دانلود رایگان مقاله انگلیسی مسیریابی خوشه بندی بر اساس برنامه ریزی عدد صحیح مختلط برای شبکه های حسگر بی سیم ناهمگن - الزویر 2018

Abstract:

Heterogeneous wireless sensor network has the advantages of completing complex communication tasks and is widely applied to military, medical, environmental, industrial and commercial, family life and so on. But heterogeneous nodes are expensive, it is necessary to consider how to balance the energy consumption and prolong network lifetime by deploying minimum number of heterogeneous nodes. In this paper, a clustering routing algorithm for heterogeneous wireless sensor network (CHRA) is presented to balance energy and prolong the network lifetime. The proposed routing algorithm computes the optimal number of heterogeneous nodes and selects the cluster heads per round. In CHRA, all common nodes are divided into two kinds. The first kind includes the nodes which transmit data to Sink by heterogeneous node and the others belong to the second kind. Furthermore, the common nodes are clustered per round by LEACH-C. The performance analysis and numerical results show that the proposed routing algorithm can availably prolong network lifetime and stable period. And it also can balance the energy consumption significantly.

6 Conclusion and future work

In this paper, the clustering routing algorithm for wireless sensor network (CHRA) is presented to balance energy and prolong network lifetime. We consider the combination of the heterogeneous nodes and cluster heads. Firstly, the model of optimal placement of heterogeneous nodes is built. Secondly, a clustering routing algorithm for wireless sensor network (CHRA) is presented, which consists of the heterogeneous routing algorithm for wireless sensor network (HRA) and a cluster heads selecting algorithm by LEACH-C. Thirdly, the performance of our proposed routing algorithm and some previous typical routings is evaluated via extensive experiments. The results indicate that our proposed routing algorithm can availably prolong network lifetime and stable period. And it can also balance the energy consumption significantly. In the future work, it is worth studying the optimal placement of heterogeneous nodes with limited energy and cluster heads of mobile Sink or multi-Sinks in wireless sensor network.