Dynamic Decode-and-Forward Relaying with Partial CSIT and Optimal Time Allocation

被引：0

作者：

SU Yinjie ^{[1
,2
]}

JIANG Lingge ^{[1
]}

HE Chen ^{[1
]}

机构：

[1] Department of Electronic Engineering, Shanghai Jiaotong University

[2] Department of Electronic Engineering, Jiangsu University of Science and Technology

来源：

Chinese Journal of Electronics | 2015年 / 24卷 / 01期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Dynamic decode-and-forward(DDF); Diversity multiplexing tradeoff(DMT); Adaptive time allocation;

D O I：

暂无

中图分类号：

TN92 [无线通信];

学科分类号：

080402 ; 080904 ; 0810 ; 081001 ;

摘要：

A Dynamic decode-and-forward(DDF)relaying protocol with partial Channel state information at the transmitter(CSIT) for a three-node half-duplex single-antenna network, which consists of a single sourcedestination pair and a relay, is proposed. A Diversity multiplexing tradeoff(DMT) analysis is presented, in which the DMT of the proposed protocol is derived in a closedform and an adaptive time allocation strategy is also developed to achieve the optimal performance. It is shown that time allocation with partial CSIT significantly improves the achievable DMT for DDF relaying. Moreover, unlike the existing DDF protocol with CSIT, which is performed with the assumption of long-term power constraint, the proposed protocol can be generalized to the practical scenarios where a strict short-term power constraint is often imposed on, due to the environmental safety and interference prevention.

引用

页码：193 / 198

页数：6