摘要
铁路进行通信前期设计规划过程中,为了缩短设计周期,需要尽快获得网络信道主要性能指标,如误码率(BER)、端到端延时、吞吐量等Qo S,而目前勘测人员现场测量所耗时间较长,而且获得的信号量与以上性能指标不能直接匹配。为了改变这种现状,现采用OPNET计算机仿真工具与铁路现场的参数相结合的方法进行建模,软件仿真大大缩短通信设计时间,并且得到GSM-R网与WLAN同等测试环境下参数的结果,仿真得出的结论还可为前期现场通信设计施工提供部分有效的数据支撑。
To reduce the time to design railway communication network, such network data of communication as transmission delay, bit error rate and throughput have to be obtained as soon as possible. However, the time spent on site investigation is unnecessarily long and the signals so obtained are not incompatible with performance index of network channel directly. In order to improve the situation, OPNET network simulation tool is used to build network modeling in combination with the site parameters. The software simulation reduces greatly the time for designing of communication and gets different results of GSM-R and WLAN from the same scenario. The results of simulation can be used to provide effective data support for designers and engineers in the pre-design and construction of communication system.
出处
《铁道标准设计》
北大核心
2015年第12期99-104,共6页
Railway Standard Design
