Stability of binary exponential backoff
Journal of the ACM (JACM)
Modeling TCP throughput: a simple model and its empirical validation
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Fluid-based analysis of a network of AQM routers supporting TCP flows with an application to RED
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit
IEEE/ACM Transactions on Networking (TON)
Performance Guarantees in Communication Networks
Performance Guarantees in Communication Networks
Fluid models and solutions for large-scale IP networks
SIGMETRICS '03 Proceedings of the 2003 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
A fast simulation framework for IEEE 802.11-operated wireless LANs
Proceedings of the joint international conference on Measurement and modeling of computer systems
Enabling theoretical model based techniques for simulating large scale networks
Enabling theoretical model based techniques for simulating large scale networks
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
IEEE 802.11 protocol: design and performance evaluation of an adaptive backoff mechanism
IEEE Journal on Selected Areas in Communications
On the convolution of Pareto and gamma distributions
Computer Networks: The International Journal of Computer and Telecommunications Networking
Enabling network calculus-based simulation for TCP congestion control
Computer Networks: The International Journal of Computer and Telecommunications Networking
Fast performance assessment of IEEE 802.11-based wireless networks
Mathematical and Computer Modelling: An International Journal
Simulating CSMA/CA behavior for performance evaluation of multi-hop wireless networks
Proceedings of the 2012 IEEE 20th International Workshop on Quality of Service
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In this paper, we address the issue of integrating packet-level simulation with fluid-model-based simulation for IEEE 802.11-operated wireless LANs (WLANs), so as to combine the performance gain of the latter with the accuracy and packet-level detail afforded by the former. In mixed-mode simulation, foreground flows operate in the packet mode, while the other background flows are approximated into a collection of fluid chunks and simulated in the fluid mode. As these two types of flows influence each other at the point of interaction, e.g. the wireless channel in a WLAN, we derive the model of interaction at the wireless medium. We then implement mixed-mode simulation in ns-2 as well as MATLAB, and conduct a comprehensive simulation study to evaluate its performance with respect to the capability of keeping track of network dynamics (in terms of the TCP behavior), accuracy (in terms of the error discrepancy in throughput), and efficiency (in terms of the speed-up in carrying out simulation). Simulation results indicate that, for IEEE 802.11-operated WLANs, mixed-mode simulation significantly expedites the simulation, and yet provides the same level of packet details and accuracy as packet-level simulation does for flows of interest. Specifically, the error discrepancy incurred in mixed-mode simulation is within 2% of the maximum channel bandwidth, and reduces the execution time, in the best case, by two orders of magnitude.