Measured capacity of an Ethernet: myths and reality
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Multiple access protocols: performance and analysis
Multiple access protocols: performance and analysis
A comparison of mechanisms for improving TCP performance over wireless links
IEEE/ACM Transactions on Networking (TON)
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
A wireless fair service algorithm for packet cellular networks
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Analysis of a local-area wireless network
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Distributed fair scheduling in a wireless LAN
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Ethernet: distributed packet switching for local computer networks
Communications of the ACM
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
Analysis of a campus-wide wireless network
Proceedings of the 8th annual international conference on Mobile computing and networking
Throughput capacity of random ad hoc networks with infrastructure support
Proceedings of the 9th annual international conference on Mobile computing and networking
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
TCP in wired-cum-wireless environments
IEEE Communications Surveys & Tutorials
The capacity of wireless networks
IEEE Transactions on Information Theory
TCP performance issues over wireless links
IEEE Communications Magazine
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
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
The need for cross-layer information in access point selection algorithms
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Novel collision detection scheme and its applications for IEEE 802.11 wireless LANs
Computer Communications
Understanding the effect of access point density on wireless LAN performance
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Passive classification of wireless NICs during rate switching
EURASIP Journal on Wireless Communications and Networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
International Journal of Ad Hoc and Ubiquitous Computing
Throughput analysis of IEEE 802.11 WLANs with automatic rate fallback in a lossy channel
IEEE Transactions on Wireless Communications
Cognitive network access using fuzzy decision making
IEEE Transactions on Wireless Communications
Idle detection based optimal throughput rate adaptation in multi-rate WLANs
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Local estimation of probabilities of direct and staggered collisions in 802.11 WLANs
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Collision-Aware Rate Adaptation in multi-rate WLANs: Design and implementation
Computer Networks: The International Journal of Computer and Telecommunications Networking
REACT: Rate Adaptation using Coherence Time in 802.11 WLANs
Computer Communications
On the uplink performance of TCP in multi-rate 802.11 WLANs
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part II
Period-controlled MAC for high performance in wireless networks
IEEE/ACM Transactions on Networking (TON)
Overcoming performance pitfalls in rate-diverse high speed WLANs
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Wide-spread deployment of infrastructure WLANs has made Wi-Fi an integral part of today's Internet access technology. Despite its crucial role in affecting end-to-end performance, past research has focused on MAC protocol enhancement, analysis and simulation-based performance evaluation without sufficient consideration for modeling inaccuracies stemming from inter-layer dependencies, including physical layer diversity, that significantly impact performance. We take a fresh look at IEEE 802.11 WLANs, and using a combination of experiment, simulation, and analysis demonstrate its surprisingly agile performance traits. Our main findings are two-fold. First, contention-based MAC throughput degrades gracefully under congested conditions, enabled by physical layer channel diversity that reduces the effective level of MAC contention. In contrast, fairness and jitter significantly degrade at a critical offered load. This duality obviates the need for link layer flow control for throughput improvement but necessitates traffic control for fairness and QoS. Second, TCP-over-WLAN achieves high throughput commensurate with that of wireline TCP under saturated conditions, challenging the widely held perception that TCP throughput fares poorly over WLANs when subject to heavy contention. We show that TCP-over-WLAN prowess is facilitated by the self-regulating actions of DCF and TCP congestion control that jointly drive the shared physical channel at an effective load of 2--3 wireless stations, even when the number of active stations is very large. Our results highlight subtle inter-layer dependencies including the mitigating influence of TCP-over-WLAN on dynamic rate shifting.