The M/G/1 queue with processor sharing and its relation to a feedback queue
Queueing Systems: Theory and Applications
TCP/IP illustrated (vol. 1): the protocols
TCP/IP illustrated (vol. 1): the protocols
Waiting Time Distributions for Processor-Sharing Systems
Journal of the ACM (JACM)
Statistical bandwidth sharing: a study of congestion at flow level
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
A survey on statistical bandwidth sharing
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: In memroy of Olga Casals
Sojourn time asymptotics in processor-sharing queues
Queueing Systems: Theory and Applications
Comparison of Throughput Performance for the IEEE 802.11a and 802.11g Networks
AINA '07 Proceedings of the 21st International Conference on Advanced Networking and Applications
On processor sharing and its applications to cellular data network provisioning
Performance Evaluation
Throughput Performance of Saturated 802.11g Networks
AUSWIRELESS '07 Proceedings of the The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications
Deployable multipath communication scheme with sufficient performance data distribution method
Computer Communications
Multi-service traffic profiles to realise and maintain QoS guarantees in wireless LANs
Computer Communications
A queueing model for HTTP traffic over IEEE 802.11 WLANs
Computer Networks: The International Journal of Computer and Telecommunications Networking
TCP in wireless environments: problems and solutions
IEEE Communications Magazine
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
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Today, a wide range of 802.11-based Wireless LANs (WLANs) have become dominant to provide wireless Internet access for file transfers. For engineering purposes, there is a need for very simple, explicit, yet accurate, models that predict the performance of WLANs under anticipated load conditions. In this context, several detailed packet-level models have been proposed, based on fixed-point equations. Despite the fact that these models generally lead to accurate performance predictions, they do not lead to simple explicit expressions for the performance of WLANs. Motivated by this, we propose a new analytic model that captures the highly complex combined dynamics and protocol overhead of the 802.11 MAC, IP, TCP and application-layer into an explicit expression for a single parameter which will be called the effective service time. Based on the effective service time, we define the effective load to describe the flow-level performance of file transfers over WLANs with an M/G/1 Processor Sharing (PS) model. Using the M/G/1 PS model properties we propose a simple analytic model to obtain WLAN AP buffer content distribution. Despite the fact that PS models are heavily used in modelling flow-level performance in communication networks, an extensive validation of such models has not been published in the field, or context, of WLAN. To this end, our model is validated extensively by comparing the model-based average response times against simulations. The results show that the model leads to highly accurate predictions over a wide range of parameter combinations, including light- and heavy-tailed file-size distributions and light- and heavy-load scenarios. The simplicity and accuracy of the model make the results of high practical relevance and useful for performance engineering purposes.