Multiple access interference and multipath interference analysis of orthogonal complementary code‐based ultra‐wideband systems over multipath channels
Multiple access interference and multipath interference analysis of orthogonal complementary code‐based ultra‐wideband systems over multipath channels
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DOI：
10.1002/dac.2623
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发表时间：
2014-12
影响因子：
2.1
通讯作者：
Zhiquan Bai;F. Zhao;Changhui Wang;Cheng-Xiang Wang
中科院分区：
文献类型：
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作者：
Zhiquan Bai;F. Zhao;Changhui Wang;Cheng-Xiang Wang
为了减轻超宽带(UWB)系统的多址干扰和多径干扰，我们提出了基于正交互补码(OCC)的直接序列UWB系统和偏移叠加(OS)-UWB系统。 OCC具有完善的偏自相关和互相关特性。通过在UWB系统中应用OCC，我们可以在多址干扰和多径干扰方面获得更好的性能。由于其创新的操作系统扩展技术，所提出的OS-UWB结构还可以实现可变数据速率传输。理论分析和仿真结果表明，所提出的UWB系统可以获得优异的性能，并且优于基于统一码的直接序列UWB系统。版权所有 © 2013 约翰·威利父子有限公司
In order to alleviate multiple access interference and multipath interference of ultra‐wideband (UWB) system, we propose the orthogonal complementary code (OCC)‐based direct‐sequence UWB system and offset‐stacking (OS)‐UWB system. OCC has perfect partial autocorrelation and cross‐correlation characteristics. With the application of OCC in UWB system, we can obtain better performance in multiple access interference and multipath interference. The proposed OS‐UWB structure can also achieve variable data rate transmission because of its innovative OS spreading technique. Theoretical analysis and simulation results show that the proposed UWB system can achieve excellent performance and outperform the unitary code‐based direct‐sequence UWB system. Copyright © 2013 John Wiley & Sons, Ltd.