Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
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
Improving loss resilience with multi-radio diversity in wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
802.11b/g Link Level Measurements for an Outdoor Wireless Campus Network
WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
Long-distance 802.11b links: performance measurements and experience
Proceedings of the 12th annual international conference on Mobile computing and networking
On accurate and asymmetry-aware measurement of link quality in wireless mesh networks
IEEE/ACM Transactions on Networking (TON)
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This paper describes an unexpected finding concerning link quality measurements carried out through broadcast frames. We found out that, with experimental equipments/drivers widely used by the scientific community (Atheros WLAN cards with MADWiFi driver), broadcast-based link quality measurements seem to be affected by a NIC-proprietary power saving mode. The striking conclusion is that some packet losses, typically attributed to bad channel characteristics, rather may depend on the broadcast measurement methodology. Unicast measurements are shown to be exempt from such a problem. A very simple test is furthermore proposed to verify whether measurement results are affected by the described phenomenon.