Sum Rate Maximizing Superposition Coding Scheme for a Two-User Wireless Relay System
Sum Rate Maximizing Superposition Coding Scheme for a Two-User Wireless Relay System
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DOI：
10.1109/lcomm.2011.030311.101901
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发表时间：
2011-03
期刊：
影响因子：
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通讯作者：
Megumi Kaneko;K. Hayashi;H. Sakai
中科院分区：
文献类型：
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作者：
Megumi Kaneko;K. Hayashi;H. Sakai
无线系统被认为是由一个基站（BS）和一个中继站（RS）以下行链路（DL）向用户提供服务的系统。提出了一种基于叠加编码（SC）的方案，其中两个用户由三个叠加层服务，利用三个可用链路最大化和速率。通过推导出的最优分配参数，我们的方案在求和速率和公平性方面优于基准方案，使其在调度多用户时非常有效。
A wireless system is considered where users are served in Downlink (DL) by one Base Station (BS) and one Relay Station (RS). A scheme based on Superposition Coding (SC) is proposed, where two users are served by three superposed layers that take advantage of the three available links for maximizing sum rate. With the derived optimal allocation parameters, our scheme outperforms benchmark schemes for sum-rate and fairness, making it very efficient for scheduling multiple users.