Improved flow control and packet scheduling for shared channels in WCDMA
Improved flow control and packet scheduling for shared channels in WCDMA
- Author(s): Zongchuang Liang ; Hua Chao ; Luoning Gui
- DOI: 10.1049/cp:20040633
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- Author(s): Zongchuang Liang ; Hua Chao ; Luoning Gui Source: Fifth IEE International Conference on 3G Mobile Communication Technologies (3G 2004) The Premier Technical Conference for 3G and Beyond, 2004 p. 49 – 53
- Conference: Fifth IEE International Conference on 3G Mobile Communication Technologies (3G 2004) The Premier Technical Conference for 3G and Beyond
- DOI: 10.1049/cp:20040633
- ISBN: 0 86341 388 9
- Location: London, UK
- Conference date: 18-20 Oct. 2004
- Format: PDF
In contemporary wireless networks such as UMTS, one of the important problems is a scheduled sharing of the wireless link for different packet streams, according to a couple of mutually restricted principles, of which one is throughput and the other fairness. In this paper, a rank statistic based hybrid packet scheduling for downlink shared channel (DSCH) in the WCDMA system is presented, which compatibly and simultaneously considers both throughput and fairness principles. Subsequently, simulation results indicate that the proposed algorithm and respective scheme achieves the twin goals of improving throughput and ensuring fairness among the packet flows with the same priority and also guarantees reasonable distinguishing among flows with different priorities. As a conclusion, the proposed scheme has advantages in optimizing resource utilization over the traditional ones originally used in the medium access control (MAC) layer in WCDMA.
Inspec keywords: bandwidth allocation; code division multiple access; 3G mobile communication; telecommunication congestion control; telecommunication traffic; optimisation; scheduling; packet radio networks
Subjects: Optimisation techniques; Mobile radio systems
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