面向群组移动的轻型位置服务研究

针对现实应用中大规模MANET网络节点呈现的群组移动特性,提出了面向群组移动的轻型位置服务协议GHLLS。G-HLLS协议将HLLS协议框架与分簇机制相结合,从而保证位置更新及请求机制适应群组移动特性。基于OPNET的仿真实验,从负载、服务成功率、存储开销多个方面对G-HLLS协议性能进行了分析,验证了G-HLLS协议在大规模群组移动网络中表现出的优越性能。

Research on group mobility oriented HLLS

Group mobility oriented HLLS （G-HLLS） is proposes in this paper, according to the group mobility property of large-scale MANET nodes in many actual applications. G-HLLS combines the protocol frame of history information based light lo- cation service （HLLS） with clustering mechanism to ensure the location update and request mechanism to adapt the property of group mobility and reduce the storage cost of HLLS. With the simulation based on OPNET, the protocol performance of G-HLLS is analysed in terms of loading, service success ratio, overhead and storage costs. The resulsts show that G-HLLS has good scal- ability in MANET with group mobility.