基于邻居节点的拓扑控制算法研究与仿真

摘要

Topology control is an important mechanism to improve energy efficiency and network capacity in mobile ad hoc network. For the characteristics of the ad hoc network, topology variable, limited bandwidth and energy, this paper briefly introduces a topology control algorithm that could save node energy consumption, and effectively improve the lifetime of the network. Through the simulation of the K-Neigh topology control algorithm which is based on the number of neighbors, this paper studies the impact of k values on the power consumption and network performance （ including the throughput, packet drop rate, delay and so on）. The results show that appropriate value of k can balance the power consumption and the network performance,and enhance the robustness with the K-Neigh topology control.%拓扑控制是移动自组织网络提高网络能量利用率和网络容量的一种重要机制。针对移动自组织网络拓扑易变、带宽和能量有限等特点,简要介绍了一种节约节点能耗,有效提高整个网络寿命的拓扑控制算法;通过对基于邻居个数的拓扑控制协议K-Neigh算法的仿真,研究了不同k值的选择下拓扑控制对节点功耗和网络性能（包括吞吐量、丢包率和时延等）的影响。其结果表明选择合适的k值可以取得节点功耗和网络性能的平衡,而且经过K-Neigh拓扑控制后的网络具有很好的鲁棒性。