Relay selections for cooperative underlay CR systems with energy harvesting

Jia Ye, Zhedong Liu, Hui Zhao, Gaofeng Pan*, Qiang Ni, Mohamed Slim Alouini

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

30 引用 (Scopus)
Plum Print visual indicator of research metrics
  • Citations
    • Citation Indexes: 30
  • Captures
    • Readers: 8
see details

摘要

In this paper, we consider a cooperative underlay cognitive radio system in which one secondary user (S) transmits its data to a secondary receiver with the assistance of multiple relays. In the considered underlay spectrum sharing scenario, the transmit power levers at S and forwarding relays are adjusted simultaneously according to a given threshold interference power that the primary user can tolerate. We also consider that relays adopt threshold decode-and-forward relay scheme and harvest energy from the primary transmitter with finite energy storage capacity under time switching scheme. Three best relay selection (RS) schemes, optimal source-relay link with wireless energy harvesting (WEH), optimal relay-destination link with WEH and optimal source-relay-destination link with WEH schemes, are proposed and studied. Closed-form analytical expressions for the outage probability of these three best RS schemes are derived, respectively. Finally, our analytical results are verified by Monte-Carlo simulations.

源语言英语
文章编号8680686
页(从-至)358-369
页数12
期刊IEEE Transactions on Cognitive Communications and Networking
5
2
DOI
出版状态已出版 - 6月 2019
已对外发布

指纹

探究 'Relay selections for cooperative underlay CR systems with energy harvesting' 的科研主题。它们共同构成独一无二的指纹。

引用此

Ye, J., Liu, Z., Zhao, H., Pan, G., Ni, Q., & Alouini, M. S. (2019). Relay selections for cooperative underlay CR systems with energy harvesting. IEEE Transactions on Cognitive Communications and Networking, 5(2), 358-369. 文章 8680686. https://doi.org/10.1109/TCCN.2019.2908900