Processor-sharing queues: some progress in analysis
Queueing Systems: Theory and Applications
Self-similarity in World Wide Web traffic: evidence and possible causes
Proceedings of the 1996 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Wireless downlink data channels: user performance and cell dimensioning
Proceedings of the 9th annual international conference on Mobile computing and networking
HSDPA flow level performance: the impact of key system and traffic aspects
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Traffic aided opportunistic scheduling for wireless networks: algorithms and performance bounds
Computer Networks: The International Journal of Computer and Telecommunications Networking
User-level performance of channel-aware scheduling algorithms in wireless data networks
IEEE/ACM Transactions on Networking (TON)
Measurement-based opportunistic scheduling for heterogenous wireless systems
IEEE Transactions on Communications
Impact of size-based scheduling on flow level performance in wireless downlink data channels
ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
Asymptotically fair transmission scheduling over fading channels
IEEE Transactions on Wireless Communications
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
File transmission over wireless fast fading downlink
IEEE Transactions on Information Theory
A modeling framework for optimizing the flow-level scheduling with time-varying channels
Performance Evaluation
On the optimal trade-off between SRPT and opportunistic scheduling
Proceedings of the ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
On the optimal trade-off between SRPT and opportunistic scheduling
ACM SIGMETRICS Performance Evaluation Review - Performance evaluation review
EFD: an efficient low-overhead scheduler
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part II
Stability and asymptotic optimality of opportunistic schedulers in wireless systems
Proceedings of the 5th International ICST Conference on Performance Evaluation Methodologies and Tools
Optimal size-based opportunistic scheduler for wireless systems
Queueing Systems: Theory and Applications
Scheduling in a random environment: stability and asymptotic optimality
IEEE/ACM Transactions on Networking (TON)
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HSDPA/HDR systems allow the use of sophisticated opportunistic schedulers that can utilize information on instantaneous channel conditions. On the other hand, for elastic data traffic the size of the files can be used in size-dependent scheduling methods, e.g., the well known SRPT scheduler, to minimize the flow delays. In this paper, we consider the optimal use of both size and channel information for minimizing the flow delay. We derive several heuristics which utilize both types of information. In a static setting with two flows and two rates, the optimal policy can be constructed via dynamic programming and can be compared against the policies using exact size knowledge. In the dynamic setting (stochastically arriving flows with random sizes), extensive simulations have been performed to evaluate the performance of the schedulers under heavy traffic. In the symmetric setting, the differences between the schedulers are clearly visible, while in the asymmetric setting the dynamics are more complex. The results still show that significant gains can be achieved with additionally using size information.