Title :
A new architecture of matched-filter bank for high-speed code acquisition of ZCZ-CDMA system
Author :
Guo, Xiuoxu ; Chen, Jie ; Qui, Yulin ; Suehiro, Nuoki
Author_Institution :
Microelectron. R&D Center, Chinese Acad. of Sci., Beijing, China
Abstract :
We propose a new architecture of matched-filter (MF) bank for the code acquisition of ZCZ-CDMA system. The ZCZ-CDMA system can accurately detect multipath properties and greatly improve data transmission efficiency by using the special properties of the zero correlation zones (ZCZ) sequence. As a traditional matched-filter bank is used to carry out the code acquisition and the despreading operations to realize the information transmission at 20Mbps in the ZCZ-CDMA system, the circuit scale is too large and the power consumption is too high. Using our proposed new matched-filter bank, the circuit scale and the power consumption is greatly reduced. The high-speed and lower power VLSI design of the new matched-filter bank is implemented on FPGA.
Keywords :
code division multiple access; field programmable gate arrays; matched filters; multipath channels; FPGA; VLSI design; ZCZ-CDMA system; code division multiple access; code synchronization; field programmable gate arrays; high speed code acquisition; matched-filter bank; power consumption; zero correlation zone; Autocorrelation; Binary sequences; Circuits; Data communication; Energy consumption; Hardware; Matched filters; Multiaccess communication; Signal processing algorithms; Very large scale integration;
Conference_Titel :
Parallel and Distributed Computing, Applications and Technologies, 2003. PDCAT'2003. Proceedings of the Fourth International Conference on
Print_ISBN :
0-7803-7840-7
DOI :
10.1109/PDCAT.2003.1236330
