Title :
A novel multipath searcher implementation for WCDMA receivers
Author :
Grayver, Eugene ; Eltawil, Ahmed ; Frigon, Jean François ; Shoarinejad, Kambiz ; Abbasfar, Ali-Azam ; Cabric, Danijela
Abstract :
A wideband signal experiences frequency selective fading due to multipath propagation. The multipath searcher must identify the delayed versions of the transmitted signal with low probability of false alarm and misdetection. This paper presents an efficient and novel multipath searcher algorithm and a VLSI architecture that provides a good compromise between complexity, performance, and power consumption. Novel techniques such as time domain interleaving and peak detection are presented.
Keywords :
VLSI; code division multiple access; communication complexity; delay estimation; fading channels; multipath channels; probability; receivers; signal detection; time-varying channels; VLSI architecture; WCDMA receivers; complexity; false alarm; frequency selective fading; misdetection; multipath propagation; novel multipath searcher algorithm; novel multipath searcher implementation; peak detection; power consumption; probability; time domain interleaving detection; transmitted signal; wideband signal; Delay; Energy consumption; Fading; Frequency; Interleaved codes; Multiaccess communication; Signal processing; Transmitters; Very large scale integration; Wideband;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328948
