【摘要】 针对移动流媒体系统中无线接入网带宽窄、终端缓存空间小的特点,提出了一种适用于3G WCDMA网络的流媒体缓存体系结构WSCA,设计了基于缓存的移动流媒体调度策略WSCS,探讨了WSCA系统在实现中的技术细节。分析表明,WSCA体系与WSCS调度策略结合,能有效提高用户服务质量,降低核心网络带宽消耗,对3G流媒体应用具有一定的参考价值。更多还原

【Abstract】 According to the characters of mobile streaming system such as low bandwidth in wireless access network and small memory size in mobile handset,a novel caching system architecture WSCA for 3G WCDMA network is proposed.A cache-based mobile streaming schedule policy named WSCS is designed,and technique details are discussed.Analysis shows,combining with WSCS streaming schedule policy,WSCA architecture can effectively decrease the core network transmission cost and improve the quality of services,and it is valuable for 3G streaming service application system.更多还原