Error control schemes for networks: an overview
Mobile Networks and Applications
Methods for packet combining in HARQ systems over bursty channels
Mobile Networks and Applications
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
TWIST: a scalable and reconfigurable testbed for wireless indoor experiments with sensor networks
REALMAN '06 Proceedings of the 2nd international workshop on Multi-hop ad hoc networks: from theory to reality
MoteLab: a wireless sensor network testbed
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
On estimating joint interference for concurrent packet transmissions in low power wireless networks
Proceedings of the third ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
A measurement study of interference modeling and scheduling in low-power wireless networks
Proceedings of the 6th ACM conference on Embedded network sensor systems
White space networking with wi-fi like connectivity
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Quantifying the channel quality for interference-aware wireless sensor networks
ACM SIGBED Review - Special Issue on the 10th International Workshop on Real-time Networks (RTN 2011)
ACM SIGBED Review - Special Issue on the 3rd International Workshop on Networks of Cooperating Objects (CONET 2012)
SoNIC: classifying interference in 802.15.4 sensor networks
Proceedings of the 12th international conference on Information processing in sensor networks
Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
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On a common sensor node platform (Telos) we sample RSSI with high frequency during packet reception. We find that a packet collision (RF interference) often manifests as a measurable, temporal increase in RSSI. We investigate how the receiver can use this information to detect interference and, through temporal correlation, estimate the bit error positions in a corrupted packet. In an experimental study in two testbeds and several realistic BAN scenarios we show that a simple threshold-based algorithm often succeeds in estimating a large fraction of the bit error positions correctly. We develop an ARQ scheme that utilizes the error estimates to reduce the size of retransmitted packets. For this ARQ scheme we present an analytical model and verify it experimentally. Our results indicate that in comparison with a standard Send-and-Wait ARQ the expected number of bits per transmission can be reduced significantly (in our measurements by up to 14.7 %).