Open AccessEIMAC: a multi‐channel MAC protocol towards energy efficiency and low interference for WBANs
Author(s) -
Li Nannan,
Cai Xuelian,
Yuan Xiaoming,
Zhang Yao,
Zhang Beibei,
Li Changle
Publication year - 2018
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2017.1422
Subject(s) - computer science , computer network , throughput , channel (broadcasting) , energy consumption , network packet , interference (communication) , efficient energy use , transmission (telecommunications) , collision , wireless , node (physics) , energy (signal processing) , telecommunications , computer security , engineering , statistics , mathematics , structural engineering , electrical engineering
Wireless body area networks (WBANs) can be widely used in wireless medical, motion detection etc. However, the existence of interference results in the increase in energy consumption and delay. To mitigate interference, nodes are prevented from using the same or similar spectrum resources by adopting multi‐channel media access control (MAC) protocols. Here, the authors propose a multi‐channel MAC protocol towards energy efficiency and low interference (EIMAC). Firstly, the states of each channel are clarified by the channel mapping mechanism. A novel channel selection strategy, considering the unfairness between high or low priorities, then is carried out. After that, considering the characteristics of node including residual energy, user priority, and data volume, the authors propose a low energy consumption enabled transmission mechanism. Lastly, the authors utilise a novel collision avoidance mechanism to reduce the collision probability of packets. Numerical results show that EIMAC significantly enhance the performance of WBANs in terms of delay, throughput, and energy consumption.