Wavelet and Its Hilbert Transform Based Multi-Carrier CDMA

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2002, Vol. 25 ›› Issue (3): 60-63.

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Wavelet and Its Hilbert Transform Based Multi-Carrier CDMA

LI Wei-hua, ZHAO Ya-hong, WU Wei-ling

Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2001-09-03 Online:2002-09-10
Supported by:

Abstract

Abstract: Three novel MC-CDMA systems, using wavelet and its Hilbert transform for multi-carrier CDMA,were presented. Such systems are basedon that Hilbert transform of a wavelet is orthogonal to its time shifts and itis also orthogonal to the corresponding wavelet and its translation. We investigated the advantages and performance of the system by the comparison with the conventional MC-CDMA system. In the AWGN channel, the systems possess the same BERas the MC/BPSK-CDMA and MC/QPSK-CDMA system, double the bit rate without increasing the bandwidth than the conventional MC-CDMA system.

Key words: multiple carrier code division multiple access, wavelet, band efficiency

CLC Number:

TN929.5

LI Wei-hua, ZHAO Ya-hong, WU Wei-ling. Wavelet and Its Hilbert Transform Based Multi-Carrier CDMA[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2002, 25(3): 60-63.

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Wavelet and Its Hilbert Transform Based Multi-Carrier CDMA

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