Scheduling algorithms for HS-DSCH in a WCDMA mixed traffic scenario

Author

Kazmi, Muhammad ; Wiberg, Niclas

Author_Institution

Ericsson Res., Stockholm, Sweden

Volume

2

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

1485

Abstract

Several scheduling algorithms are evaluated for the HS-DSCH channel in a WCDMA mixed traffic scenario. The traffic consists of FTP and Web surfing users. The maximum channel quality indicator (CQI) scheme serves users with the highest channel quality. The proportional fairness (PF) scheme tends to be fairer by prioritising users with higher channel quality (lower throughput). The weighted-queue-PF prioritises users with higher channel quality, lower throughput and those with longer queued-time. The results depict that the maximum system throughput is achieved by max CQI scheduling, which is pinch channel dependent. The max CQI scheme is also relatively fair to the FTP users. In case of Web surfing users, the proportionally fair scheduling is as good as the other schemes for the 10% worst users.

Keywords

3G mobile communication; Internet; broadband networks; code division multiple access; queueing theory; scheduling; telecommunication channels; telecommunication traffic; transport protocols; FTP; WCDMA; Web surfing users; channel quality indicator scheme; high speed downlink shared channel; proportional fairness scheme; scheduling algorithms; traffic scenario; Delay effects; Delay systems; Downlink; Measurement errors; Multiaccess communication; Quadrature amplitude modulation; Quadrature phase shift keying; Scheduling algorithm; Throughput; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1260360

Filename

1260360