Title :
New SAW-convolver demodulation techniques for very-high-speed CDMA communications
Author :
Hikita, Mitsutaka ; Takubo, Chizaki ; Asai, Kengo
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
New SAW-convolver demodulation techniques for very-high-speed CDMA communications were proposed. QPSK-CDMA signals of 9 Mbps with 60 Mcps and 11 Mbps with 140 Mcps were clearly demodulated, which showed the techniques would be very powerful for future CDMA communications
Keywords :
cellular radio; code division multiple access; demodulation; quadrature phase shift keying; radio equipment; surface acoustic wave convolution; 11 Mbit/s; 140 MHz; 60 MHz; 9 Mbit/s; QPSK-CDMA signals; SAW-convolver demodulation techniques; very-high-speed CDMA communications; Bandwidth; CMOS technology; Convolvers; Delay; Demodulation; Land mobile radio cellular systems; Matched filters; Multiaccess communication; Quadrature phase shift keying; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762168
