Title :
Comparison of multiple access schemes for UMTS
Author :
Ojanperä, Tero ; Sköld, Johan ; Castro, Jonathan ; Girard, Laurent ; Klein, Anja
Author_Institution :
NOKIA Res. Center, Helsinki, Finland
Abstract :
An assessment of several multiple access schemes against UMTS criteria has been carried out within the FRAMES project. Based on this comprehensive evaluation, an harmonized multiple access platform has been designed consisting of two modes, a wideband TDMA with and without spreading and a wideband CDMA, which is presented. Both modes are compared against UMTS criteria. In general, they can both fulfill the UMTS objectives and will form the FRAMES input into UMTS standardization. However, Mode 1 seems more suitable for bursty type of traffic and in addition to FDD for asymmetric TDD operation while Mode 2 suits better for moderately varying circuit switched data in public radio environments
Keywords :
access protocols; broadband networks; cellular radio; circuit switching; code division multiple access; data communication; land mobile radio; radio networks; spread spectrum communication; standardisation; subscriber loops; telecommunication traffic; time division multiple access; FDD; FRAMES project; GSM; UMTS; asymmetric TDD operation; bursty traffic; circuit switched data; multiple access schemes; public radio environments; radio access system; spreading; standardization; wideband TDMA; 3G mobile communication; Bandwidth; Bit rate; Broadband antennas; Electronic mail; Multiaccess communication; Standardization; Telecommunications; Time division multiple access; Wideband;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600375
