Start-Time Fair Queuing: A Scheduling Algorithm for Integrated ServicesPacket Switching Networks
Start-Time Fair Queuing: A Scheduling Algorithm for Integrated ServicesPacket Switching Networks
WLAN manager (WM): a device for performance management of a WLAN
International Journal of Network Management
Computer Networks: The International Journal of Computer and Telecommunications Networking
TCP fairness issues in IEEE 802.11 wireless LANs
Computer Communications
A wired router can eliminate 802.11 unfairness, but it's hard
Proceedings of the 9th workshop on Mobile computing systems and applications
TCP Fairness Issues in IEEE 802.11 Networks: Problem Analysis and Solutions Based on Rate Control
IEEE Transactions on Wireless Communications
Review: A comprehensive survey on scheduler for VoIP over WLAN
Journal of Network and Computer Applications
IEEE/ACM Transactions on Networking (TON)
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In our earlier work ([1]) we proposed WLAN Manager (or WM) a centralised controller for QoS management of infrastructure WLANs based on the IEEE 802.11 DCF standards. The WM approach is based on queueing and scheduling packets in a device that sits between all traffic flowing between the APs and the wireline LAN, requires no changes to the AP or the STAs, and can be viewed as implementing a "Split-MAC" architecture. The objectives of WM were to manage various TCP performance related issues (such as the throughput "anomaly" when STAs associate with an AP with mixed PRY rates, and upload-download unfairness induced by finite AP buffers), and also to serve as the controller for VoIP admission control and handovers, and for other QoS management measures. In this paper we report our experiences in implementing the proposals in (1): the insights gained, new control techniques developed, and the effectiveness of the WM approach in managing TCP performance in an infrastructure WLAN. We report results from a hybrid experiment where a physical WM manages actual TCP controlled packet flows between a server and clients, with the WLAN being simulated, and also from a small physical testbed with an actual AP.