Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit
IEEE/ACM Transactions on Networking (TON)
Characterizing user behavior and network performance in a public wireless LAN
SIGMETRICS '02 Proceedings of the 2002 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Computer Networking: A Top-Down Approach Featuring the Internet
Computer Networking: A Top-Down Approach Featuring the Internet
Improving protocol capacity with model-based frame scheduling in IEEE 802.11-operated WLANs
Proceedings of the 9th annual international conference on Mobile computing and networking
Wi-Fi in Ad Hoc Mode: A Measurement Study
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
IEEE 802.11b Ad Hoc Networks: Performance Measurements
Cluster Computing
Performance Measurements of the Saturation Throughput in IEEE 802.11 Access Points
WIOPT '05 Proceedings of the Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Performance analysis of IEEE 802.11 MAC protocols in wireless LANs: Research Articles
Wireless Communications & Mobile Computing - Special Issue: Emerging WLAN Apllications and Technologies
SHRiNK: a method for enabling scaleable performance prediction and efficient network simulation
IEEE/ACM Transactions on Networking (TON)
IEEE Transactions on Mobile Computing
International Journal of Communication Systems
Validation of a miniaturized wireless network testbed
Proceedings of the third ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
How well can the IEEE 802.11 wireless LAN support quality of service?
IEEE Transactions on Wireless Communications
CSMA/CA performance under high traffic conditions: throughput and delay analysis
Computer Communications
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
Performance Preserving Topological Downscaling of Internet-Like Networks
IEEE Journal on Selected Areas in Communications
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The IEEE 802.11 MAC protocol has gained widespread popularity and has been adopted as the de-facto layer 2 protocol for wireless local area networks (WLANs). However, it is well known that as the number of competing stations increases, the performance of the protocol degrades dramatically. Given the explosive growth in WLANs' usage, the question of how to sustain each user's perceived performance when a large number of competing stations are present, is an important and challenging open research problem. Motivated by this, in this paper we analyze the behavior of 802.11-based WLANs as the number of competing stations increases, and attempt to provide concrete answers to the following fundamental questions: (i) is there a set of system and protocol parameters that we can scale in order to sustain each individual user's perceived performance, and (ii) what is the minimum scaling factor? Using theoretical analysis coupled with extensive simulations we show that such a set of parameters exists, and that the minimum scaling factor is equal to the factor by which the number of users increases. Our results reveal several important scaling properties that exist in today's 802.11-based wireless networks, and set guidelines for designing future versions of such networks that can efficiently support a very large number of users.