A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Opportunistic media access for multirate ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Divert: fine-grained path selection for wireless LANs
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Exploiting medium access diversity in rate adaptive wireless LANs
Proceedings of the 10th annual international conference on Mobile computing and networking
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
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Rate Adaptation (RA) is a mechanism to choose transmission rate based on the dynamic channel quality in wireless networks. The adaptation algorithm run solely at the sender side in 802.11 networks is studied. The key insight is the inference discrepancy in inferring the relative order of the expected performance of candidate rate, which argues that one can not always reach the correct order based on the channel state information collected exclusively by the sender itself. The consequence is wrong rate decision and significant performance loss. Therefore, a new RA structure is proposed to mitigate such effect by a novel component, rate testing. By embracing the active measurement, a lightweight and effective testing mechanism SFB, short frame burst, is proposed to detect and filter out the unsuitable transmission rate. Finally, an active measurement-based rate adaptation mechanism (AMRA) is designed and implemented. The experiments show that AMRA outperforms many other well-known RA solutions in most scenarios.