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Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation

Herein, we propose a hybrid multi-channel medium access control (HM-MAC) protocol for wireless body area networks (WBANs) that mitigates inter-WBAN interference significantly. In HM-MAC, a superframe consists of a random access phase and a scheduled access phase. That is, a carrier sensing multiple...

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Autores principales: Le, Thien Thi Thanh, Moh, Sangman
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982814/
https://www.ncbi.nlm.nih.gov/pubmed/29710790
http://dx.doi.org/10.3390/s18051373
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author Le, Thien Thi Thanh
Moh, Sangman
author_facet Le, Thien Thi Thanh
Moh, Sangman
author_sort Le, Thien Thi Thanh
collection PubMed
description Herein, we propose a hybrid multi-channel medium access control (HM-MAC) protocol for wireless body area networks (WBANs) that mitigates inter-WBAN interference significantly. In HM-MAC, a superframe consists of a random access phase and a scheduled access phase. That is, a carrier sensing multiple access with collision avoidance (CSMA/CA) phase and a time division multiple access (TDMA) phase are included in a superframe. The random access phase allows higher-priority users to transmit data packets with low latency and high reliability. The retransmission of data packets is also performed in the random access phase. The periodic data are transmitted in the scheduled phase, resulting in no contention and high reliability. A channel selection algorithm is also proposed to avoid collision between neighboring WBANs. The HM-MAC protocol allows multiple transmissions simultaneously on different channels, resulting in high throughput and low collision. The sensor nodes update idle channels by listening to the beacon signal; consequently, the sensor nodes can change the working channel to reduce inter-WBAN interference. According to our simulation results, HM-MAC achieves a higher packet delivery ratio and higher throughput with lower energy consumption than the conventional scheme in multi-WBAN scenarios. HM-MAC also causes lower end-to-end delays for higher-priority users.
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spelling pubmed-59828142018-06-05 Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation Le, Thien Thi Thanh Moh, Sangman Sensors (Basel) Article Herein, we propose a hybrid multi-channel medium access control (HM-MAC) protocol for wireless body area networks (WBANs) that mitigates inter-WBAN interference significantly. In HM-MAC, a superframe consists of a random access phase and a scheduled access phase. That is, a carrier sensing multiple access with collision avoidance (CSMA/CA) phase and a time division multiple access (TDMA) phase are included in a superframe. The random access phase allows higher-priority users to transmit data packets with low latency and high reliability. The retransmission of data packets is also performed in the random access phase. The periodic data are transmitted in the scheduled phase, resulting in no contention and high reliability. A channel selection algorithm is also proposed to avoid collision between neighboring WBANs. The HM-MAC protocol allows multiple transmissions simultaneously on different channels, resulting in high throughput and low collision. The sensor nodes update idle channels by listening to the beacon signal; consequently, the sensor nodes can change the working channel to reduce inter-WBAN interference. According to our simulation results, HM-MAC achieves a higher packet delivery ratio and higher throughput with lower energy consumption than the conventional scheme in multi-WBAN scenarios. HM-MAC also causes lower end-to-end delays for higher-priority users. MDPI 2018-04-28 /pmc/articles/PMC5982814/ /pubmed/29710790 http://dx.doi.org/10.3390/s18051373 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Le, Thien Thi Thanh
Moh, Sangman
Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title_full Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title_fullStr Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title_full_unstemmed Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title_short Hybrid Multi-Channel MAC Protocol for WBANs with Inter-WBAN Interference Mitigation
title_sort hybrid multi-channel mac protocol for wbans with inter-wban interference mitigation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982814/
https://www.ncbi.nlm.nih.gov/pubmed/29710790
http://dx.doi.org/10.3390/s18051373
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