Diversity-multiplexing tradeoff of half-duplex multi-input multi-output two-way relay channel with decode-and-forward protocol

被引：0
|
作者：
Su, Yuping [1 ]
Li, Ying [1 ]
Liu, Yang [1 ]
机构：
[1] State Key Lab of ISN, Xidian University, Xi'an,710071, China
来源：
High Technology Letters | 2015年 / 21卷 / 03期
关键词：
Electric relays - Communication channels (information theory) - Rayleigh fading - MIMO systems - Decoding;
D O I：
10.3772/j.issn.1006-6748.2015.03.018
中图分类号：
学科分类号：
摘要：
A multi-input multi-output (MIMO) separated two-way relay channel (STWRC) is considered, where two users exchange their messages via a relay node. When each link is quasi-static Rayleigh fading, the achievable diversity-multiplexing tradeoff (DMT) of the half-duplex STWRC is analyzed. Firstly, the achievable DMT of the STWRC with static decode-and-forward (DF) protocol is obtained. Then, a dynamic decode-and-forward (DDF) protocol for the STWRC is proposed, where the relay listening time varies dynamically with the channel qualities of the links between two users and the relay. Finally, the achievable DMT of the proposed DDF protocol is derived in a case-by-case manner. Numerical examples are also provided to verify the theoretical analysis of both protocols. Copyright © by HIGH TECHNOLOGY LETTERS PRESS.
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页码：364 / 370
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