Half-duplex relay systems based on polar codes

Half-duplex relay systems based on polar codes
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基于Polar码的半双工中继系统

DOI:
10.1049/iet-com.2013.0521
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发表时间:
2014-03
期刊:
影响因子:
1.6
通讯作者:
Fasheng Zhou
Fasheng Zhou
中科院分区:
计算机科学4区
文献类型:
--
作者:
Qicong Zhan;Minghui Du;Yige Wang;Fasheng Zhou

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针对时分半双工中继系统,在每个发送周期的不同时隙中,中继节点既是发射机又是接收机,提出了一种基于极性码的协作通信方案。为了提高效率和减少延迟,建议的代码使用解码转发策略和适当的极化构造。证明了在半双工中继信道中,精心构造的极性码可以达到理论容量,并对时分和信息分割参数进行了优化,以提高中继系统的性能。结果表明,随机选择策略比指定选择策略更有效。仿真结果表明,该方案不仅适用于时分半双工中继系统,也适用于其他中继系统。
A cooperative communication scheme based on polar codes is proposed for time-division half-duplex relay systems, where the relay node is either a transmitter or a receiver in different time slots of each transmitting period. To enhance efficiency and reduce latency, the proposed codes utilise the decode-and-forward strategy and appropriate construction of polarisation. The authors prove that carefully constructed polar codes can achieve the theoretical capacity in the half-duplex relay channel, and time-division and information-division parameters are also optimised to improve the performance of the relay system. It is demonstrated that the random selection strategy is more effective than the appointed one. Simulation results show that the proposed scheme is useful not only for time-division half-duplex relay systems but also for other relay cases.
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