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移动自组织网络的动态拓扑特性给其分簇路由协议的设计带来了一定的挑战,而分簇算法作为分簇路由协议中重要的技术手段,如何建立一种有效稳定的分簇机制,对分簇路由协议的性能至关重要。本文在大规模网络环境下,提出一种稳定的分簇算法,并在此基础上提出一种分簇路由协议。为提高网络性能,该分簇路由协议簇间采用被动模式,簇内采用主动模式,并且各个分簇由簇首、网关、访客和普通簇节点组成。仿真结果表明:该分簇算法减少了簇的数量和簇成员在簇间的切换次数,提高了分簇的稳定性。相应的分簇路由协议较该类协议也降低了网络的平均端到端时延和平均路由开销,提高了数据包接收的成功率。
The dynamic topology of mobile ad hoc networks brings some challenges to the design of its clustering routing protocols. Clustering algorithm, as an important technical means in the clustering routing protocol, how to establish an effective and stable clustering mechanism, The performance of clustered routing protocols is crucial. In this paper, a stable clustering algorithm is proposed in large-scale network environment. On the basis of this, a clustering routing protocol is proposed. In order to improve network performance, the cluster routing protocol adopts passive mode among clusters and active mode within clusters, and each cluster consists of cluster heads, gateways, visitors and ordinary cluster nodes. Simulation results show that the clustering algorithm reduces the number of clusters and the number of cluster members switching between clusters and improves the stability of clustering. The corresponding clustering routing protocol also reduces the average end-to-end delay and average routing overhead of the network, and improves the success rate of data packet reception.