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A Novel Peak-Windowing Technique for WCDMA Systems

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3 Author(s)
Kuo, H. ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. ; Cheung, S.W. ; Hau, S.S.F.

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:

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd  (Volume:4 )

Date of Conference:

7-10 May 2006