Priority Based Fault Tolerant Technique for Wireless Body Area Networks (WBANs)


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Abstract


In Wireless Body Area Networks (WBANs), fault tolerance and consistent data transmission become central objectives as it transmits extremely sensitive data. In this paper, we propose a priority based fault tolerant technique for WBANs. The technique presents hierarchical architecture, where local nodes are connected to their cluster heads (CHs), each CH is interconnected and connected with a Wireless Local Gateway (WLG) and finally WLG to Hospital Gateway (HG). Each local sensor collects biological, ecological and node information, which are collectively grouped as fault related information. Each node is assigned with priority considering fault related information. Nodes with high priority are processed foremost. Priority is assigned to measure the fault tolerant level of individual nodes. Further, node and CH level faulty node detection and recovery schemes are also proposed. Our technique provides reliability and fault tolerance at hand. The efficiency of our technique is proved through simulation results.
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Keywords


Wireless Body Area Networks (WBANs); Cluster Heads (CHs); Wireless Local Gateway (WLG); Hospital Gateway (HG)

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