Energy efficient reliable transport protocol for re-tasking in wireless sensor network

Wireless sensor network is a special form of wireless networks dedicated to surveillance and monitoring applications. Reliability in wireless sensor network is application specific. That is the specific form of reliability might change from application to application. Our idea is to generate a reliability based transport protocol that is customizable to meet the needs of emerging reliable data applications in sensor networks and is also adaptive when the nodes are highly mobile. In our approach, clusters are formed for minimizing energy dissipation. Nodes maintain a neighbor list to forward data. If a node senses any topological change, it can trigger updates to its neighbor list and it can spontaneously re-send all of its data thus providing reliable transport even in mobility conditions. This approach has five phases namely-setup, relaying, relay initiated error recovery, selective status reporting and node supervising. Simulation results reveals that the proposed approach outperforms the existing related techniques and is highly responsive to the various errors and mobility conditions experienced in sensor networks.