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Lightweight Hope Supervision of Wireless Body Sensor Network

Wireless body sensor networks (WBSNs) enable ubiquitous health monitoring of users during their everyday lives, at health sites, without restricting their freedom. This issue is often ignored in existing trust systems. We identify the security and performance challenges facing a sensor network for wireless medical monitoring and suggest it should follow a two-tier architecture. Based on such architecture, we develop an attack-resistant and lightweight trust management scheme named ReTrust. This paper also reports the experimental results of the Collection Tree Protocol using our proposed system in a network of which show that ReTrust not only can efficiently detect malicious/faulty behaviours, but can also significantly improve the network performance in practice. Keywords— Terms—Body Sensor Networks (BSNs), network performance, security, trust management.