Title :
A WCDMA multipath searcher based on a Wave Pipeline method
Author :
Laporte, Pierre-André ; Massicotte, Daniel ; Wang, Chunyan ; Ahmed-Ouameur, Messaoud
Author_Institution :
Electr. & Comput. Eng. Dept., Concordia Univ., Montreal, QC
Abstract :
In this paper, we present the wave pipeline implementation of a multiplier-accumulator that processes complex numbers for high-speed signal processing in the third generation cellular systems. Since the multiplier-accumulator is one of the most computationally intensive and power hungry blocks in the multipath searcher, there is a need to develop high performance and low power arithmetic units. The complementary pass-logic transmission-gate (CPL-TG) has been used as a universal cell for the creation of conventional logic gates. The developed complex multiplier-accumulator (CMAC) processes four inputs of 8 bits at a rate of 500 Mb/s using a 0.18 mum technology.
Keywords :
cellular radio; code division multiple access; logic gates; multiplying circuits; 3G cellular systems; WCDMA multipath searcher; bit rate 500 Mbit/s; complementary pass-logic transmission-gate; complex multiplier accumulator; high-speed signal processing; logic gates; pipeline method; size 0.18 mum; wave pipeline; word length 8 bit; Arithmetic; Delay; Fading; High performance computing; Logic gates; Multiaccess communication; Pipelines; Power engineering and energy; Power engineering computing; Signal processing;
Conference_Titel :
Circuits and Systems, 2007. NEWCAS 2007. IEEE Northeast Workshop on
Conference_Location :
Montreal, Que
Print_ISBN :
978-1-4244-1163-4
Electronic_ISBN :
978-1-4244-1164-1
DOI :
10.1109/NEWCAS.2007.4488008
