Ad hoc网络中的一种混合式拓扑控制方法

A Hybrid Topology Control Approach in AD HOC Network

A d hoc网络的拓扑对于网络性能有很大的影响,密度高的拓扑会因干扰的加大而降低容量,稀疏的拓扑又会因为链路失效和网络分割而易受到攻击。现有的拓扑控制算法一般使用的都是纯粹的集中式或分布式方法。这种新的混合式的拓扑控制结构结合了集中式和分布式算法两者的优点,通过调整节点的发送功率,能够保证网络拓扑实现两连通,提高了网络的性能。

The topology of an ad hoc network has a significant impact on its performance in that a dense topology may induce high interference and low capacity,while a sparse topology is vulnerable to link failure and network partitioning. Existing topology control algorithms utilize either a purely centralized or a purely distributed approach. This paper describes a hybrid topllogy control framework. The algorithm combines both centralized and distributed approach,achieves 2-connectivity and improves the performance of the networks.