Title :
Radio channel structure for SCPC/FDMA digital mobile systems
Author :
Nakajima, Nobuo ; Kinoshita, Kota
Author_Institution :
Radio Commun. Syst. Lab., NTT, Take, Yokosuka-shi, Japan
Abstract :
For an SCPC/FDMA digital mobile radio system, a channel structure supporting ISDN services is described. Three kinds of radio channels are proposed offering ISDN services with efficient spectrum utilization. They are: an information channel, control channel, and packet channel. The effects of diversity and FEC (forward error correction) are discussed for the improvement of digital transmission quality and frequency spectrum utilization. Some studies are presented regarding quality objectives for bearer services under multipath fading environments
Keywords :
ISDN; digital communication systems; frequency division multiplexing; mobile radio systems; multi-access systems; telecommunication channels; FEC; ISDN; SCPC/FDMA; bearer services; channel structure; control channel; digital mobile radio system; digital transmission quality; diversity effects; efficient spectrum utilization; forward error correction; frequency spectrum utilization; information channel; multipath fading; packet channel; radio channels; Bit rate; Fading; Forward error correction; Frequency diversity; Frequency division multiaccess; ISDN; Land mobile radio; Packet switching; Radio communication; Switching circuits;
Conference_Titel :
Vehicular Technology Conference, 1988, IEEE 38th
Conference_Location :
Philadelphia, PA
DOI :
10.1109/VETEC.1988.195428
