Title: Multihop multibranch relaying with energy harvesting and adaptive transmit power for cognitive radio networks

Authors: Nadhir Ben Halima; Hatem Boujemâa

Addresses: College of Computer Science and Engineering in Yanbu, Taibah University, Madinah, 42353, Saudi Arabia ' Higher School of Communications of Tunis, COSIM Research Laboratory, Route de Raoued Km 3.5, 2083, El Ghazala, Ariana, Tunisia

Abstract: This paper provides the packet error probability (PEP) and throughput of cognitive radio networks (CRN) with energy harvesting (EH) and adaptive transmit power (ATP). Multihop multibranch relaying is considered and only the best amplify and forward (AF) branch is activated. Our analysis is valid forEHsystem using harvested energy from radio frequency (RF) signals. The powers of secondary nodes are adaptive so that interference to primary receiver PR is lower than interference threshold I. We also choose the harvesting duration to enhanced the end-to-end (e2e) throughput.

Keywords: CRN; cognitive radio networks; energy harvesting; adaptive power; multihop multibranch relaying.

DOI: 10.1504/IJSNET.2019.102188

International Journal of Sensor Networks, 2019 Vol.31 No.2, pp.111 - 118

Received: 28 May 2019
Accepted: 29 May 2019

Published online: 24 Aug 2019 *

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