| 改进的WiMAX中继选择算法研究 |
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| 引用本文： | 万伟,张春业,张波,马小强. 改进的WiMAX中继选择算法研究[J]. 计算机工程, 2011, 37(4): 110-111. DOI: 10.3969/j.issn.1000-3428.2011.04.039 |
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| 作者姓名： | 万伟 张春业 张波 马小强 |
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| 作者单位： | 山东大学信息科学与工程学院,济南,250100 |
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| 摘 要： | 针对802.16j 的移动多跳中继网络提出一种基于路径损耗和SINR的中继选择算法。该算法通过计算每条传输链路的路径损耗，选出路径损耗之和最小的2个中继站，比较这2个中继站与移动终端之间接入链路的SINR，将具有最大接入链路SINR值的中继站作为最优中继来改善移动终端的服务质量。对系统性能指标进行仿真分析，结果表明该算法可以有效降低中断概率和提高网络的稳健性。
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| 关 键 词： | 中继站 中继选择 路径损耗 |
Research on Improved Relay Selection Algorithm in WiMAX |
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| WAN Wei,ZHANG Chun-ye,ZHANG Bo,MA Xiao-qiang. Research on Improved Relay Selection Algorithm in WiMAX[J]. Computer Engineering, 2011, 37(4): 110-111. DOI: 10.3969/j.issn.1000-3428.2011.04.039 |
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| Authors: | WAN Wei ZHANG Chun-ye ZHANG Bo MA Xiao-qiang |
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| Affiliation: | (School of Information Science and Engineering,Shandong University,Jinan 250100,China) |
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| Abstract: | This paper proposes a relay selection algorithm based on path loss and the SINR in the Mobile Multihop Relay（MMR） network of 802.16j. The algorithm by calculating the path loss of each transmission link, selects two Relay Stations（RS） with the smallest path loss and then compares the SINR of the access link between the two relay stations and mobile terminal, selects the relay station with the greatest link S1NR as the optimal relay to improve the quality of service for mobile terminals. Simulation results show that this algorithm can effectively reduce the outage probability and increase network robustness. |
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| Keywords: | Relay Station（RS） relay selection path loss |
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