文献类型：期刊文献

英文题名：An improved handoff scheme using SIP for time-shifted service in heterogeneous network

作者：Xiao, Lin[1]; Liang, Jun[2]

第一作者：肖琳

通讯作者：Xiao, Lin

机构：[1] College of Applied Science and Technology, Beijing Union University, Beijing, China; [2] Training Center of Electronic Information, Beijing Union University, Beijing, China

第一机构：北京联合大学应用科技学院

年份：2014

卷号：18

期号：12

起止页码：375-382

外文期刊名：Computer Modelling and New Technologies

收录：EI(收录号：20150500473918)

语种：英文

外文关键词：Multimedia services

摘要：Multimedia service is widely developed with the convergence of network, but it is sensitive to the data delay and packet loss introduced by mobility. The time-shifted service is a typical application in multimedia service. An improved application-layer handoff scheme using SIP is proposed in this paper to reduce the delay user experienced in time-shifted service under IMS architecture. The improved handoff scheme includes horizontal handoff and vertical handoff which supports terminal mobility and mode mobility in time-shifted service. Theoretical analysis and simulation results show the delay user experienced is greatly reduced by the improved handoff scheme which ensures the seamless experience for time-shifted service.