓名： | 陈纯锴 谢红 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院 |
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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.
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| 关 键 词： | 中继选择 译码转发 信道状态信息 距离信息 |
An improved strategy of cooperative relay node selection |
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| CHEN Chunkai,XIE Hong.An improved strategy of cooperative relay node selection[J].Journal of Harbin Engineering University,2012(2):240-243. |
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| Authors: | CHEN Chunkai XIE Hong |
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| Affiliation: | (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | 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 forward based on channel state information and distance information,and the relay selection criteria and formula derivation were discussed.The selection factor should be determined according to stimulus-response(S-R) instantaneous channel gain and resolution-defocus(R-D) distance;in the following research,the best relay node was obtained according to this selection factor,and the steps of the selection strategy were provided.The simulation results 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. |
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| Keywords: | relay selection decoding and forward channel state information distance information |
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