摘要
对宽带CDMA系统应用于井下无线通信进行了分析,重点对微小区基站接收的信噪比门限与小区用户数的关系,以及微小区基站接收的信噪比门限与路径损耗的关系进行了定量分析和相应的性能仿真.仿真结果表明,将宽带CDMA系统应用于井下巷道1 000 m内微蜂窝小区覆盖,可相应降低微蜂窝小区移动用户的路径损耗,提高系统通信质量.
Analyzed the broadband CDMA system which was in application to the mine wireless telecommunication. The relation between the sign-noise ratio threshold received by microcell base station and the number of microcell users, as well as the relation between the sign-noise ratio threshold received by microcell base station and the path loss were analyzed and simulated according to their corresponding performance particularly. The simulation resuits show that the path loss is reduced and the system communication quality is improved when the broadband CDMA system is in application to the microcell overlay within 1 000 meters of the mine path.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第12期1337-1339,共3页
Journal of China Coal Society
基金
山东科技大学科学发展基金资助项目(05g009)
