Title :
Some performance results for the downlink shared channel in WCDMA
Author :
Qiu, X. ; Chang, L. ; Kostic, Z. ; Willis, T.M., III ; Mehta, N. ; Greenstein, L.J. ; Chawla, K. ; Whitehead, J.F. ; Chuang, J.
Abstract :
We study the data performance of WCDMA systems using the downlink shared channel (DSCH) by investigating the impact of loading, rate adaptation and power control for the typical urban (TU) channel. We conclude that, using DSCH, high speed data transmissions can be achieved if the offered traffic load is well controlled. We discuss a heuristic rate adaptation algorithm that adapts the transmission rate based upon the perceived user performance in previous frames. We show that the performance of the rate adaptation is significantly better than that for the fixed-rate allocation policy
Keywords :
cellular radio; code division multiple access; power control; resource allocation; telecommunication channels; telecommunication congestion control; QoS guarantees; WCDMA; cellular radio; downlink shared channel; fixed-rate allocation; power control; quality of service guarantees; rate adaptation; resource allocation; traffic load control; typical urban channel; Circuits; Data communication; Downlink; Heuristic algorithms; Laboratories; Multiaccess communication; Power control; Quality of service; Telecommunication traffic; Time division multiplexing;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996879
