JPL's Wireless Communication Reference Website

Chapter: Network Concepts and Standards
Section: Data Systems


Cellular Digital Packet Data (CDPD)

CDPD is a system for packet data transmission that uses idle voice channels of the AMPS or IS-54 U.S. cellular phone system. Applications of CDPD include The channel bit rate is 19.2 kbits/s. The maximum effective data throughput is The Medium Access Protocol uses a type of ISMA: packet contention, with busy/idle feedback. Radio access may incur delays because of

CDPD Transmission Aspects

Network Architecture


The CDPD network architecture involves



JPL's Wireless Communication Reference Website 1993, 1995.