Title :
Multiple access protocol for integration of variable bit rate multimedia traffic in UMTS/IMT-2000 based on wideband CDMA
Author :
Fantacci, Romano ; Nannicini, Saverio
Author_Institution :
Dept. of Electron. & Telecommun., Firenze Univ., Italy
Abstract :
The UMTS terrestrial radio access (UTRA), based on a wideband DS-CDMA technique, fully supports the UMTS requirements and has flexible support for real-time, variable-bit-rate services, as well as an efficient packet mode. This paper presents a description and a performance evaluation of a medium access protocol which may be used in the UTRA system to provide constant-bit-rate (voice), variable bit-rate (video), and low priority data services. The performance evaluation of voice and data services has been carried out by a suitable analytical approach. Simulation results are also shown in order to validate analytical predictions.
Keywords :
Poisson distribution; access protocols; broadband networks; cellular radio; code division multiple access; integrated voice/data communication; multimedia communication; packet radio networks; probability; quality of service; radio access networks; spread spectrum communication; telecommunication traffic; visual communication; Poisson message arrival process; QoS; UMTS terrestrial radio access; UMTS/IMT-2000; UTRA system; cellular communication systems; constant-bit-rate; data message delay; data services; efficient packet mode; geometric message length distribution; low priority data services; medium access protocol; multiple access protocol; performance evaluation; real-time services; simulation results; variable bit rate multimedia traffic integration; variable bit-rate; variable-bit-rate services; voice services; voice/video packet loss probability; wideband CDMA; wideband DS-CDMA; 3G mobile communication; Access protocols; Bit rate; Multiaccess communication; Quality of service; Speech analysis; Streaming media; Telecommunication standards; Traffic control; Wideband;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
