计算机应用
計算機應用
계산궤응용
COMPUTER APPLICATION
2010年
4期
881-883
,共3页
会话初始化协议%LZSS算法%算术编码%信令压缩
會話初始化協議%LZSS算法%算術編碼%信令壓縮
회화초시화협의%LZSS산법%산술편마%신령압축
Session Initiation Protocol (SIP)%Lempel-Ziv-Storer-Szymanski (LZSS) algorithm%arithmetic coding%signaling compress
独立媒体服务(IMS)是第三代合作伙伴计划(3GPP)在版本5中提出的支持IP多媒体业务的子系统,而基于文本的SIP消息过大成为其在IMS无线环境应用下的瓶颈,因此采用会话初始化协议(SIP)来建立和维护多媒体会话.在SigComp框架下.将改进后的LZSS算法与算术编码相结合对SIP信令进行压缩.实验表明新的算法有较高的压缩率,对改善IMS的SIP会话建立延时有一定的参考价值.
獨立媒體服務(IMS)是第三代閤作夥伴計劃(3GPP)在版本5中提齣的支持IP多媒體業務的子繫統,而基于文本的SIP消息過大成為其在IMS無線環境應用下的瓶頸,因此採用會話初始化協議(SIP)來建立和維護多媒體會話.在SigComp框架下.將改進後的LZSS算法與算術編碼相結閤對SIP信令進行壓縮.實驗錶明新的算法有較高的壓縮率,對改善IMS的SIP會話建立延時有一定的參攷價值.
독립매체복무(IMS)시제삼대합작화반계화(3GPP)재판본5중제출적지지IP다매체업무적자계통,이기우문본적SIP소식과대성위기재IMS무선배경응용하적병경,인차채용회화초시화협의(SIP)래건립화유호다매체회화.재SigComp광가하.장개진후적LZSS산법여산술편마상결합대SIP신령진행압축.실험표명신적산법유교고적압축솔,대개선IMS적SIP회화건립연시유일정적삼고개치.
Independent Media Services (IMS) is a subsystem to support LP Multimedia services, working in the 3rd Generation Partnership Project (3GPP) of version 5. IMS uses Session Initiation Protocol (SIP) to establish and maintain multi-media session; however, oversized SIP message based on text is becoming a bottleneck under IMS wireless circumstances. Under the framework of SigComp, a new algorithm based on improved Lempel-Ziv-Storer-Szymanski (LZSS) algorithm and arithmetic combination was presented to compress SIP signaling. Simulation results prove that the new algorithm has higher compression efficiency. It is valuable for IMS SIP session setup delay.
