Abstract
Modern health care system is one of the most popular Wireless Body Area Sensor Network (WBASN) applications and a hot area of research subject to present work. In this paper, we present Reliability Enhanced-Adaptive Threshold based Thermal-unaware Energy-efficient Multi-hop ProTocol (RE-ATTEMPT) for WBASNs. The proposed routing protocol uses fixed deployment of wireless sensors (nodes) such that these are placed according to energy levels. Moreover, we use direct communication for the delivery of emergency data and multihop communication for the delivery of normal data. RE-ATTEMPT selects route with minimum hop count to deliver data which downplays the delay factor. Furthermore, we conduct a comprehensive analysis supported by MATLAB simulations to provide an estimation of path loss, and problem formulation with its solution via linear programming model for network lifetime maximization is also provided. In simulations, we analyze our protocol in terms of network lifetime, packet drops, and throughput. Results show better performance for the proposed protocol as compared to the existing one.
Highlights
Patient monitoring is emerging as an important application of embedded sensors network
We used MATLAB as a simulator to analyze the performance of proposed routing protocol
We presented an energy efficient routing algorithm for heterogeneous Wireless Body Area Sensor Networks (WBASNs)
Summary
Patient monitoring is emerging as an important application of embedded sensors network. Through WBASN a patient is constantly monitored, and in case of some critical situation an immediate action should be required These sensors can collect the physiological data and send to physician in a hospital through Metropolitan Area Network (MAN) or Local Area Network. In direct communication increase in temperature of sensor nodes may affect human body tissues. He discussed that storage delay (due to topological disconnections) and congestion delay increase overall delay in Multi-hop communication that can not be helpful for emergency services and makes Multi-hop communication not a best choice. By using energy management sensor nodes increase their transmission range and directly communicate with sink node for critical data delivery.
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