Buffer-aided successive relay selection scheme for energy harvesting IoT networks

Shabbir, Ghulam, Ahmad, Jamil, Raza, Waseem, Amin, Yasar, Akram, Adeel, Loo, Jonathan ORCID: https://orcid.org/0000-0002-2197-8126 and Tenhunen, Hannu (2019) Buffer-aided successive relay selection scheme for energy harvesting IoT networks. IEEE Access, 7. pp. 36246-36258.

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In this paper, we analyze the impact of buffer-aided full-duplex successive relay selection schemes with energy harvesting capability of relay nodes in amplifying and forward (AF) and decode and forward (DF) relaying environments for the Internet of Things networks. We propose to select a relay pair based on the energy harvested and signal strength at relay and destination to receive and transmit in the same time slot, respectively. Contrary to the previous relay pair selection schemes which are based on the signal strength only and cause the relay overuse problem, the proposed scheme ensures the balanced use of energy of relay nodes. The proposed relay selection scheme is implemented with the time switching (TS) and power splitting (PS)-based energy harvesting models in AF and DF relaying environments separately. Furthermore, we derive the closed-form expression of the outage probability and average throughput for both the TS and PS approaches in the DF and AF relaying modes. We compare the proposed relay selection scheme with the S-MMRS scheme and prove that the proposed scheme significantly reduces the outage probability and improves the average throughput. Furthermore, the analytical findings are reinforced with the extensive Monte Carlo simulations.

Item Type: Article
Identifier: 10.1109/ACCESS.2019.2901734
Additional Information: © 2019, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Keywords: Relays, Energy harvesting, Resource management, Power system reliability, Probability, Diversity methods, Signal to noise ratio
Subjects: Computing > Systems > Computer networking
Related URLs:
Depositing User: Jonathan Loo
Date Deposited: 22 May 2019 15:14
Last Modified: 06 Feb 2024 16:00
URI: https://repository.uwl.ac.uk/id/eprint/6102


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