A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
A capacity analysis for the IEEE 802.11 MAC protocol
Wireless Networks
Opportunistic media access for multirate ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Analysis of a campus-wide wireless network
Proceedings of the 8th annual international conference on Mobile computing and networking
Theoretical Maximum Throughput of IEEE 802.11 and its Applications
NCA '03 Proceedings of the Second IEEE International Symposium on Network Computing and Applications
End-to-end differentiation of congestion and wireless losses
IEEE/ACM Transactions on Networking (TON)
An empirical analysis of the IEEE 802.11 MAC layer handoff process
ACM SIGCOMM Computer Communication Review
A framework for wireless LAN monitoring and its applications
Proceedings of the 3rd ACM workshop on Wireless security
Characterizing flows in large wireless data networks
Proceedings of the 10th annual international conference on Mobile computing and networking
The changing usage of a mature campus-wide wireless network
Proceedings of the 10th annual international conference on Mobile computing and networking
Broadcast reception rates and effects of priority access in 802.11-based vehicular ad-hoc networks
Proceedings of the 1st ACM international workshop on Vehicular ad hoc networks
Characterizing mobility and network usage in a corporate wireless local-area network
Proceedings of the 1st international conference on Mobile systems, applications and services
Measurement-based characterization of 802.11 in a hotspot setting
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Understanding link-layer behavior in highly congested IEEE 802.11b wireless networks
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Performance analysis under finite load and improvements for multirate 802.11
Computer Communications
Analyzing the MAC-level behavior of wireless networks in the wild
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
IQU: practical queue-based user association management for WLANs
Proceedings of the 12th annual international conference on Mobile computing and networking
Automating cross-layer diagnosis of enterprise wireless networks
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Remote analysis of a distributed WLAN using passive wireless-side measurement
Performance Evaluation
Understanding the effect of access point density on wireless LAN performance
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Experiences in deploying a wireless mesh network testbed for traffic control
ACM SIGCOMM Computer Communication Review
Understanding wifi-based connectivity from moving vehicles
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Understanding handoffs in large ieee 802.11 wireless networks
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Do nintendo handhelds play nice?: An analysis of its wireless behavior
Proceedings of the 6th ACM SIGCOMM workshop on Network and system support for games
Computer Networks: The International Journal of Computer and Telecommunications Networking
Analysis of a mixed-use urban wifi network: when metropolitan becomes neapolitan
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Design, implementation and evaluation of an efficient opportunistic retransmission protocol
Proceedings of the 15th annual international conference on Mobile computing and networking
Using active queue management to enhance performance in IEEE802.11
Proceedings of the 4th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
Licensed or unlicensed: the economic considerations in incremental spectrum allocations
IEEE Communications Magazine
An experimental study on wi-fi ad-hoc mode for mobiledevice-to-device video delivery
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
WiPal: efficient offline merging of IEEE 802.11 traces
ACM SIGMOBILE Mobile Computing and Communications Review
Green WLANs: On-Demand WLAN Infrastructures
Mobile Networks and Applications
Haggle: seamless networking for mobile applications
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
Refocusing in 802.11 wireless measurement
PAM'08 Proceedings of the 9th international conference on Passive and active network measurement
SCUBA: focus and context for real-time mesh network health diagnosis
PAM'08 Proceedings of the 9th international conference on Passive and active network measurement
Malware in IEEE 802.11 wireless networks
PAM'08 Proceedings of the 9th international conference on Passive and active network measurement
Detecting greedy behaviors by linear regression in wireless ad hoc networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
An interface management framework for multihomed terminal
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
Scheduling and congestion control for fair bandwidth allocation in wireless LANs
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
Supporting demanding wireless applications with frequency-agile radios
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Delay monitoring for wireless sensor networks: an architecture using air sniffers
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Listen (on the frequency domain) before you talk
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
A cross-layer approach to detect jamming attacks in wireless ad hoc networks
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
AirLab: consistency, fidelity and privacy in wireless measurements
ACM SIGCOMM Computer Communication Review
Trace-based mobility modeling for multi-hop wireless networks
Computer Communications
Usage patterns in an urban WiFi network
IEEE/ACM Transactions on Networking (TON)
A location-based management system for enterprise wireless LANs
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Degradation of communication range in VANETs caused by interference 2.0 - real-world experiment
Nets4Cars/Nets4Trains'11 Proceedings of the Third international conference on Communication technologies for vehicles
No time to countdown: migrating backoff to the frequency domain
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
Channel sensing strategy for channel load estimation
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Timeout-based adaptive consensus: improving performance through adaptation
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Semi-random backoff: towards resource reservation for channel access in wireless LANs
IEEE/ACM Transactions on Networking (TON)
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The growing popularity of wireless networks has led to cases of heavy utilization and congestion. In heavily utilized wireless networks, the wireless portion of the network is a major performance bottleneck. Understanding the behavior of the wireless portion of such networks is critical to ensure their robust operation. This understanding can also help optimize network performance. In this paper, we use link layer information collected from an operational, large-scale, and heavily utilized IEEE 802.11b wireless network deployed at the 62nd Internet Engineering Task Force (IETF) meeting to study congestion in wireless networks. We motivate the use of channel busy-time as a direct measure of channel utilization and show how channel utilization along with network throughput and goodput can be used to define highly congested, moderately congested, and uncongested network states. Our study correlates network congestion and its effect on link-layer performance. Based on these correlations we find that (1) current rate adaptation implementations make scarce use of the 2 Mbps and 5.5 Mbps data rates, (2) the use of Request-to-Send/Clear-to-Send (RTS-CTS) prevents nodes from gaining fair access to a heavily congested channel, and (3) the use of rate adaptation, as a response to congestion, is detrimental to network performance.