Title :
Channel predictive proportional fair scheduling
Author :
Bang, Hans Jørgen ; Ekman, Torbjörn ; Gesbert, David
Author_Institution :
Univ. of Oslo, Oslo
fDate :
2/1/2008 12:00:00 AM
Abstract :
Recent work on channel modeling and prediction has shown the feasibility of predicting the mobile radio channel, quite accurately, several milliseconds ahead in time for realistic Doppler spreads. Motivated by these results we consider opportunistic scheduling algorithms that exploit both current and future channel estimates. We demonstrate how this extra channel information can be used to improve the scheduling. Simulations show that the proposed algorithm can improve the inherent tradeoff between throughput, fairness and delay. The current approach builds on proportional fair scheduling but can also be generalized to other criteria.
Keywords :
channel estimation; mobile radio; scheduling; wireless channels; channel estimates; channel information; channel modeling; channel prediction; channel predictive proportional fair scheduling; mobile radio channel; opportunistic scheduling algorithms; realistic Doppler spreads; Delay; Diversity reception; Downlink; Fading; Feedback; Land mobile radio; Predictive models; Resource management; Scheduling algorithm; Throughput;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2008.060729