电讯技术2016，Vol.56Issue(3)：252-258,7.DOI:10.3969/j.issn.1001-893x.2016.03.004
无线双通道网络话音业务信道接入性能分析
Channel Access Performance Analysis of Voice Services in Wireless Dual-channel Networks
摘要
Abstract
Dual-channel network( DCN) can reduce code resource wastage caused by the condition that a fewer subnets are needed for the tactical very high frequency( VHF) network with code division networking scheme. Under the hybrid services transmission environment,the channel access performance of real-time voice service is one of the key issues to evaluate DCN performance. In this paper,an ideal fixed channel bandwidth allocation scheme based on time division mechanism is employed to analyze the available chan-nel number in DCNs. Then a hybrid service multi-server discrete slot queue model based on access priori-ty is used to derive the network state transition probability and steady state probability distribution. The mathematical expressions of average number, call blocking probability, average network throughput and channel utilization efficiency of voice services in DCNs are also devided according to the model. Numerical results demonstrate that,compared with the traditional network,DCN can own a higher voice service num-ber and a lower call blocking probability.关键词
双通道网络/码分资源/话音业务/信道接入/阻塞概率/网络吞吐量Key words
dual-channel network/code resource/voice service/channel access/call blocking probability/network throughput分类
信息技术与安全科学引用本文复制引用
杜传报,全厚德,唐友喜,崔佩璋,郑保明..无线双通道网络话音业务信道接入性能分析[J].电讯技术,2016,56(3):252-258,7.基金项目
国家自然科学基金资助项目(U1035002/L05) （U1035002/L05）
国家科技重大专项(2014ZX03003001-002) Foundation Item:The National Natural Science Foundation of China ( U1035002/L05) （2014ZX03003001-002）
The National Science and Technology Major Project (2014ZX03003001-002) （2014ZX03003001-002）
