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中文摘要：
为了对IP多媒体子系统平台的push to talk over cellular（PoC）-4接口real-time transport protocol媒体流量进行优化,对open mobile alliance提出的媒体流传输机制及其优化机制进行了分析,并提出了改进的优化机制.新机制通过增强participating server侧控制功能并引入松耦合及分布式控制的思想,减少了PoC-4接口的数据流量,降低了数据在发送队列中的平均等待时延,节省了网络带宽.仿真结果表明,改进的优化机制较原优化机制具有更好的优化效果.
英文摘要：
In order to optimize media traffic through push to talk over cellular （ PoC）-4 interface in Internet protocol （ IP） multimedia subsystem,an improved optimization mechanism is presented by taking loose-coupling and distributed-controlling ideas into consideration. Under the new mechanism,the media traffic through PoC-4 interface can be reduced greatly,and the network bandwidth can be saved much and waiting delay of real-time transport protocol packages in PoC server can also be shortened obviously. Analysis and simulation show that the new mechanism performs more effectively than do the original transmitting mechanism and the media traffic optimization mechanism proposed by open mobile alliance.
同期刊论文项目
同项目期刊论文
Sender-based Multipath Out-of-order Scheduling for High-definition Videophone in Multi-homed Devices
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