Abstract:
Traffic collision is one of the main reasons for the excessive delay and higher energy consumption in Wireless Body Area Networks (WBANs). WBAN is an emergent healthcare technology that has been designed for urgently monitoring patients. To transmit patients' physiological data to the healthcare center, it is very important to design a delay tolerant and energy efficient Medium Access Control (MAC) protocol. Medical data are time-bounded; hence any delay in transmission may impede patients' life. Hence, in this research, we propose a data collision avoidance and delay-energy efficient MAC protocol which is designed considering the Contention Access Phase (CAP) of IEEE 802.15.4 based MAC superframe structure and also Exclusive Access Phase (EAP) of IEEE 802.1.5.6 based MAC superframe structure. We experiment with the proposed scheme using the Castalia simulator and compare the results using different scenarios. First of all, we compare the delay and energy efficiency considering different numbers of nodes ranging from 1 to 12 nodes. Secondly, the results are compared with data of various sizes ranging from 16 to 255 bytes. In both cases, results are verified for both IEEE 802.15.4 and IEEE 802.1.5.6 standards and it is found that delay and power consumption is much lower in EAP enabled IEEE 802.15.6 based MAC protocol. In addition, in the third scenario, we consider five different types of data with different priority levels and the experiment result shows that data with the higher priority level consumes lower energy and minimum delay than that of data with lower priority levels in IEEE 802.15.6 based collision avoidance MAC protocol. Finally, we compared the proposed EAP enabled IEEE 802.15.6 based MAC protocol with conventional IEEE 802.15.6 and state-of-the-art i-MAC protocol. The performance comparison is done for both delay and energy consumption. The results show that our proposed MAC model performs better than that of the existing protocol and standard.
Page(s):
2480-2496
DOI:
DOI not available
Published:
Journal: Journal of Theoretical and Applied Information Technology, Volume: 100, Issue: 8, Year: 2022
Keywords:
energy
,
MAC
,
Delay
,
Traffic Collision
,
WBAN