Understanding packet delivery performance in dense wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
ASCENT: Adaptive Self-Configuring sEnsor Networks Topologies
IEEE Transactions on Mobile Computing
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Telos: enabling ultra-low power wireless research
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Research on Wireless Sensor Networks Routing Protocol for Wetland Water Environment Monitoring
ICICIC '06 Proceedings of the First International Conference on Innovative Computing, Information and Control - Volume 3
ATPC: adaptive transmission power control for wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Understanding the causes of packet delivery success and failure in dense wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
An empirical study of low-power wireless
ACM Transactions on Sensor Networks (TOSN)
Radio link quality estimation in wireless sensor networks: A survey
ACM Transactions on Sensor Networks (TOSN)
Data-driven link quality prediction using link features
ACM Transactions on Sensor Networks (TOSN)
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We study the problem of link quality (LQ) estimation in wireless sensor networks. Based on an extensive measurement campaign we have investigated in detail the behaviour of usual LQ estimators, such as the Packet Reception Rate (PRR), the received signal strength indicator (RSSI) and the LQI index of the CC2420 radio. All of these turn out to have shortcomings, calling for the design of a new LQ metric. We propose such a metric combining PRR and RSSI in a normalized manner. We show that for a wide variety of link conditions our metric provides stable and accurate link quality estimates. This work has a large number of potential application areas, including more accurate link-aware routing, topology control and different cross-layer optimization schemes.