Spectral Efficiency of Energy Harvesting Random Cognitive Radio Networks in Dual-slope Model

Rakiba Rayhana,Saifur Sabuj,Aldrin Bobby

doi:10.4108/eai.14-1-2019.160388

Abstract

This research article evaluates the performance of an energy harvesting random cognitive radio network employing a dual-slope path-loss model in terms of spectral efficiency. It derives the mathematical expression of spectral efficiency by means of stochastic geometry for secondary receivers presen

Highlights

The usage of wireless devices like notebooks, tablets, phablets and cellular phones has been escalated these days
Cognitive radio (CR) network together with wireless energy harvesting technology is a probable solution to gathering energy from authorized and unauthorized radio frequency (RF) sources [2] allowing the secondary users meaning the ones who are unauthorized to keep the energy in reserve for recharging batteries
We assume that the downlink scenario of a cognitive radio (CR) network consists of a primary transmitter (PT) as well as several primary receivers (PRs), secondary transmitters (STs) and secondary receivers (SRs)

Summary

Introduction

The usage of wireless devices like notebooks, tablets, phablets and cellular phones has been escalated these days. One of the most vital components of these devices is the battery which needs to be energized and substituted at regular intervals. The manifestation of wireless energy transfer from several radio frequency (RF) sources was initially developed during 1899 by Nicola Tesla [1]. Base stations (BSs) found in mobile networks are not considered as beneficial sources because they extract a very small amount of energy. Cognitive radio (CR) network together with wireless energy harvesting technology is a probable solution to gathering energy from authorized and unauthorized RF sources [2] allowing the secondary users meaning the ones who are unauthorized to keep the energy in reserve for recharging batteries. In earlier work [3], investigation on harvested energy, outage probability,

Network Model

Path-loss Model

Time Slot Structure

Design of Receiver

Spectral Efficiency

Numerical Studies

Findings

Conclusion