Title :
MAC units for matched filters in DS-CDMA systems
Author :
Premkumar, A.B. ; Madhukumar, A.S. ; Chin, Francois
Author_Institution :
Sch. of Appl. Sci., Nanyang Technol. Univ., Singapore
Abstract :
High data rates in wireless radio environments are becoming common. Current system designs are inadequate to meet the speed requirements that are anticipated in the newer services. The computational complexities in the subsystems increase in direct proportion. We propose alternative multiply accumulate units for the pulse shaping filters that use a new representation for their coefficients. Consequently, these new structures are fast, efficient and consume less power. The filters proposed take into account constraints, such as, intersymbol interference, response characteristics etc. in their design methodology
Keywords :
VLSI; code division multiple access; computational complexity; digital arithmetic; digital filters; integrated circuit design; intersymbol interference; matched filters; network synthesis; pulse shaping circuits; radiofrequency filters; spread spectrum communication; DS-CDMA systems; MAC units; VLSI; coefficients representation; computational complexities; high data rates; intersymbol interference; matched filters; multiply accumulate units; pulse shaping filters; response characteristics; subsystems; wireless radio environments; Computational complexity; Computer architecture; Digital signal processing chips; Interference; Matched filters; Multiaccess communication; Pulse shaping methods; Transmitters; Very large scale integration; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881605
