MTC组寻呼基于提前退避接入策略研究  

Group Paging based on Pre- Backoff Access Scheme in Machine- Type Communications

作　　者：蒋伟[1] 王献[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《通信技术》2014年第2期172-178,共7页Communications Technology

基　　金：国家自然科学基金资助项目(No.61171096)~~

摘　　要：组寻呼方案有效的解决了大量机器类型通信(MTC,Machine-type Communications)设备同时接入LTE无线网络的拥塞问题。主要对MTC组寻呼基于提前退避的随机接入策略进行深入研究,通过对组寻呼基于提前退避策略进行理论建模,得到其性能分析表达式。数值分析结果表明,基于提前退避的随机接入策略比基于传统的随机接入策略更能提高组寻呼的接入性能。Group paging scheme could efficiently solve the problem of radio access network congestion when a large number of machine-type communication （ MTC ） devices make simultaneous access to LTE net- work. In this paper, an analytical model to assess the access performance of group paging based on pre- backoff random access scheme is proposed, thus to derive analytical formulas for the access performance based on the model. Performance test of the group paging based on pre-hackoff scheme is done in accord- ance with the performance of group paging based on traditional random access scheme. Numerical analysis results indicate that the pre-backoff random access scheme could remarkably enhance the access perform- ance of the group paging.

关 键 词：MTC 组寻呼 随机接入提前退避过载控制 

分 类 号：TN929.5[电子电信—通信与信息系统]