Title :
An overview of air interface multiple access for IMT-2000/UMTS
Author :
Ojanpera, Tero ; Prasad, Ramjee
Author_Institution :
Nokia Res. Center, Espoo, Finland
fDate :
9/1/1998 12:00:00 AM
Abstract :
The basis for any air interface design is how the common transmission medium is shared between users (i.e., multiple access scheme). The underlying multiple access method for all mobile radio systems is FDMA. The performance of TDMA and CDMA has been subject to vigorous debate, without any definitive conclusions. This article gives an overview of worldwide research and standardization activities related to the multiple access schemes for third-generation mobile communications systems IMT-2000 and UMTS
Keywords :
broadband networks; cellular radio; code division multiple access; frequency division multiplexing; land mobile radio; modulation; network interfaces; research initiatives; standardisation; telecommunication standards; time division multiple access; CDMA; FDMA; IMT-2000; OFDM; UMTS; W-CDMA; air interface design; air interface multiple access; cellular radio; hybrid schemes; mobile radio systems; multiple access method; performance; standardization activities; standards; third-generation mobile communications systems; worldwide research; 3G mobile communication; Bit rate; Frequency division multiaccess; GSM; Land mobile radio; Mobile communication; Multiaccess communication; Proposals; Standardization; Standards organizations; Telecommunication standards; Time division multiple access; Wideband;
Journal_Title :
Communications Magazine, IEEE
