Error Control Coding Schemes for Ultra-wideband Impulse Radio Systems
Error Control Coding Schemes for Ultra-wideband Impulse Radio Systems
复制标题
超宽带脉冲无线电系统的差错控制编码方案
DOI：
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复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
M. Pietrzyk
中科院分区：
文献类型：
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作者：
M. Pietrzyk
超宽带（UWB）是一种很有前途的技术，它为下一代无线设备的数据速率、成本、功耗和物理尺寸要求提供了潜在的解决方案。UWB在未来异构网络的实现中也可能发挥重要作用。这项技术最近引起了学术界和工业界的极大兴趣。UWB的优势在于所使用的非常大的瞬时带宽和简单收发器架构的潜力。本论文主要研究UWB技术的几个重要方面，包括可行的超宽带脉冲无线电（UWB-IR）系统的建模、性能表征以及合适的差错保护方法。本论文的主要目的是提出并评估新的错误控制技术，特别适用于在严重的多径干扰环境中工作的UWB-IR系统。所提出的方法利用UWB信道通过多径带来的时间分集，从而允许缓解符号间（ISI），帧间（IFI）和脉冲间（IPI）干扰的破坏性影响。我们发现，重新安排UWB芯片或UWB帧的顺序会导致误码率（BER）性能的改善。这种改进在具有帧重复作为防止错误的方法的UWB-IR系统的情况下特别明显。所提出的分析的新奇在于，它考虑了ISI，IFI和IPI效应，RF前端问题和真实的天线特性，这些往往被研究人员忽视。此外，他们提出，第一次，为给定类型的简单的非相干接收机架构（差分自相关接收机），信道编码方案（超正交卷积编码），和信道模型（IEEE 802.15.3a多径衰落信道）。
Ultra-wideband (UWB) is a promising technology that offers a potential solution for the data rate, cost, power consumption and physical size requirements of the next generation wireless devices. UWB may also play an important role in the realization of future heterogeneous networking. This technology has recently gained significant interest from both academia and industry. The strength of the UWB lies in the very large instantaneous bandwidth that is used and the potential for simple transceiver architectures. This thesis deals with several important aspects of the UWB technology, including modeling of feasible ultra-wideband impulse radio (UWB-IR) systems, their performance characterizations, and suitable methods for protection against errors. The main goal of this thesis is to propose and evaluate novel error control techniques particularly suitable for UWB-IR systems operating in severe multipath interference prone environments. The proposed methods exploit the temporal diversity brought by the UWB channels through multipaths and as a result allow for the alleviation of destructive effects of inter-symbol (ISI), inter-frame (IFI), and inter-pulse (IPI) interference. We found that rearranging the order of UWB chips or UWB frames results in a bit error rate (BER) performance improvement. This improvement is particularly apparent in case of UWB-IR systems with frame repetition as the method of protection against errors. The novelty of the presented analysis is that it considers ISI, IFI, and IPI effects, RF front-end issues and real antenna characteristics that are often neglected by the researchers. Moreover, they are presented, for the first time, for the given type of the simple incoherent receiver architecture (differential autocorrelation receiver), channel coding scheme (superorthogonal convolutional coding), and channel model (IEEE 802.15.3a multipath fading channel).
DOI：
10.1109/uwbst.2004.1320964
发表时间：
2004-05
期刊：
2004 International Workshop on Ultra Wideband Systems Joint with Conference on Ultra Wideband Systems and Technologies. Joint UWBST & IWUWBS 2004 (IEEE Cat. No.04EX812)
影响因子：
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作者：
T. Matsumoto;H. Ochiai;R. Kohno
通讯作者：
T. Matsumoto;H. Ochiai;R. Kohno
比特交织编码DAPSK在瑞利衰落信道上的性能研究
DOI：
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发表时间：
2004
期刊：
IEEE International Conference on Communications 2004 (ICC'04), Paris(French)
影响因子：
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作者：
Koji ISHIBASHI;Hideki OCHIAI;R.KOHNO
通讯作者：
R.KOHNO
影响因子：
2.5
作者：
Richardson, TJ;Urbanke, RL
通讯作者：
Urbanke, RL