Title :
Performance of uplink packet services in WCDMA
Author :
Dimou, Konstantinos ; Rosa, Claudio ; Sørensen, Troels B. ; Wigard, Jeroen ; Mogensen, Preben E.
Author_Institution :
Center for PersonKommunication, Aalborg Univ., Denmark
Abstract :
In this paper, we study the operation of release´99 packet scheduler of the UMTS system. We focus on the uplink direction of data transmission. The aim is to investigate the performance of the packet scheduler data scheduling on dedicated transport channels. We emphasize in particular a power based packet scheduler (PS) with fair resource sharing. The PS performance has been evaluated in a time-dynamic network simulator with packet data users characterized by a bursty source traffic model. We shortly describe the source traffic model and the network simulator. The results concentrate on the uplink noise rise (NR) behavior for different settings of PS related timers and show that a reduction of some of these timers to allow faster scheduling can increase the network capacity. However, the results also demonstrate that this potential capacity gain is achievable only for bursty and high user equipment (UE) source data rate.
Keywords :
3G mobile communication; broadband networks; code division multiple access; data communication; packet radio networks; telecommunication channels; telecommunication traffic; UMTS system; Universal Mobile Telecommunication System; WCDMA; bursty source traffic model; data scheduling; data transmission; dedicated transport channels; fair resource sharing; packet scheduler; potential capacity gain; source data rate; time-dynamic network simulator; uplink noise rise behavior; uplink packet services; user equipment; wideband code division multiple access; 3G mobile communication; Communication system traffic control; Data communication; Downlink; Intelligent networks; Multiaccess communication; Radio control; Resource management; Scheduling algorithm; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207190
