Fast Multi-objective Approach for Energy Saving in Two-tiered Wireless Multimedia Sensor Networks

Abstract

With the growing demand for real time services in wireless sensor networks, quality of service based routing has attracted more attention. But offering some quality of service guarantee in sensor networks raises significant challenges. The network needs to cope with battery constraints, while providing quality of service guarantees. It is important to design such quality of service routing protocols that optimize multiple objectives. Higher power relay nodes can be used as cluster heads in a two-tiered wireless sensor networks and these relay nodes may form a network among themselves to route data towards the sink. In our paper, the quality of service guarantee is determined mainly by these relay nodes. Simulation results demonstrate that the proposed protocol outperforms network performance by optimizing multiple quality of service parameters and energy consumption.