EETP-MAC: energy efficient traffic prioritization for medium access control in wireless body area networks
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EETP-MAC: energy efficient traffic prioritization for medium access control in wireless body area networks Fasee Ullah1 · Abdul Hanan Abdullah1 · Omprakash Kaiwartya1 Jaime Lloret2 · Marina Md Arshad1
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© Springer Science+Business Media, LLC 2017
Abstract Wireless body area network (WBAN) has witnessed significant attentions in the healthcare domain using biomedical sensor-based monitoring of heterogeneous nature of vital signs of a patient’s body. The design of frequency band, MAC superframe structure, and slots allocation to the heterogeneous nature of the patient’s packets have become the challenging problems in WBAN due to the diverse QoS requirements. In this context, this paper proposes an Energy Efficient Traffic Prioritization for Medium Access Control (EETP-MAC) protocol, which provides sufficient slots with higher bandwidth and guard bands to avoid channels interference causing longer delay. Specifically, the design of EETPMAC is broadly divided in to four folds. Firstly, patient data traffic prioritization is presented with broad categorization including Non-Constrained Data (NCD), Delay-Constrained Data (DCD), Reliability-Constrained Data (RCD) and Critical Data (CD). Secondly, a modified superframe structure design is proposed for effectively handling the traffic prioritization. Thirdly, threshold based slot allocation technique is developed to reduce contention by effectively quantifying criticality on patient data. Forth, an energy efficient frame design is presented focusing on beacon interval, superframe duration, and packet size and inactive period. Simulations are performed to comparatively evaluate the performance of the proposed EETP-MAC with the state-of-the-art MAC protocols. The comparative evaluation attests the benefit of EETP-MAC in terms of efficient slot allocation resulting in lower delay and energy consumption.
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Omprakash Kaiwartya [email protected]
1
Faculty of Computing, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor Bahru, Malaysia
2
Universidad Politecnica de Valencia, 46022 Valencia, Spain
Keywords Wireless body area network · Medium access control · Energy efficient · Traffic Prioritization
1 Introduction According to a recent report by the World Health Organization (WHO), the deadly diseases causing major deaths include heart attack, stroke, cancer, and respiratory, particularly in lower and middle income countries [1]. The aged people and patients with symptoms of these diseases require continuous monitoring of their abnormalities, and thus, cost of treatment and care is significantly higher for these diseases. Recent developments in Wireless Body Area Network (WBAN) attest the potentials in reducing the cost of treatment along with significant improvement in quality of patient care [2]. WBAN is an innovative technology which detects abnormalities of patient’s health condition well before life threatening situation [3]. It can instruct deaf and blind people as personal assistance [4,5], and monitors physical organs of sportsman on playground [6] and soldie
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