RELIABLE AND ENERGY EFFICIENT WBAN THROUGH ON-DEMAND HANDOVER PROTOCOL

Abstract

In recent years, innovation in technological development makes human work easy. More specifically the development in the field of medical is unimaginable. Nowadays medical treatments were enhanced and more medical equipments were developed to detect the disease and also to monitor the human health. But the patient needs to be stayed in the hospital until they recover from the ill. Some health issues may take even couple of months to few years. In that case Wireless Body Area Networks provide facility to make the patient stay in the home by using wearable body sensors. These sensors can be fixed inside the human body or outer surface of the body to observe the body conditions. These wearable sensors are small in size and they were designed to carry easily. Since the body sensor node is small, the battery capacity is also very less. So, the effective utilization of the energy is much important for avoiding the replacement of battery very often. At the same time patients can move freely inside their home, during that time there may be chance for obstacles like wall and furniture that act as a barrier for the communication between the sensor node and access point. Therefore the data from the sensor node is being transmitted through other access point to increase the reliability. But the number of times handover the signal from one access point to other access point is also consumes more energy. So the proposed On-Demand Handover Protocol will establish the connection with new access point only if the data is very much essential. Otherwise sensor will omit the data and continue to sense the value without considering the signal strength of the existing connection. This proposed On-Demand Handover Protocol endow with energy efficient and reliable network.