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Multiuser scheduling in HSDPA using simulated annealing

Kwan, Raymond; Aydin, Mehmet Emin; Leung, Cyril; Zhang, Jie

Authors

Raymond Kwan

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Dr Mehmet Aydin Mehmet.Aydin@uwe.ac.uk
Senior Lecturer in Networks and Mobile Computing

Cyril Leung

Jie Zhang



Abstract

In this paper, the issue of multiuser scheduling in the context of the High Speed Downlink Packet Access (HSDPA) is addressed. Given limited radio resources at the base station, the main challenge is to assign these resources to multiple users at each scheduling period. To perform efficient assignment, channel state information (CSI) for users is required, which can be obtained via their respective feedback channels. Multiuser scheduling is studied in [1], in which the availability of perfect CSI is assumed. However, such an approach incurs a high bandwidth overhead. In this paper, a more realistic imperfect CSI feedback is assumed, which takes the form of a finite set of Channel Quality Indicator (CQI) as specified in the HSDPA standard [2]. A global optimal integer programming and a simulated annealing approaches are proposed in solving the optimization problem. Simulation results show that the performance of the latter approach is very close to that of the former at a much lower complexity. On the other hand, the performance due to a simple greedy approach is significantly worse. © 2008 IEEE.

Citation

Kwan, R., Aydin, M. E., Leung, C., & Zhang, J. (2008). Multiuser scheduling in HSDPA using simulated annealing. In 2008 International Wireless Communications and Mobile Computing Conference. , (236-241). https://doi.org/10.1109/IWCMC.2008.42

Conference Name IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
Conference Location Crete, Greece
Start Date Aug 6, 2008
End Date Aug 8, 2008
Publication Date Oct 6, 2008
Peer Reviewed Peer Reviewed
Pages 236-241
Book Title 2008 International Wireless Communications and Mobile Computing Conference
DOI https://doi.org/10.1109/IWCMC.2008.42
Keywords integer programming, packet radio networks, resource scheduling, simulated annealing, wireless channels
Public URL https://uwe-repository.worktribe.com/output/1010391
Publisher URL http://dx.doi.org/10.1109/IWCMC.2008.42
Additional Information Title of Conference or Conference Proceedings : IWCMC '08. International Wireless Communications and Mobile Computing Conference