A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Opportunistic media access for multirate ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
IEEE 802.11 rate adaptation: a practical approach
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Hybrid rate control for IEEE 802.11
Proceedings of the second international workshop on Mobility management & wireless access protocols
A simple mechanism for capturing and replaying wireless channels
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Using emulation to understand and improve wireless networks and applications
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Low-overhead channel-aware rate adaptation
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Using physical layer emulation to understand and improve wireless networks
Using physical layer emulation to understand and improve wireless networks
Understanding link-level 802.11 behavior: replacing convention with measurement
WICON '07 Proceedings of the 3rd international conference on Wireless internet
Proceedings of the 14th ACM international conference on Mobile computing and networking
Cross-layer wireless bit rate adaptation
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Efficient rate adaptation with QoS support in wireless networks
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A model for comparing rate adaptation algorithms
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Design, implementation and evaluation of an efficient opportunistic retransmission protocol
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AGILE Rate Control for IEEE 802.11 Networks
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Robust wireless video streaming using hybrid spatial/temporal retransmission
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Coupled 802.11 flows in urban channels: model and experimental evaluation
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Efficient error estimating coding: feasibility and applications
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Predictable 802.11 packet delivery from wireless channel measurements
Proceedings of the ACM SIGCOMM 2010 conference
Accelerometer-assisted 802.11 rate adaptation on mass rapid transit system
Proceedings of the ACM SIGCOMM 2010 conference
AccuRate: constellation based rate estimation in wireless networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Directional antenna diversity for mobile devices: characterizations and solutions
Proceedings of the sixteenth annual international conference on Mobile computing and networking
MIMO rate adaptation in 802.11n wireless networks
Proceedings of the sixteenth annual international conference on Mobile computing and networking
"Extra-sensory perception" for wireless networks
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
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Improving wireless network performance using sensor hints
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REACT: Rate Adaptation using Coherence Time in 802.11 WLANs
Computer Communications
On the robustness of IEEE 802.11 rate adaptation algorithms against smart jamming
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Revisiting partial packet recovery in 802.11 wireless LANs
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
Strider: automatic rate adaptation and collision handling
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REfactor-ing content overhearing to improve wireless performance
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
A cross-layer design for scalable mobile video
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
Anticipatory wireless bitrate control for blocks
S3 '11 Proceedings of the 3rd ACM workshop on Wireless of the students, by the students, for the students
Seamless rate adaptation for wireless networking
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
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Reclaiming the white spaces: spectrum efficient coexistence with primary users
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Anticipatory wireless bitrate control for blocks
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
Efficient error estimating coding: feasibility and applications
IEEE/ACM Transactions on Networking (TON)
A light-weight wireless handshake
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On the capacity of rate-adaptive packetized wireless communication links under jamming
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A case for adaptive sub-carrier level power allocation in OFDMA networks
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BRAVE: bit-rate adaptation in vehicular environments
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An interference avoidance MAC protocol design in mobile ad hoc networks
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Coupled 802.11 flows in urban channels: model and experimental evaluation
IEEE/ACM Transactions on Networking (TON)
Dynamic ARF for throughput improvement in 802.11 WLAN via a machine-learning approach
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Mitigating multi-path fading in a mobile mesh network
Ad Hoc Networks
Practical opportunistic routing in high-speed multi-rate wireless mesh networks
Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing
Towards MIMO-aware 802.11n rate adaptation
IEEE/ACM Transactions on Networking (TON)
H-RCA: 802.11 collision-aware rate control
IEEE/ACM Transactions on Networking (TON)
A comparative simulation study of rate adaptation algorithms in wireless LANs
International Journal of Sensor Networks
CLACK: Cross-layer ACK-Aided Opportunistic Transmission in Wireless Networks
Wireless Personal Communications: An International Journal
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Increasingly, 802.11 devices are being used by mobile users. This results in very dynamic wireless channels that are difficult to use efficiently. Current rate selection algorithms are dominated by probe-based approaches that search for the best transmission rate using trial-and-error. In mobile environments, probe-based techniques often perform poorly because they inefficiently search for the moving target presented by the constantly changing channel. We have developed a channel-aware rate adaptation algorithm CHARM - that uses signal strength measurements collected by the wireless cards to help select the transmission rate. Moreover, unlike previous approaches CHARM leverages channel reciprocity to obtain channel information, so the information is available to the transmitter without incurring RTS/CTS overhead. This combination of techniques allows CHARM to respond quickly to dynamic channel changes. We implemented CHARM in the Madwifi driver for wireless cards using the Atheros chipset. Our evaluation both in the real world and on a controlled testbed shows that channel-aware rate selection can significantly outperform probe-based rate adaptation, especially over dynamic channels.