Title :
Pulse-shaping filter design for SSB/BPSK-DS/CDMA using look-up table
Author :
Myung-Soon Kim ; Kim, Myung-Soon ; Chung, Jin-Gyun ; Lim, Myung-Sub
Author_Institution :
Dept. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Chonju, South Korea
Abstract :
An efficient pulse-shaping filter architecture for SSB/BPSK-DS/CDMA is proposed. The filter satisfies the specifications in IS-95. The proposed architecture is based on polyphase decomposition and a look-up table method. By exploiting the linear phase property of the decomposed filter coefficients, the chip area required for the look-up table can be reduced by half compared with the conventional methods. By Synopsys simulations, it is shown that the use of the proposed method can result in a reduction in the number of gates by 43%
Keywords :
FIR filters; circuit simulation; code division multiple access; digital filters; interference suppression; intersymbol interference; linear phase filters; network synthesis; phase shift keying; pulse shaping; radiofrequency filters; spread spectrum communication; table lookup; IS-95; ISI minimisation; SSB/BPSK-DS/CDMA; Synopsys simulations; chip area; decomposed filter coefficients; interpolation FIR filter; intersymbol interference; linear phase property; look-up table; polyphase decomposition; pulse-shaping filter design; transversal FIR filter; Amplitude modulation; Design methodology; Electronic circuits; Finite impulse response filter; Information filtering; Interpolation; Multiaccess communication; Pulse shaping methods; Table lookup; Transversal filters;
Conference_Titel :
Signal Processing Systems, 2000. SiPS 2000. 2000 IEEE Workshop on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-6488-0
DOI :
10.1109/SIPS.2000.886739
