Wireless Backhaul Networks With Precoding Complex Field Network Coding
Wireless Backhaul Networks With Precoding Complex Field Network Coding
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DOI：
10.1109/lcomm.2015.2391108
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发表时间：
2015-01
期刊：
影响因子：
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通讯作者：
Hoc Phan;F. Zheng;M. Fitch
中科院分区：
文献类型：
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作者：
Hoc Phan;F. Zheng;M. Fitch
在本文中，我们提出了一种网络编码方案的上行链路无线回程网络，以增加吞吐量，同时保证全分集阶。提出的关键进步是采用两个用户和两个基站回程网络的预编码复域矩阵，以实现1个符号/信道使用的吞吐量，同时保证这种单向两跳通信设置的全分集顺序。特别地，使用所提出的网络编码方案的所考虑的无线回程网络的吞吐量比使用传统的复数域网络编码（CFNC）的吞吐量高50%，比使用传统的放大转发（AF）中继传输的吞吐量高200%。重要的是，所考虑的网络获得全分集阶数，即，分集阶数与相应的传统CFNC和AF中继网络的分集阶数相同。数值结果表明，在高信噪比下，两两错误概率的仿真结果紧密收敛于渐近曲线。
In this paper, we propose a network coding scheme for up-link wireless backhaul networks to increase the throughput while guaranteeing full diversity order. The key advance proposed is the employment of precoding complex field matrices for two user and two base station backhaul networks to achieve throughput of 1 symbol/channel use while guaranteeing full diversity order for this one-way two-hop communications setting. In particular, the throughput of the considered wireless backhaul network using the proposed network coding scheme is 50% higher than that using conventional complex field network coding (CFNC) and 200% higher than that using conventional amplify-and-forward (AF) relay transmission. Importantly, the considered network obtains full diversity order, i.e., the diversity order is the same as that of the respective conventional CFNC and AF relay networks. Numerical results indicate that the simulation results of the pairwise error probability tightly converge to the asymptotic curves in the high signal-to-noise ratio.