Acta Metallurgica Sinica(English letters)

• Wireless • 上一篇    下一篇

Performance analysis of anti-interference UWB-OFDM system

张士兵;曹士坷;张力军   

  1. Communication and Information Engineering Institute, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2005-10-17 修回日期:1900-01-01 出版日期:2006-11-23
  • 通讯作者: 张士兵

Performance analysis of anti-interference UWB-OFDM system

ZHANG Shi-bing;CAO Shi-ke;ZHANG Li-jun   

  1. Communication and Information Engineering Institute, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

  • Received:2005-10-17 Revised:1900-01-01 Online:2006-11-23
  • Contact: ZHANG Shi-bing

关键词:

Abstract: This paper examines the robustness of anti-interference 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. 16 Refs. In English.

Key words: Ultra-wideband; anti-interference; bit error rate; coding; spreading

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