摘要
针对TD-SCDMA电路域会话类业务占用无线信道资源和呼叫到达过程的特点,提出并建立了一种基于二维马尔可夫模型的语音业务和可视电话业务联合呼叫到达模型。对该模型的分析和仿真测试,分别得到了TD-SC-DMA系统容量、业务到达率和业务呼损率之间的关系。并利用统计出的实际话务量可预测出忙时话务量,根据系统规定的呼损率估算出系统忙时对容量的需求。该模型可用于对TD-SCDMA系统无线资源的规划和网络优化。
According to circuit-switched conversation service characteristics of wireless channel resources occupancy and call arrival process in TD-SCDMA,a combined call arrival model for voice and videophone service based on two-dimensional markov model is presented and established.Through analysis and simulation test,the relationships between system capacity of TD-SCDMA,arrival rate of traffics and call lost rate of traffics are obtained respectively.Busy traffic can be forecasted using statistical practical traffic.Further more,the request of busy system capacity can be estimated according to the need of call lost rate.The model can be used to wireless resource planning and network optimizing in TD-SCDMA system
出处
《重庆邮电大学学报（自然科学版）》
北大核心
2012年第2期164-168,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
国家高技术研究发展计划("863"计划)(2009AA011302)
信号与信息处理重庆市重点实验室建设项目(CSTC
2009CA2003)
重庆邮电大学自然科学基金项目(A2011-09)~~
关键词
会话类业务
呼叫到达模型
呼损率
系统容量
conversational services
call arrival model
call lost rate
system capacity
