Design of Reconfigurable and Scalable WBAN for Secure Communication using Rehashing Key Agreement Protocol

Wireless Body Area Network (WBAN) is a special purpose network of sensor nodes which can be inserted inside or out-side the body for monitoring health services. WBAN in medical field, where large number of patient’s conditions could be continuously monitored, alarms the person who wears sensors about auto medication during emergency condition. The security, handover, sensor node reconfiguration are the major challenges in WBAN. Previously existing works were not able to give an effective solution for security, handover and reconfiguration. This paper implements Rehashing key agreement protocol for secure communication between user and Medical Service Provider (MSP). To reconfigure sensor nodes by using WBAN controller that enables fault tolerance is implemented. Round Trip Time (RTT) is calculated for handover process. Finally, Decision Management Unit (DMU) performs decision making with Parameter based clique scheduling to reduce the computation time. The simulation of the proposed work is implemented using NS3 and the results shows that our proposed work satisfactorily fulfills the overall system requirements.