东北大学学报（自然科学版）

东北大学学报（自然科学版） ›› 2013, Vol. 34 ›› Issue (11): 1542-1545.DOI: 10.12068/j.issn.1005-3026.2013.11.006

• 信息与控制 • 上一篇    下一篇

基于地理位置预测的ETT判据路由协议

沙毅1，徐双1，孙晓微1，张志伟2   

  1. (1东北大学信息科学与工程学院，辽宁沈阳110819；2中国科学院国家天文台，北京100012)
  • 发布日期:2013-07-09
  • 通讯作者: 沙毅
  • 作者简介:沙毅(1959-)，男，江苏无锡人，东北大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(10878017).

ETT Metric Routing Protocol Based on Location Prediction〓

SHA Yi1， XU Shuang1， SUN Xiaowei1， ZHANG Zhiwei2   

  1. 1 School of Information Science & Engineering， Northeastern University， Shenyang 110819， China； 2 National Astronomical Observatories， Chinese Academy of Sciences， Beijing 100012， China.
  • Published:2013-07-09
  • Contact: SHA Yi
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摘要： 提出了基于节点位置预测的路由算法AODV-LP-ETT.该算法通过计算出在通信范围内的节点间链路的ETX值和带宽值进行路由选择，采用灰色预测模型预测节点下一时刻的地理位置，通过判断节点间的距离是否处于彼此的通信范围之内来决定是否使用ETT路由判据.QualNet仿真结果表明，与AODV路由协议相比AODV-LP-ETT路由协议提高了网络吞吐量，提高了分组投递率，降低了平均端到端延时及平均抖动，改善了网络整体性能.

关键词: AdHoc网络, 路由, 灰色预测, ETT判据, 地理位置

Abstract: A routing algorithm (AODVLPETT ) which is based on the location prediction was presented. Route selection was made by calculating the ETX(expected transmission count) value and bandwidth of links between nodes in the communication range. The following node location was predicted using the grey prediction model.Whether or not to use the ETT(expected transmission time) routing metric depended on whether the distance between the adjacent nodes was less than the communication radius. The QualNet simulation results show that， compared with the AODV， the overall performance of the network was improved with the AODVLPETT， what′s more， the network throughput and packet delivery rate were also improved. In addition， the average endtoend delay and average jitter frequency were both reduced.

Key words: Ad hoc network, route, grey prediction, ETT(expected transmission time) metric, location prediction

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