Abstract:

As to the process of hierarchical packet forwarding in wireless sensor network, clustering and routing are two well-known optimization problems. To effectively extend the network lifetime, an energy-aware hierarchical packet forwarding mechanism is proposed. By introducing the particle swarm optimization, the proposed mechanism can dynamically select the optimal cluster head (CH) and forwarding routing. In particular, during the optimization process, particle can constantly be evolved to intelligently search the optimal CHs and routing by combining with the multi-objective function. Owing to the hierarchical deployment of network structure with a low complexity pattern, energy efficient packet forwarding can be achieved. The numerical results demonstrate that the proposed mechanism compared with the existing mechanism, can significantly enhance the energy utilization, improve the network performance, and prolong the network lifetime.