A Multi-hop Aware Scheduling Mechanism for HSDPA and IEEE 802.11 Integrated Network

Master thesis (2009)

Authors

Contributors

J. Zhou (mentor)
A. Lo (mentor)
I. Niemegeers (mentor)
Department
Telecommunications (EEMCS) (TU Delft)
Copyright: © 2009 Hao, J.
Multi-hop Aware Scheduling HSDPA and IEEE 802.11 integrated network
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Published Date

27-10-2009

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Telecommunications

Abstract

By simulating the integrated networks with multiple gateways and TCP flows, we get the unfairness in the HSDPA and IEEE 802.11 integrated networks. The unfairness has two sources: the HSDPA cellular subnetwork and the IEEE 802.11 subnetwork. A novel scheduling algorithm - Multi-hop Aware Scheduling has been proposed to resolve the unfairness among all the flows over different gateways considering the two subnetworks. A preliminary method is used to collect the optimal parameters in the flow weight formula in our new scheduling algorithm. The new scheduling mechanism indeed improves the fairness of the integrated networks through our validation work. It has made the improvement as much as 12% in certain scenarios in the term of Jain’s fairness index.