| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 725712 | The Journal of China Universities of Posts and Telecommunications | 2006 | 5 Pages |
Abstract
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.
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Authors
Shi-bing ZHANG, Shi-ke CAO, Li-jun ZHANG,