井巷BD-TFS-OFCDM无线通信系统性能仿真  

Performance Simulation of the BD-TFS-OFCDM Wireless Communication System in Mine Tunnel

作　　者：张晓光[1] 李蕾蕾[1] 高芳[1] 鲁坤[1] 徐钊[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《太原理工大学学报》2011年第6期549-554,共6页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金重点资助项目(60972059);江苏省2010年度普通高校研究生科研创新计划资助项目(CX10B_154Z)

摘　　要：为了改善由密集多径和多普勒效应导致的井巷可靠通信困难的问题,笔者在ZKTFS-OFCDM基础上提出一种新的TFS-OFCDM方案,并且当信道中子载波数目大于正交扩频序列长度时,TFS-OFCDM发展为BD-TFS-OFCDM方案。仿真结果表明:相同条件下,TFS-OFCDM误码率性能优于ZK TFS-OFCDM;用户数相同时,BD-TFS-OFCDM性能最好,抗多址干扰能力最强;扩频码长度相同的情况下,BD-TFS-OFCDM系统用户容量最大。To improve the low reliability of wireless communication caused by the dense multipath and Doppler effect,a more stringent TFS-OFCDM method based on ZK TFS-OFCDM was proposed.When the number of orthogonal subcarriers was larger than the length of orthogonal spread spectrum sequence,BD-TFS-OFCDM was developed from TFS-OFCDM.The simulation results show that： TFS-OFCDM was better than ZK TFS-OFCDM in the same condition;With the same number of users,BD-TFS-OFCDM got the best performance and the strongest resistance to MAI;With the same length of spreading code,BD-TFS-OFCDM got the biggest user capacity.

关 键 词：井巷 无线通信 OFCDM BD TFS 

分 类 号：TD655[矿业工程—矿山机电] TN92[电子电信—通信与信息系统]