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摘要
It is known to all that Wireless Sensor Networks (WSN) is plagued by the energy shortage caused by the environment factors. In this paper, a novel energy-saving algorithm named COLD is proposed. Which is based on ladder diffusion and comprehensive optimization. In COLD, firstly, ladder diffusion is introduced to decide the sink nodes number. Then, the best nodes will be selected under comprehensive optimization strategy, which residual energy of the node, communication costs and average energy are considered together. Finally, In the routing selection phase, both distance and the difference of the angle will be taken into consideration. A non-uniform clustering was used to deal with “hot area”problem. Experimental results show that the proposed COLD has better performance than other related routing algorithms in several aspects, such as life cycle, the average residual energy of whole nodes, and energy consumption balance.
- 出版日期2018
- 单位华中师范大学
