OFDM水声通信系统中基于中继选择的资源分配算法

发布时间：2018-06-02 02:05

本文选题：中继选择 + 水声通信　；参考：《应用声学》2017年02期

【摘要】：针对水声通信中继系统中系统容量和中继选择问题,本文提出了一种基于中继选择的资源分配算法。首先将每条中继链路的信道增益等效为虚拟直传链路的信道增益,然后在等功率分配的前提下,根据信道信息最佳原则,提出了一种中继选择及资源分配的多用户迭代算法,以实现对每个用户的传输链路进行选择和子载波分配,最后通过线性迭代注水算法进行功率分配。仿真结果表明,所提算法在保证目标速率的前提下,提升了系统容量。
[Abstract]:Aiming at the problem of system capacity and relay selection in underwater acoustic communication relay system, a resource allocation algorithm based on relay selection is proposed in this paper. Firstly, the channel gain of each relay link is equivalent to the channel gain of the virtual direct link. Then, based on the principle of optimal channel information, a multi-user iterative algorithm for relay selection and resource allocation is proposed under the premise of equal power allocation. In order to select the transmission link and sub-carrier allocation for each user, the power allocation is carried out by the linear iterative water injection algorithm. The simulation results show that the proposed algorithm improves the system capacity under the premise of ensuring the target rate.
【作者单位】：宁波大学信息科学与工程学院;
【基金】：国家自然科学基金(61571250) 宁波市自然科学基金(2015 A610121)
【分类号】：TN929.3

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