SSA-UWB对IEEE802.11A WLAN系统的干扰研究  

Study of the SSA-UWB Interference to 802.11a WLAN System

作　　者：吴常国[1] 姬国庆[1] 姜光兴[1] 

机构地区：[1]南京邮电大学无线通信与电磁兼容实验室,南京210003

出　　处：《中国电子科学研究院学报》2008年第3期293-296,共4页Journal of China Academy of Electronics and Information Technology

基　　金：国家自然科学基金重点项目(60432040);教育部博士点基金(202509230031)

摘　　要：认知技术在无线通信系统频谱利用和解决系统干扰中的作用越来越受到关注。就软频谱适应超宽带(SSA-UWB)对于802.11a WLAN的干扰进行了研究,并基于TG1/8研究组报告中UWB与WLAN干扰研究的场景进行了全面的仿真。从仿真结果可以看到,干扰与距离、超宽带终端分布、环境等因素有关。所提出的SSA-UWB频谱,在满足FCC的要求下能够有效的规避对802.11a WLAN系统的干扰。Cognitive Radio （CR） technology has recently received much attention. This paper researches a soft-spectrum adaptation Modulation （SSA） UWB interfering WLAN. It discusses and simulates the effect of the interference to WLAN under the model and scenario proposed in TG 1/8 group. From the simulation, the proposed method has simple structure and shows good performance. By designing a proper pulse waveform and coding with high frequency efficiency according to the spectrum mask canceling the band of IEEE 802.11 a, the interference by UWB will be minimized.

关 键 词：软频谱适应超宽带 功率谱密度 干扰 

分 类 号：TN911.6[电子电信—通信与信息系统]