无线网络位置管理中的一种用户聚合算法

Polymerizing Strategy in Mobility Management of Wireless Network

随着用户数量的增加,位置管理策略对网络信令负荷和网络数据库访问负荷的影响将更加重要,好的位置管理策略可大大降低系统运行的开销,显著提高系统性能。该文充分利用终端用户之间的相关性,引入群首概念,提出一种位置管理的用户聚合算法。该算法在基本不改变网络结构和增加寻呼开销的同时,减少了位置更新的信令开销,并可与现有的各项优化算法同时使用,特别适用于军事集群中的战斗单位终端和交通工具上的用户终端的位置管理。仿真验证表明,该算法提高了系统的性能。

With users increasing, location management strategy will be more important to the load of network signal and database access, and a good strategy would decrease the cost remarkably. According to the relativity of the users, the concept of cluster head, introduced and a polymerizing strategy in mobility management is proposed, The strategy decrease the cost of location updating while the configuration of the network and the cost of paging would not change palpably, and can be used with the exiting arithmetic together. This strategy is very suitable for the unit of cluster and the user terminal on the vehicles.