Title :
Digital cellular system with linear modulation
Author :
Ono, Shigeru ; Kondoh, Noriaki ; Shimazaki, Yoshihito
Author_Institution :
Oki Electr. Ind. Co. Ltd., Tokyo, Japan
Abstract :
The authors describe a digital cellular system with linear modulation. They discuss two kinds of modulation schemes-QPSK (quadrative phase-shift keying) and π/4 shift QPSK, and two kinds of detection schemes-coherent detection and limiter-discriminator detection. The features of these modulation/detection schemes are clarified. From the collective point of view, the π/4 shift QPSK/limiter-discriminator detection is judged to be the most advantageous. Next, the authors show examples of the radio link design for a digital cellular system with linear modulation. The system could be constructed at a transmission power of 100-200 mW. Finally, the breadboard equipment configuration and the experimental results are shown
Keywords :
cellular radio; digital radio systems; phase shift keying; π/4 shift QPSK; 100 to 200 mW; QPSK; cellular radio; coherent detection; digital cellular system; limiter-discriminator detection; linear modulation; quadrative phase shift keying; radio link design; Bandwidth; Bit error rate; Chirp modulation; Communication industry; Digital communication; Digital modulation; Frequency; Laboratories; Quadrature phase shift keying; Radio link;
Conference_Titel :
Vehicular Technology Conference, 1989, IEEE 39th
Conference_Location :
San Francisco, CA
DOI :
10.1109/VETEC.1989.40048
