Performance Analysis of Delay-Constrained Traffic in a Cognitive Radio Network With RF Energy Harvesting

被引：8

作者：

Bae, Yun Han ^{[1
]}

Baek, Jung Woo ^{[2
]}

机构：

[1] Sangmyung Univ, Dept Math Educ, Seoul 03016, South Korea

[2] Chosun Univ, Dept Ind Engn, Gwangju 61452, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2019年 / 23卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

Energy harvesting; Sensors; Radio frequency; Throughput; Markov processes; Receivers; Delays; Cognitive radio network; RF energy harvesting; timely-delivery probability; censored Markov chain; SLOTTED ALOHA; ACCESS;

D O I：

10.1109/LCOMM.2019.2947919

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We consider a cognitive radio network where a secondary user (SU) tries to opportunistically access the channel time unused by the primary users (PUs) to transmit real-time status update packets with delivery deadline. For the radio frequency (RF)- powered SU, the channel occupancy times of the PUs are opportunities to harvest energy, whereas the idle channel times are opportunities to transmit data. Thus, there is a balance characterizing the SU performance in terms of channel occupancy probability of the PUs. We investigate the timely-delivery probability of data packets for the RF-powered SU. Specifically, we reveal the impact of the PU's channel occupancy probability on the timely-delivery probability and packet sojourn time.

引用

页码：2177 / 2181

页数：5

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