GSM vs DCS vs PDC-Difference between GSM,DCS,PDC standards

This page on GSM vs DCS vs PDC describes difference between GSM, DCS and PDC standards. GSM is the short form of Global System for Mobile Communication. DCS is the short form of Digital Communication System. PDC is the short form of Personal Digital Cellular standard.

GSM

The following are features of GSM standard.
•  Mobile frequency range in MHz : 869 to 894 (Rx) & 824 to 849 (Tx) for GSM 850 925 to 960 (Rx) & 880 to 915 (Tx) for GSM 900, 1805 to 1880 (Rx) & 1710 to 1785 (Tx) for DCS1800 , 1930 to 1990 (Rx) & 1850 to 1910 (Tx) for PCS1900
•  Duplex Scheme : FDD
•  Multiple Access Technique : TDMA/FDM
•  No. of channels : 124
•  No. of users per channel : 8
•  Spacing between RF channels : 200 KHz
•  Modulation type : GMSK with 0.3 Gaussian filter, 8 PSK for EDGE/EGPRS
•  Channel data bit rate : 270.833 Kbps

DCS

The following are features of DCS standard.
•  Mobile frequency range in MHz : 1805 to 1880 (receive) and 1710 to 1785 (transmit)
•  Duplex Scheme : FDD
•  Multiple Access Technique : TDMA/FDM
•  No. of channels : 374
•  Spacing between RF channels : 200 KHz
•  Modulation type : GMSK with 0.3 Gaussian filtering
•  Channel data bit rate : 270.833 Kbps

PDC

The following are features of PDC standard.
•  Mobile frequency range in MHz : 810 to 826 (Receive) & 940 to 956 (Transmit) , 1429 to 1453 (Receive) & 1477 to 1501 ( Transmit)
•  Duplex Scheme : FDD
•  Multiple Access Technique : TDMA/FDM
•  No. of channels : 1600
•  No. of users per channel : 3
•  Spacing between RF channels : 25 KHz
•  Modulation type : pi/4 DQPSK
•  Channel data bit rate : 42 Kbps

GSM RELATED LINKS

What is Difference between

RF and Wireless Terminologies