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Proceedings Paper

An improved multiple access design for UWB communication system
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Paper Abstract

The multiple access interference is the main reason that limits the UWB system capacity. The flexibility of pulse selection is a prominent property which is different from the conventional communications. In this paper, a new multiple-access scheme: Waveform Division Multiple Access (WDMA) based on the orthogonal wavelet function shapes is presented. In this scheme, the scaling function φ(t) and the wavelet function ψ(t) representing the UWB pulses are equally assigned to different users to realize multiple access. Because of the better orthogonality of φ(t) and ψ(t), the multiuser interference will be suppressed more effectively. The performance analysis and simulation results show that WDMA system can accommodate more users than TH-PPM UWB and DS-BPSK UWB system.

Paper Details

Date Published: 28 April 2004
PDF: 10 pages
Proc. SPIE 5284, Wireless Communications and Networks, (28 April 2004); doi: 10.1117/12.523397
Show Author Affiliations
Xuetian Zhu, Beijing Univ. of Posts and Telecommunications (China)
Tianle Deng, Beijing Univ. of Posts and Telecommunications (China)
Zheng Zhou, Beijing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 5284:
Wireless Communications and Networks
Chih-Lin I; Jiann-An Tsai; Hequan Wu, Editor(s)

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