IJIRCSTJournal International Journal of Innovative Research in Computer Science and Technology I S Volume 3 Issue 1 electronics and telecommunication Engg English January - February 2015 N N Y 2019 11 28 Computer Sciences Channel Spectral Efficiencies of Digital Cellular Standards English Y 81 85 SugandhaJain English Y . English N In this paper, spectral efficiencies of three digital cellular standards is illustrated. Spectral efficiencies refer to the information rate that can be transmitted over a bandwidth in a specific communication system. Spectral efficiencies of three digital cellular standard, The European TDMA digital cellular standard (GSM) , The North American digital cellular standard ( IS 54) , and The Japanese digital cellular standard (PDC). English TDMA (Time division multiple access), GMSK (Gaussian minimum phase shift keying), DQPSK(Demodulation Quadrature Phase Shift Keying),PDC (Pacific digital cellular). https://ijircst.org/abstract.php?article_id=149