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This paper presents an online solution for fault detection and isolation of erroneous node in body sensor networks to provide sustained delivery of services despite encountered perturbations. This work adopts a multi-tier telemedicine system where a star topology with the sensor nodes sending their data to Personal Digital Assistant (PDA) for data fusion is(More)
This paper proposes a distributed solution for fault diagnosis in wireless sensor networks (WSN). Fault diagnosis is achieved by comparing the heartbeat sequence number generated by neighbouring nodes and dissemination of decision made at each node. The proposed protocol considers channel error where the channel is modelled as two state Markov model.(More)
This paper proposes an adaptive online distributed solution for fault diagnosis in wireless sensor networks (WSNs). Fault diagnosis is achieved by comparing the heartbeat message generated by neighboring nodes and dissemination of decision made at each node. Time redundancy is used to detect the intermittent faults since an intermittent fault will not occur(More)