Diversity-Multiplexing Tradeoff of Dynamic Harvest-and-Forward Cooperation

被引：10

作者：

Ishibashi, Koji ^{[1
]}

Ho, Chin Keong ^{[2
]}

Krikidis, Ioannis ^{[3
]}

机构：

[1] Univ Electrocommun, Adv Wireless & Commun Res Ctr AWCC, Tokyo 1828585, Japan

[2] ASTAR, Inst Infocomm Res, Singapore 138632, Singapore

[3] Univ Cyprus, Dept Elect & Comp Engn, CY-1678 Nicosia, Cyprus

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2015年 / 4卷 / 06期

关键词：

Cooperative diversity; diversity-multiplexing tradeoff (DMT); simultaneously wireless information and power transfer (SWIPT); dynamic decode-and-forward (DDF); energy harvesting;

D O I：

10.1109/LWC.2015.2476490

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We analyze the diversity-multiplexing tradeoff (DMT) of the dynamic harvest-and-forward (DHF) cooperation to clearly explain the achievable diversity order. Surprisingly, DHF cooperation with a relay that harvests energy from a wireless source achieves the same DMT as when the relay is connected to a fixed power supply, by supplying the energy harvesting (EH) period to be asymptotically small. For nontrivial EH period, however we show that the same DMT is achieved for a sufficiently small multiplexing gain (or corresponding large diversity gain), beyond which the DMT degrades.

引用

页码：633 / 636

页数：4

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