Abstract
In this paper, we have discussed various routing techniques of wireless body area network (WBAN), its challenges and comparison has been done based on various parameters. Due to advancement in wireless technology miniature sensor nodes with low power, lightweight, invasive or non-invasive are placed in, on or around the human body to monitor the health condition. Routing protocols plays an important role to improve the overall performance of network in terms of delay, throughput, network lifetime etc. and to improve the quality of services (QoS) in WBAN. Network lifetime and successfully transmission of data to the sink node are two main factors to design a routing protocol. Routing in WBAN is classified as QoS based, temperature aware, clusters based routing, postural based, cross layer network based routing etc. These categories are further divided into various protocols. This paper provides a review of some of the existing routing protocols of WBAN by describing their techniques, advantages and disadvantages. Also, the comparison of ATTEMPT (Adaptive Threshold based Thermal unaware Energy-efficient Multi-hop Protocol), SIMPLE (Stable Increased-throughput Multihop Protocol for Link Efficiency) and EERDT (Energy Efficient and Reliable Data Transfer) protocol has been done by simulating in MATLAB.
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