Research and Analysis of CAC Schemes Based on Multi-Level GSM-R Services
This paper focuses on safety,reliability requirements and the needs of multi-service in railway communication and carries out researches combined with theory illustration and simulation analysis. Available resources of railway are scarce currently,while services facing to the railway communication are various,such as the radio dispatch services,train control services,as a result,the resources of system are severely limited. At the same time,there are many different services and servicelevel requirements,such as train control services with high reliability requirements,train radio dispatch services demanding real-time feature,the data services in general level. Therefore,it is essential to take appropriate resource allocation strategies. A dynamic adaptive resource call admission strategy is presented in this paper. Network performance is also compared through simulations under a variety of call admission strategies. In conclusion,wireless network resources are fully and effectively used in condition of ensuring the QoS (Quality of Service).
GSM-R (Global System of Mobile for Railways) Services Reservation CAC (Call Admission Control)
Zhan Xu Shijie Li Ning Liu Ying Liu
State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing,China School of Electronics and Information Engineering,Beijing Jiaotong University,Beijing,China
国际会议
西安
英文
2704-2708
2011-12-23（万方平台首次上网日期，不代表论文的发表时间）