FLOW BALANCED ROUTING IN WIRELESS SENSOR NETWORKS

Ashok Kumar.S, Vanitha.V

Abstract: Wireless Sensor Networks (WSNs) consists of a large number of sensor nodes which are densely deployed. The clusters are formed based on the overlapping degree and residual energy of sensor and then hierarchical backbone is constructed with sink at the top. Flow Balanced Routing (FBR) overcomes the problem of imbalance in the energy consumption of Cluster Head(CH) nodes by sending the data in multiple paths, thereby increasing the network lifetime. If the data is sent in a single path to the sink, then the energy of the CH nodes will exhaust in that path. To avoid this, the data is sent in multiple path, by which the energy consumption of all the CH node are balanced. This approach enhances the lifespan of CH nodes, thereby increasing the network lifetime but it increases the delay and decrease the throughput. Since the CH’s at higher level have large amount of data than CH’s at lower level, the wake-up time of CH’s at higher level is set to be higher than the CH’s at lower level, which decrease the delay and also increases the network lifetime. Simulation results show that the proposed algorithm drastically increases the network lifetime and also decrease the end-toend delay

Keywords: Clustering, Delay, Multiple Path, Network lifetime, Wake-up time

DOI: https://doi.org/10.15623/ijret.2014.0319077