Medium Access Control Protocol for Wireless Sensor Networks in Harsh Environments with Directional Antennas

Abstract

In this paper, we consider the application of directional antennas to the hub node of a wireless sensor network (WSN), whilst retaining an omni-directional antenna on each sensor node, thus enhancing link performance without increasing the cost, complexity or energy consumption of the sensor nodes. We propose a simple medium access control (MAC) protocol for the hub node, based on the ALOHA protocol but designed to support multiple antennas on the hub, whilst the sensors retain the original ALOHA protocol. The analysis and simulation results show a 217% increase in throughput. Further possibilities of this architecture include increased range and/or the reduced sensor power consumption.

Metadata

Item Type:	Proceedings Paper
Authors/Creators:	Chau, A Dawson, J F https://orcid.org/0000-0003-4537-9977 Mitchell, P D https://orcid.org/0000-0003-0714-2581 Loh, T H
Dates:	Accepted: 24 August 2018 Published: 12 November 2018
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Electronic Engineering (York)
Depositing User:	Pure (York)
Date Deposited:	06 Sep 2018 11:50
Last Modified:	21 Mar 2024 23:31
Published Version:	https://doi.org/10.1049/cp.2018.1471
Status:	Published
Refereed:	No
Identification Number:	https://doi.org/10.1049/cp.2018.1471

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Medium Access Control Protocol for Wireless Sensor Networks in Harsh Environments with Directional Antennas

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