宽带无线网络覆盖预测  

Broadband Wireless Network Coverage Prediction

作　　者：李剑[1] 赵东风[1] 孙云山[1] 

机构地区：[1]云南大学通信工程系,昆明650091

出　　处：《计算机工程与应用》2003年第25期168-170,共3页Computer Engineering and Applications

基　　金：国家教育部骨干教师基金资助项目;云南省自然科学基金资助项目(编号:1999F0014M)

摘　　要：在规划设计宽带无线网络过程中,合理地选取接入点(AP)的位置将对系统的性能和造价产生重要的影响。在无线局域网(WLAN)中,2.4GHzISM频段上宽带无线信号受到楼内不同类型障碍物影响,产生了特有的信号衰减。对宽带无线信号的楼内传播特性进行了测量,并将测量结果和分析数值进行比较,讨论了2.4GHz频段楼内无线传输路径衰耗的计算模型,分析了楼内宽带无线接入的性能,开发了一种用于在规划WLAN时预测AP覆盖范围的辅助软件。In designing of broadband wireless network,the sound selection of the position of the Access Point will greatly decide the performance and the cost of the whole system.In the In-building WLAN,different kind of obstacles effect the propagation of2.4GHz wireless signal and result in a special path loss.The In -building propagation of2.4GHz wireless signal is measured.By comparing the measured data and the predict data,a In-building path loss model for2.4GHz wireless signal is obtained.Based on the model,a software helping to predict the coverage of the Access Point is developed.

关 键 词：宽带无线接入 WLAN 2.4GHz频段 室内 覆盖预测 

分 类 号：TN915[电子电信—通信与信息系统]