A closed-form sum-rate lower bound for amplify-and-forward multi-way relay networks

被引：1
|
作者：
Lu, Yingzhi [1 ]
Fang, Zhaoxi [2 ]
机构：
[1] Zhejiang Wanli Univ, Literature & Informat Ctr, Ningbo 315100, Zhejiang, Peoples R China
[2] Zhejiang Wanli Univ, Coll Elect & Comp Sci, Ningbo 315100, Zhejiang, Peoples R China
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2018年 / 95卷
关键词：
Multi-way relay network; Amplify-and-forward; Sum-rate bounds;
D O I：
10.1016/j.aeue.2018.07.032
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we investigate the sum-rate performance of the multi-way relay network (MWRN) with amplify-and-forward (AF) relaying, where multiple users exchange information with the help of a relay node. We consider a full exchange scenario where each user has to decode messages form all the other users. We analyze the sum-rate lower and upper bounds of the AF MWRN, and derive a closed-form expression for the average sum-rate low bound when the number of users is sufficient large. Numerical results show that the derived bound is tight.
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页码：1 / 4
页数：4
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