%0 Journal Article
%T A new sip retransmission mechanism based on IMS<br>一种新的基于IMS的SIP重传机制
%A LIN Hui
%A WAN Xiao-yu
%A FAN Zi-fu
%A <br>林晖
%A 万晓榆
%A 樊自甫
%J 计算机应用
%D 2007
%I 
%X At present,the session setup time based on the Session Initial Protocol(SIP) in IP Multimedia Subsystem(IMS)is affected by the constrained bandwidth of the wireless link,Frame Error Rate(FER).The number and size of the message exchanged affect the average session setup delay,which can result in retransmission of packets lost and can lengthen the session setup time.In this paper,both the session setup and wireless link were taken into account and a new adaptive retransmission mechanism that was adjustable to the size of signaling packets involved in the session establishment was proposed.The numerical results indicate that the proposed new mechanism can make the session setup shorter and is efficient for optimizing the time of session setup.
%K IP Multimedia Subsystem(IMS)
%K Quality of Service(QoS)
%K Session Initial Protocol(SIP)
%K delay<br>IP多媒体子系统
%K 服务质量
%K 会话初始协议
%K 时延
%K 重传机制
%K based
%K mechanism
%K 改善
%K 服务质量
%K 端到端
%K 结果
%K 实验
%K 自适应
%K 结合
%K 性能
%K 建立时间
%K 延长
%K 时延
%K 会话建立
%K 长度
%K 交换
%K 影响
%K 错误率
%K 带宽
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD27430512C9DD2A4CCB346733&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=94C357A881DFC066&sid=2D52C01434B71375&eid=B3BA5701971F4D8F&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=8