Tarneem O. Barayyan, Arshpreet Kaur and Shilpa Shilpa
Rapid advancements in wireless sensor network have significantly supported the wireless body area networks (WBAN). In WBAN, especially in medical application, the energy efficiency of the sensor nodes is critical in the Intra-body communication level. In this case, the communication occurs between the sensor nodes (placed inside the human tissue) and sink node (placed on the human skin). Thus, replacing the battery of these sensor nodes is challenging. Several studies in Intra-body communication have focused on reducing the energy consumption by decreasing the distance required to transmit the sensed data. However, the stability of the system (overall lifetime of the system) is not achieved due to the variation in the lifetime of the sensor nodes. Herein, some sensor nodes act as relay nodes. These relay nodes are responsible for sensing, receiving, and aggregating the sensed data from the neighboring sensor nodes, and further sending it to the sink node. The present study describes a unique approach to achieving an energy-efficient routing protocol that guarantees a prolonged lifetime of the sensor, thereby stabilizing the system. Moreover, the peer-to-peer communication between the sensor and sink nodes is also investigated with respect to the mobility model. In conclusion, this study aims to remove the burden from sensor nodes by using multiple sink nodes in order to achieve the shortest distance of communication between the sensor and sink nodes, which could prolong the lifetime of sensor nodes and the overall stability of the system.