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首页> 外文期刊>Communications Letters, IEEE >Low-Complexity Power Allocation With Network-Coded Cooperation for Single-Carrier Transmission
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Low-Complexity Power Allocation With Network-Coded Cooperation for Single-Carrier Transmission

机译:具有单网络传输的网络编码协作的低复杂度功率分配

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摘要

We consider a power allocation algorithm in a network-coded system with iterative detection for single-carrier transmission. To achieve high network coding gain, the power fraction of each user should be allocated according to channel state information. To facilitate the power allocation, we first develop a density evolution technique for the iterative detection scheme. We then investigate the distribution of optimal power fraction by an exhaustive search. Based on the distribution, we propose a quantization-based power allocation algorithm with a low complexity. In simulations, the proposed algorithm significantly improves the network coding gain.
机译:我们考虑对单载波传输进行迭代检测的网络编码系统中的功率分配算法。为了获得较高的网络编码增益,应根据信道状态信息分配每个用户的功率部分。为了方便功率分配,我们首先为迭代检测方案开发了密度演化技术。然后,我们通过详尽搜索来研究最佳功率分数的分布。基于分布,我们提出了一种复杂度低的基于量化的功率分配算法。在仿真中,该算法显着提高了网络编码增益。

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