一种GRID路由协议的网关选取方法  

Method for GRID Routing Protocol Gateway Selection

作　　者：肖瑶[1] 甘忠辉[1] 刘芸江[1] 徐雪飞[1] 

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077

出　　处：《电视技术》2014年第1期111-114,共4页Video Engineering

基　　金：陕西省自然科学基金项目(SJ08-2T06)

摘　　要：原GRID路由协议的网关选取方法单一,不能适应节点高速随机移动的特征。提出基于结构熵的网关选取方法,定义了栅格内各节点的结构熵,利用节点的结构熵增量作为网关选取的主要准则,并改进了原GRID路由协议的网关选取方法。仿真结果表明,随着栅格节点密度的增加,改进型GRID路由协议使端到端平均时延下降0.2 s,平均跳数下降2跳次,但在一定程度上增加了路由开销。为今后路由协议的网关选取方法提供一种新的思路。Since the original approach to the selection of gateway of the GRID routing protocol is too simple to adapt to the feature of node＇ s moving randomly at high speed. In this paper, a new approach is put forward based on structural entropy, structural entropy of each node in the grid is definod, and the structural entropy increment is set as the main criterion of the selection of gateway. In addition, the original approach has also been improved. According to the simulation results, with the increase of density of GRID ,lode, the new GRID routing protoeol makes a decrease of 0.2 s in the average end-to-end delay and 2 jump times in the mean-hops while to some extend an increase of routing-cost, whieh provides a new way for selection of gate- way of the GRID routing protocol in the future.

关 键 词：移动AD HOC网络 GRID路由协议 网关节点 结构熵 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]