一种GSM-R网内抗干扰频率配置方案  

Anti-Interference Frequency Configuration Scheme in GSM-R Network

作　　者：刘龙海[1] 冯云 宗容[1] 李玲 刘丽萍 余江[1] LIU Long-hai;FENG Yun;ZONG Rong;LI Ling;LIU Li-ping;YU Jiang(School of Information,Yunnan University,Kunming Yunnan 650500,China;Yunnan Provincial Monitoring Center,Kunming Yunnan 650100,China)

机构地区：[1]云南大学信息学院,云南昆明650500 [2]云南省监测中心,云南昆明650100

出　　处：《通信技术》2019年第3期640-645,共6页Communications Technology

基　　金：国家自然科学基金(No.61162004)~~

摘　　要：在对GSM-R系统进行无线电监测和保护过程中发现,频率规划不合理是GSM-R网内干扰的一个重要来源。为了网内减少干扰,考虑在列车异常切换的情况下,将同信道、邻道和共址约束条件进行综合约束,利用模拟退火算法使GSM-R可用的频道最大化满足相隔一个小区的频率间隔不小于400 kHz的要求。优化结果表明满足该条件的最大频道数为17个,结合网络的覆盖方式,合理的将频道进行配置,提高了组网频道利用率,增强了GSM-R系统自身抗干扰能力。In the process of radio monitoring and protection of GSM-R system,it is found that the unreasonable frequency planning is an important source of interference in the GSM-R network.In order to reduce interference within the network,it is considered to comprehensively constrain the co-channel,adjacent channel and co-location constraints in the case of abnormal train switching.The simulated annealing algorithm is used to maximize the available channels of GSM-R network,so as to meet the requirement of frequency interval of not less than 400 kHz in one cell apart.The optimization results indicate that the maximum number of channels satisfying this condition is 17,and in combination with the coverage mode of the network by reasonably configuring the channel,the utilization rate of networking channel is improved,and the anti-interference ability of GSM-R system also enhanced.

关 键 词：GSM-R 配置方案 模拟退火算法 频率规划 

分 类 号：TN929.5[电子电信—通信与信息系统]