一种具有分层结构的Ad Hoc网络地址自动配置机制

A hierarchical address auto-configuration scheme for Ad Hoc network

提出了一种具有分层结构的Ad Hoc网络地址自动配置机制。在该机制中,群首节点负责维护全网节点的地址使用情况表,处理网络的分割与合并;新入网节点通过代理节点向群首节点申请地址;使用蚁群算法优化选择代理节点,利用地址表备份机制减少群首节点失效的影响。与MANET Conf协议和ODACP协议的仿真比较结果表明,该方法能够在更短的时间内、使用更少的通信开销为节点分配地址,并且在网络规模增大时,该方法的地址自动配置性能并没有急剧下降,具有更好的可扩展性。

A hierarchical structure scheme was proposed for dynamic allocation of addresses in Ad Hoc networks. In this scheme, new nodes obtained IP addresses from the leader node via agent nodes. Ant colony algorithm was used to optimize the selection of the agent node. The problem of leader failure was resolved by backing up the address in used table in some nodes. MANET Conf approach and ODACP approach were compared with the approach proposed. The simulation results show that the scheme can ensure the timely assignment of unique addresses with lower overhead; the performance of simulation system by proposed scheme does not descend rapidly with increased network size, which indicates that the scheme has better scalability in both latency and overhead.