Numerical recipes in C (2nd ed.): the art of scientific computing
Numerical recipes in C (2nd ed.): the art of scientific computing
Analysis of TCP performance over mobile ad hoc networks
Wireless Networks - Selected Papers from Mobicom'99
Impact of interference on multi-hop wireless network performance
Proceedings of the 9th annual international conference on Mobile computing and networking
A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th annual international conference on Mobile computing and networking
Taming the underlying challenges of reliable multihop routing in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Comparison of routing metrics for static multi-hop wireless networks
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
ORBIT Measurements Framework and Library (OML): Motivations, Design, Implementation, and Features
TRIDENTCOM '05 Proceedings of the First International Conference on Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities
Measurement-based models of delivery and interference in static wireless networks
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
The need for cross-layer information in access point selection algorithms
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Proceedings of first ACM/IEEE international workshop on Mobility in the evolving internet architecture
Exploiting the capture effect for collision detection and recovery
EmNets '05 Proceedings of the 2nd IEEE workshop on Embedded Networked Sensors
A general model of wireless interference
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Understanding the limitations of transmit power control for indoor wlans
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Unified Link Layer API: A generic and open API to manage wireless media access
Computer Communications
CSMA interaction detection and capacity estimation in cognitive radio networks
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
Online estimation of RF interference
CoNEXT '08 Proceedings of the 2008 ACM CoNEXT Conference
Contention in multi-hop wireless networks: model and fairness analysis
Proceedings of the 12th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Interaction engineering: taming of the CSMA
Proceedings of the 13th ACM international conference on Modeling, analysis, and simulation of wireless and mobile systems
IEEE Transactions on Multimedia
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Protocols and applications in wireless mesh networks often optimize their performance by measuring the quality of wireless links. However, measuring and characterizing link-quality is a challenging task due to the nature of wireless channel and device-specific properties of radios. The paper proposes two aspects of link-quality measurement and estimation in realistic networks that benefit higher-layer protocols. First, we analyze the statistical properties of link-quality metrics, such as received signal strength and packet error rates, in an indoor IEEE 802.11 mesh network. We show that the statistical distribution and memory properties vary across different links, but are predictable. The next contribution of the paper is a real-time measurement framework that enables higher-level protocols in wireless mesh networks. We discuss the architectural requirements and our implementation experiences of a measurement framework. In addition, we provide three concrete applications that use the measured link-quality and statistical inference to better adapt their behavior.