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FIR Filter of DS-CDMA UWB Modem Transmitter
Kyu-Min KANG Sang-In CHO Hui-Chul WON Sang-Sung CHOI
IEICE TRANSACTIONS on Communications
Publication Date: 2008/03/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
FIR filter, ternary spreading code, look-up table (LUT), DS-CDMA, UWB transmitter,
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This letter presents low-complexity digital pulse shaping filter structures of a direct sequence code division multiple access (DS-CDMA) ultra wide-band (UWB) modem transmitter with a ternary spreading code. The proposed finite impulse response (FIR) filter structures using a look-up table (LUT) have the effect of saving the amount of memory by about 50% to 80% in comparison to the conventional FIR filter structures, and consequently are suitable for a high-speed parallel data process.