Throughput optimization of multi-hop and multi-path cooperation in WPSNs with hardware noises

Lina Yuan, Huajun Chen and Jing Gong

International Journal of Distributed Sensor Networks, 2021, vol. 17, issue 6, 15501477211024838

Abstract: This paper proposes a novel multi-path and multi-hop wireless powered sensor network in case of hardware impairment, constituting an energy node, one source node, single sink node, and a series of distributed relay sensor nodes, where the energy node transmits wireless energy to all terminals in the first stage, and the relay sensor nodes relay the information of the source node to the sink node in the second stage. There exists M available paths between the source node and sink node, one of which is chosen for serving source-sink communication. To enhance the minimum achievable data rate, we propose a multi-hop communication protocol based on time-division-multiple-access and an optimal throughput path algorithm. We formulate the time allocation optimization problem about energy and information transmission of the proposed multi-hop cooperation, and confirm through abundant simulation experiments that the proposed scheme can availably improve user unfairness and spectral efficiency, and thus enhance its throughput performance.

Keywords: Wireless powered communication network; energy imbalance; energy beamforming; throughput performance; user unfairness (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:17:y:2021:i:6:p:15501477211024838

DOI: 10.1177/15501477211024838

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