MACAW: a media access protocol for wireless LAN's
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Floor acquisition multiple access (FAMA) for packet-radio networks
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
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
Effect of Hidden Terminals on the Performance of IEEE 802.11 MAC Protocol
LCN '98 Proceedings of the 23rd Annual IEEE Conference on Local Computer Networks
The Impact of RTS Threshold on IEEE 802.11 MAC Protocol
ICPADS '02 Proceedings of the 9th International Conference on Parallel and Distributed Systems
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
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
IQU: practical queue-based user association management for WLANs
Proceedings of the 12th annual international conference on Mobile computing and networking
An analysis of unreliability and asymmetry in low-power wireless links
ACM Transactions on Sensor Networks (TOSN)
On exploiting asymmetric wireless links via one-way estimation
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 14th ACM international conference on Mobile computing and networking
EUC '08 Proceedings of the 2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing - Volume 01
Cross-layer wireless bit rate adaptation
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Predictable 802.11 packet delivery from wireless channel measurements
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
MIMO rate adaptation in 802.11n wireless networks
Proceedings of the sixteenth annual international conference on Mobile computing and networking
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Dynamic ARF for throughput improvement in 802.11 WLAN via a machine-learning approach
Journal of Network and Computer Applications
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Rate adaptation is a common technique to exploit channel diversity in wireless networks. Despite the many rate adaptation algorithms proposed for 802.11 networks, statistics-based schemes remain the most widely adopted approaches in commercial 802.11 products due to their simplicity and practicality. However, statistics-based schemes suffer some disadvantages. Our previous research effort revealed the rate avalanche effect that could significantly degrade the network performance of heavily loaded 802.11 networks. In this work, we propose RADAR (Rate-Alert DynAmic Rts/cts exchange), a novel enhanced rate adaptation system that can effectively alleviate the impact of the rate avalanche effect. RADAR detects rate avalanche through maintaining a dynamic range-based mapping between rates and RSSI (received signal strength indicator) measurements. It judiciously exploits dynamic RTS/CTS exchanges to effectively suppress the rate avalanche effect while at the same time minimizes the transmission overhead of RTS/CTS exchanges. Being fully compatible with current 802.11 standards, RADAR can be readily implemented in the NIC driver. Through extensive simulations using realistic channel propagation and reception models, we demonstrate that RADAR is a practical and efficient performance enhancement approach for multi-rate 802.11 networks.