Abstract
Since the nodes of wireless sensor networks are in the condition of a highly-limited and unreplenishable energy resource such as battery power, computation, and storage space, the energy efficiency is the most important key- point of the network routing designing. In this paper, A novel routing algorithm which combines with hierarchical routing and geographical routing is proposed. Based on the hierarchical network architecture, the process of forwarding packets between the source nodes in the target region and the base station consists of two phases-inter- cluster routing and intra-cluster routing, a greedy algorithm is adopted in the process of the inter-cluster routing and an multi-hop routing algorithm based on the forwarding restriction angle is designed for the intra- cluster routing. The analysis and simulation results show that our routing algorithm has better performance in terms of energy consumption and delay, it is suitable for the data transmission in a high-density wireless sensor network.
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