Title :
Spectrally efficient digital UHF mobile system
Author :
Bolgiano, D. Ridgely
Abstract :
It is maintained that the cellular capacity problem can be solved by a TDM/TDMA system now used in the BETR (basic exchange telephone radio) service. 16 kb/s modified ´RELP´ voice compression with 64 kb/s QPSK transmission provides four voice paths backwardly compatible with single NBFM analog circuits. All transcoding and modern functions are done by a single DSP
Keywords :
cellular radio; digital communication systems; time division multiplexing; 16 kbit/s; 64 kbit/s; DSP; QPSK transmission; RELP voice compression; TDM/TDMA system; UHF; backward compatibility; cellular radio; digital mobile radio system; modern functions; spectrally efficient system; spectrum efficiency; transcoding; Binary phase shift keying; Digital signal processing; FCC; Land mobile radio cellular systems; Phase modulation; Quadrature phase shift keying; Radio frequency; Switches; TV; Telephony;
Conference_Titel :
Vehicular Technology Conference, 1988, IEEE 38th
Conference_Location :
Philadelphia, PA
DOI :
10.1109/VETEC.1988.195446
