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UWB脉冲的优化设计
引用本文:王伟,高月红,杨大成. UWB脉冲的优化设计[J]. 北京邮电大学学报, 2006, 29(4): 65-68
作者姓名:王伟  高月红  杨大成
作者单位:北京邮电大学 无线网络实验室,北京 100876
基金项目:国家自然科学基金,北京市自然科学基金,韩国仁荷大学校科研和教改项目
摘    要:从最大化频谱利用率的角度提出一个设计超宽带(UWB)脉冲的算法,此算法是通过对理想UWB脉冲进行加窗、卷积来设计UWB脉冲的。所设计的脉冲不仅时间上受限减少了多址干扰,而且在满足频谱模板的情况下提高了频谱利用率,改善了UWB通信系统的性能。另外,本算法具有通用性与灵活性,适合任意国家的频谱模板。

关 键 词:超宽带脉冲无线电  频谱利用率  功率谱密度  频谱模板
文章编号:1007-5321(2006)04-0065-04
收稿时间:2005-06-27
修稿时间:2005-06-27

Research on the Congestion Control Algorithm of CDMA Systems
WANG Wei,GAO Yue-hong,YANG Da-cheng. Research on the Congestion Control Algorithm of CDMA Systems[J]. Journal of Beijing University of Posts and Telecommunications, 2006, 29(4): 65-68
Authors:WANG Wei  GAO Yue-hong  YANG Da-cheng
Affiliation:Wireless Network Lab, Beijing University of Posts and Telecommunications, Beijing 100876, China
Abstract:A new algorithm to design ultra-wideband pulse was presented to maximize the spectrum utilization efficiencies.ultra-wideband(UWB) pulse can be obtained by windowing the ideal UWB pulse and convolution.The pulse designed here not only was limited to time so as to reduce the multiple access interference but enhanced the spectrum utilization efficiency under the spectral mask constraint,which improved the transmission quality of a UWB system.Furthermore,a flexible and effective method for designing pulses satisfying arbitrary UWB frequency emission mask is provided in this algorithm.
Keywords:ultra-wideband impulse radio   spectrum utilization efficiency   power spectral density   frequency mask
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