一种海洋互联网用户的移动性管理方法  

A Location Management Method for Marine Internet Users

作　　者：戴璐 姜胜明[1] 许彬楠 徐增辉 DAI Lu;JIANG Shengming;XU Binnan;XU Zenghui(College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海海事大学信息工程学院,上海201306

出　　处：《实验室研究与探索》2021年第5期102-106,128,共6页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(U1701265)。

摘　　要：海洋互联网中用户移动问题至今未得到很好的解决,主要原因是移动性管理策略并未充分考虑海洋特殊的环境,陆地互联网用户是直接与岸基基站连接且所连的基站是静止的。海洋互联网用户往往是与船舶基站相连接,而船舶基站是移动的。海洋互联网用户主要通过所在船舶的船舶基站与岸基基站连接,移动性问题随着用户所在船舶与岸基之间中继船舶的移动变得复杂。采用基于分群移动性管理策略,根据船舶间移动的相似性进行分群,提出了基于空间依赖度的群首选择算法。基于EXata仿真平台,通过与传统移动性管理方法进行对比,验证了分群算法可以解决频繁切换造成的拥塞问题,避免了不必要的网络开销,并且验证了群首选择算法的优越性,提高了群组间连接的稳定性。In recent years,the problem of user mobility in ocean Internet has not been well resolved.The main reason is that the current mobility management strategy does not fully consider the special environment of the ocean.Land Internet users are directly connected and connected to shore-based base stations.The base station is stationary,but the marine Internet users are often connected to the ship’s base station,which is mobile.Ocean Internet users are mainly connected to the shore-based base station through the ship’s base station where the ship is located.Mobility issues become more complicated with the movement of the relay ship between the user’s ship and the shore-based base station.In this paper,a mobility management strategy based on grouping is used to group groups based on the similarity of movement between ships,and a group head selection algorithm based on space dependence is proposed.Finally,based on the EXata simulation platform,by comparing with the traditional mobility management method,it is verified that the grouping algorithm can solve the congestion problem caused by frequent handovers,avoid unnecessary network overhead,and verify the superiority of the proposed group head selection algorithm It improves the stability of the connection between groups.

关 键 词：海洋互联网 移动性管理 空间依赖度 分群算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]