Cooperative transmission in energy harvesting-based cognitive D2D networks

被引：0

作者：

Yuanyuan Yao

Sai Huang

Changchuan Yin

机构：

[1] Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Network, Beijing Key Laboratory of Network System Architecture and Convergence

[2] Beijing University of Posts and Telecommunications,Key Laboratory of Universal Wireless Communications Ministry of Education Wireless Technology Innovation Institute (WTI)

来源：

Wireless Networks | 2018年 / 24卷

关键词：

Cooperative network; Energy harvesting; Network throughput; Power splitting; Stochastic geometry;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A cognitive device-to-device (D2D) network with D2D transmitters (DTs) that harvest radio-frequency energy from the primary transmitters (PTs) is investigated. A novel D2D transmitter-assisted cooperative (DTAC) protocol is proposed, in which a group of DTs that have no transmission opportunity act as potential relays to improve the communications of the primary network. The outage probability of the primary networ is characterized and used to make comparisons between the direct link and the cooperative link which adopts selection combining and maximal-ratio combining (MRC) schemes at the primary receivers. The cooperative link with MRC scheme improves the outage performance of the primary network with direct link, as much as 93%. The active probability of the DTs and the outage probability are derived, and the D2D network throughput is maximized by finding an optimal transmission power for the PTs. Simulation results are provided to validate the theoretical analysis.

引用

页码：2579 / 2588

页数：9

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