Title :
Pro´s and con´s of TDMA and CDMA for digital cellular networks
Author :
Heger, W. ; Mohr, W.
Author_Institution :
Siemens AG, Munich, Germany
Abstract :
The main differences of today´s TDMA (the GSM system family) and CDMA systems (the IS-95 CDMA) and their relative performance are shown. Technical features like frequency hopping, hand-off, hierarchical cell structures, power control, voice activity detection, equalization and RAKE reception are discussed. The speech coder is shown as the most essential part of a system in terms of quality and capacity. A comparison between the two systems is made for the important parameters of range and capacity from the network operators point of view
Keywords :
cellular radio; channel capacity; code division multiple access; digital radio; equalisers; frequency hop communication; land mobile radio; power control; radio networks; radio receivers; telecommunication control; telecommunication standards; time division multiple access; vocoders; CDMA system; IS-95 CDMA; RAKE reception; TDMA system; digital cellular networks; equalization; frequency hopping; hand-off; hierarchical cell structures; network operators; power control; radio propagation effects; range; speech coder; system capacity; system performance; system quality; voice activity detection; Bandwidth; Europe; Frequency division multiaccess; GSM; Land mobile radio; Land mobile radio cellular systems; Multiaccess communication; Personal communication networks; Proposals; Time division multiple access;
Conference_Titel :
Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2674-1
DOI :
10.1109/SBMOMO.1995.509719
