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A Novel Peak-Windowing Technique for WCDMA Systems

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3 Author(s)
H. Kuo ; Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong. ; S. W. Cheung ; S. S. F. Hau

In wideband code division multiple access (WCDMA), the high crest factor (CF) in the downlink signal has imposed a tight requirement on the linearity characteristic of the transmitter power amplifiers (PAs). This paper proposes a new peak-windowing technique to reduce the CF of a WCDMA signal. Computer-simulation tests have been carried out to study the effects of the proposed technique on the downlink signal of a WCDMA system. Results have shown that the performance of the technique, in terms of reduction in the CF, the error-vector-magnitude (EVM), the peak-code-domain error (PCDE), the adjacent-channel-leakage power ratio (ACLR) and the bit-error rate (BER) performance, are superior to other clipping and/or windowing techniques studied in this paper

Published in:

2006 IEEE 63rd Vehicular Technology Conference  (Volume:4 )

Date of Conference:

7-10 May 2006