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Performance Analysis of Anti-Interference UWB-OFDM System 被引量：1

Performance Analysis of Anti-Interference UWB-OFDM System
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摘要 This paper examines the robustness of anti-interference Ultra-Wide-Band UWB-OFDM （AI-UWB） systems in presence of narrow-band interference. It analyzes the bit error rate performance of the systems in both the single-user and multi-user modes, and compares its robustness in different code matrixes. By encoding transmitted symbols and spreading their power over all sub-bands, AI-UWB systems can make full use of the frequency diversity across the sub-bands and have more robustness to the narrowband interference. Simulating results show that different codes have almost the same robustness to the narrowband interference. The encoding and spreading could suppress the narrowband interference effectively. Compared with the IS-UWB systems, our approach has more than 5 dB interference margin. This paper examines the robustness of anti-interference Ultra-Wide-Band UWB-OFDM （AI-UWB） systems in presence of narrow-band interference. It analyzes the bit error rate performance of the systems in both the single-user and multi-user modes, and compares its robustness in different code matrixes. By encoding transmitted symbols and spreading their power over all sub-bands, AI-UWB systems can make full use of the frequency diversity across the sub-bands and have more robustness to the narrowband interference. Simulating results show that different codes have almost the same robustness to the narrowband interference. The encoding and spreading could suppress the narrowband interference effectively. Compared with the IS-UWB systems, our approach has more than 5 dB interference margin.
作者 ZHANG Shi-bing CAO Shi-ke ZHANG Li-jun
机构地区 Communication and Information Engineering Institute School of Electronics and Information
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2006年第2期6-9,38,共5页 中国邮电高校学报（英文版）
基金 ThisworkwassupportedbyUniversitiesNaturalScienceResearchProjectofJiangsuProvince(05KJB510101).
关键词 UWB ANTI-INTERFERENCE bit error rate CODING SPREADING UWB anti-interference bit error rate coding spreading
分类号 TN914.51 [电子电信—通信与信息系统]
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The Journal of China Universities of Posts and Telecommunications
2006年 第2期

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