Title :
FPGA implementation of IS-95 CDMA baseband filter
Author :
Lian, Yong ; Hwee, Poh Meng
Author_Institution :
Electr. & Comput. Eng. Dept., Nat. Univ. of Singapore, Singapore
Abstract :
In this paper, a new FIR filter structure is proposed to implement the pulse-shaping filter for IS-95 Code Division Multiple Access (CDMA) systems. The success of the proposed structure is based on the clever combination of the even and odd length filters. It is shown that the new structure leads to an 37.5% savings in the number of multiplier when applied it to design an IS-95 CDMA baseband filter. The Xilinx FPGA implementation shows that the new structure leads to much smaller design compared to the traditional filter implementation
Keywords :
FIR filters; code division multiple access; field programmable gate arrays; pulse shaping circuits; FIR filter; IS-95 CDMA baseband filter; Xilinx FPGA; pulse shaping filter; Band pass filters; Baseband; Delay; Field programmable gate arrays; Finite impulse response filter; Frequency response; Multiaccess communication; Passband; Shape; Signal processing algorithms;
Conference_Titel :
ASIC, 2001. Proceedings. 4th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-6677-8
DOI :
10.1109/ICASIC.2001.982588
