Adapting packet fair queueing algorithms to wireless networks
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Fair end-to-end window-based congestion control
IEEE/ACM Transactions on Networking (TON)
Rate Performance Objectives of Multihop Wireless Networks
IEEE Transactions on Mobile Computing
The Wireless Hierarchical Token Bucket: A Channel Aware Scheduler for 802.11 Networks
WOWMOM '05 Proceedings of the Sixth IEEE International Symposium on World of Wireless Mobile and Multimedia Networks
Enhancement of a WLAN-based internet service
Mobile Networks and Applications - Special issue: Wireless mobile wireless applications and services on WLAN hotspots
Time-based fairness improves performance in multi-rate WLANs
ATEC '04 Proceedings of the annual conference on USENIX Annual Technical Conference
Enhancing throughput over wireless LANs using channel state dependent packet scheduling
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
Cross-Layer Scheduling with QoS Support over a Distributed Queuing MAC for Wireless LANs
Mobile Networks and Applications
Mitigating performance anomaly of TFRC in multi-rate IEEE 802.11 wireless LANs
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Review: A comprehensive survey on scheduler for VoIP over WLAN
Journal of Network and Computer Applications
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Wireless systems based on the IEEE 802.11 standard are known to suffer a performance degradation when just a single station in the network experiences bad channel conditions toward the Access Point (AP). This phenomenon, known as the "performance anomaly", is mainly due to the max-min throughput fairness of the CSMA/CA algorithm of the 802.11 MAC. The simple FIFO scheduling policy usually implemented in the AP also contributes to this problem. In order to overcome the performance anomaly, we propose the Deficit Transmission Time (DTT) scheduler. The aim of DTT is guaranteeing each station a fair medium usage in terms of transmission time. This feature, directly related to the proportional fairness concept, allows to ideally achieve exact isolation among the traffic flows addressed to different stations. DTT achieves this goal taking advantage of measurements of actual frame transmission times. Experiments carried out using a prototype implementation of DTT are compared with analogous tests performed with a classic FIFO queue of a commercial AP and a recently proposed traffic shaping scheme aimed at solving the same 802.11 performance anomaly.