Spreading and coding for anti-interference in UWB system
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Spreading and coding for anti-interference in UWB system
Issue 11, (2005)
作者机构:
1. 南通大学电子信息学院
2. 南通大学电子信息学院,江苏,南通,226007
作者简介:
基金信息:
DOI:
CLC:TN925
Published:2005
稿件说明:
移动端阅览
XU Chen, ZHANG Shi-bing. Spreading and coding for anti-interference in UWB system[J]. 2005, (11).
DOI:
XU Chen, ZHANG Shi-bing. Spreading and coding for anti-interference in UWB system[J]. 2005, (11).DOI:
Spreading and coding for anti-interference in UWB system
摘要
将正交频分复用(OFDM)技术和正交扩频交织编码技术相结合
并引入到超宽带(UWB)通信系统中
通过正交扩频将信息比特扩展到各个子带的子信道中
再进行交织编码
可大大提高系统抗窄带干扰能力。仿真结果表明
这种正交扩频交织编码技术具有明显的抗窄带干扰顽健性
系统信干比提高5dB左右
误比特率改善1-2个数量级。
Abstract
Spreading every transmitted bit over each sub-band and interleaving the spread signals over all of the sub-bands would provide the robustness to narrow-band interference in the ultra-wide band (UWB) system based on orthogonal frequency-division multiplexing (OFDM). Simulation results show that the system has evident robustness against narrow-band interference and would improve the performance about 5dB in SIR or 1-2 order in BER.