Waveform Division Multiple Access Based on theOrthogonal Wavelet for Ultra-Wideband ImpulseRadio Multiple-Access Communication

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (4): 13-17.

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Waveform Division Multiple Access Based on the
Orthogonal Wavelet for Ultra-Wideband Impulse
Radio Multiple-Access Communication

ZHU Xue-tian,　DEN G Tian-le,　ZHOU Zheng

A new ul tra-wideba nd UWB multiple-access scheme, wav eform divi sion multiple access WDM A based o n the orthog onalwavelet function sha pes, is presented. In this new scheme, the scaling functionO t and the wavelet functio n j t a re desig ned as UWB pulses, which are uni fo rmly di st ributed to the users to reali ze mul tiple access. Theoretical analysis and simulatio n results show that o ur WDMA UWB sy stem has la rg er capaci ty than the tradi tional TH-PPM timehopping-pulse po sition modulatio n and DS-BPM di rect sequence-bi-po larity modulatio n .

Received:2003-05-26 Online:2004-04-28

Abstract

Abstract: A new ultra-wideband (UWB) multiple-access scheme, waveform division multiple access (WDMA) based on the orthogonal wavelet function shapes, is presented. In this new scheme, the scaling function (t) and the wavelet function　ψ(t) are designed as UWB pulses, which are uniformly distributed to the users to realize multiple access. Theoretical analysis and simulation results show that our WDMA UWB system has larger capacity than the traditional TH-PPM(timehopping-pulse position modulation ) and DS-BPM(direct sequence-bi-polarity modulation).

Key words: ultra-wideband, waveform division multiple acesss, orthogonal wavelet, multiple access

CLC Number:

TN914.3

ZHU Xue-tian,　DEN G Tian-le,　ZHOU Zheng. Waveform Division Multiple Access Based on the
Orthogonal Wavelet for Ultra-Wideband Impulse
Radio Multiple-Access Communication
[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2004, 27(4): 13-17.

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Waveform Division Multiple Access Based on the
Orthogonal Wavelet for Ultra-Wideband Impulse
Radio Multiple-Access Communication

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