无线携能通信中一种能效优先的缓存队列机制中继选择方案

doi:10.11959/j.issn.1000-0801.2018111

Telecommunications Science ›› 2018, Vol. 34 ›› Issue (3): 67-75.doi: 10.11959/j.issn.1000-0801.2018111

• Research and development • Previous Articles Next Articles

Energy-efficiency based buffer-aided relay selection scheme in SWIPT

Xinlong HONG,Xiaorong XU(),Yingbiao YAO

Hangzhou Dianzi University,Hangzhou 310018,China

Revised:2018-02-02 Online:2018-03-01 Published:2018-04-02
Supported by:
The Open Project of “Electronic Science and Technology” Zhejiang First Class Discipline (Class A): “Research on buffer-aided relay selection and resource scheduling strategies in SWIPT”(GK178800207001/024);Excellent Backbone Teacher Support Program in Hangzhou Dianzi University in 2017,The Key Innovation Research Foundation for Graduate Students in School of Communication Engineering,Hangzhou Dianzi University: “Research on buffer-aided relay selection schemes in SWIPT”(GK178800208018);Excellent Backbone Teacher Support Program in Hangzhou Dianzi University in 2017,The Key Innovation Research Foundation for Graduate Students in School of Communication Engineering,Hangzhou Dianzi University: “Research on buffer-aided relay selection schemes in SWIPT”(2016YCGC009)

Abstract

Abstract:

Aiming at the problem of buffer-aided half-duplex (HD) relay selection in simultaneous wireless information and power transfer(SWIPT) with energy constraint,energy-efficiency priority based buffer-aided relay selection scheme in SWIPT was investigated.Moreover,SWIPT system energy efficiency was studied,and an appropriate mathematical model was constructed to perform energy efficiency based buffer-aided optimal receive/transmit relay selection in SWIPT.Numerical results show that the proposed scheme effectively reduces SWIPT outage probability and achieves the tradeoff between energy efficiency and outage performance in buffer-aided SWIPT.

Key words: SWIPT, buffer-aided relay selection, energy-efficiency priority, energy harvesting, outage performance

CLC Number:

TP393

Xinlong HONG,Xiaorong XU,Yingbiao YAO. Energy-efficiency based buffer-aided relay selection scheme in SWIPT[J]. Telecommunications Science, 2018, 34(3): 67-75.

Figures/Tables 9

References 17

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第一阶段T/2	第二阶段T/2
R从S收集能量（(1-λ_i)P_S）	R用收集到的能量向D传输信息
S向D传输信息（λ_iP_S）

状态	S1	S2	S3	S4	S5	S6	S7	S8	S9
L₁L₂	00	01	02	10	11	12	20	21	22

Energy-efficiency based buffer-aided relay selection scheme in SWIPT

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