基于OPNET的无线信道干扰对系统性能的影响研究  

Impact of interference in OPNET-based wireless channel on system performance

作　　者：梁向阳[1] 李敏[1] 

机构地区：[1]西安工业大学,陕西西安710032

出　　处：《现代电子技术》2013年第17期27-29,共3页Modern Electronics Technique

基　　金：陕西省教育厅基金(11JK1064);陕西省科技厅相关项目(2011K06-14)

摘　　要：以研究陆上无线通信信道中干扰对系统性能的影响为目标,基于OPNET仿真平台,建立了干扰节点对一般自由空间模型无线通信的干扰仿真模型。根据仿真结果,分析了干扰对无线信道传输的影响,随着干扰节点与收信机距离的变化,误比特率呈现一种单调非线性变化趋势。同时,干扰节点的功率,决定了干扰有效距离。文中建立的仿真模型对网络规划及优化配置具有一定的参考价值。To study the impact of interference in the land-based wireless communication channel on the system perfor-mance, an simulation model that interference node affects the wireless communication in general free space model was estab-lished based on the OPNET simulation platform. According to the simulation results, the impact of the interference on the wire- less channel transmission is analysed. The conclusions are that the bit error rate appears a monotonic nonlinear trend with the distance change between interference node and the receiver, and the effective interference range is determined by the power of the interference node. The simulation model established in this paper has a certain reference for the network planning and optimal configuration.

关 键 词：OPNET 无线通信 干扰 误比特率 

分 类 号：TN911.7[电子电信—通信与信息系统]