World Journal of Engineering Research and Technology

*B. Mahesh M. E., T. Abinaya M. E. and S. Meena M. E.

ABSTRACT

Wireless sensor network (WSN) requires robust and energy efficient communication protocols to minimize the energy consumption as much as possible. Sensor nodes are resource constrained in term of energy, processor and memory and low range communication and bandwidth. However, the lifetime of sensor network reduces due to the adverse impacts caused by radio irregularity and fading in multi-hop WSN. Limited battery power is used to operate the sensor nodes and is very difficult to replace or recharge it, when the nodes die. This will affect the network performance. A Dual Cluster based resource sharing scheme is proposed as a solution for this problem. The proposed scheme extends ELC algorithm and enables multi-hop transmissions among the clusters by incorporating the selection of cooperative sending and receiving nodes. The performance of the proposed system is evaluated in terms of energy efficiency and reliability. Simulation results show that tremendous energy savings can be achieved by adopting hard network lifetime scheme among the Dual Cluster clusters. Due to the limited energy and communication ability of sensor nodes, it seems especially important to design a routing protocol for WSNs so that sensing data can be transmitted to the receiver effectively. An energy-balanced routing method based on forward-aware factor (FAF-EBRM) is proposed in this paper. In FAF-EBRM, the next-hop node is selected according to the awareness of link weight and forward energy density.

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