Efficient memoryless protocol for tag identification (extended abstract)
DIALM '00 Proceedings of the 4th international workshop on Discrete algorithms and methods for mobile computing and communications
Efficient Object Identification with Passive RFID Tags
Pervasive '02 Proceedings of the First International Conference on Pervasive Computing
Understanding packet delivery performance in dense wireless 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
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
The SkyLoc Floor Localization System
PERCOM '07 Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications
Advancing wireless link signatures for location distinction
Proceedings of the 14th ACM international conference on Mobile computing and networking
An empirical study of UHF RFID performance
Proceedings of the 14th ACM international conference on Mobile computing and networking
The β-factor: measuring wireless link burstiness
Proceedings of the 6th ACM conference on Embedded network sensor systems
Cross-layer wireless bit rate adaptation
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Frequency-aware rate adaptation and MAC protocols
Proceedings of the 15th annual international conference on Mobile computing and networking
Energy-Aware Tag Anticollision Protocols for RFID Systems
IEEE Transactions on Mobile Computing
On the limits of effective hybrid micro-energy harvesting on mobile CRFID sensors
Proceedings of the 8th international conference on Mobile systems, applications, and services
A "Gen 2" RFID monitor based on the USRP
ACM SIGCOMM Computer Communication Review
Predictable 802.11 packet delivery from wireless channel measurements
Proceedings of the ACM SIGCOMM 2010 conference
AccuRate: constellation based rate estimation in wireless networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Physical-layer identification of UHF RFID tags
Proceedings of the sixteenth annual international conference on Mobile computing and networking
RFID reader receivers for physical layer collision recovery
IEEE Transactions on Communications
Dewdrop: an energy-aware runtime for computational RFID
Proceedings of the 8th USENIX conference on Networked systems design and implementation
Improving wireless network performance using sensor hints
Proceedings of the 8th USENIX conference on Networked systems design and implementation
Flit: a bulk transmission protocol for RFID-scale sensors
Proceedings of the 10th international conference on Mobile systems, applications, and services
Flit: a bulk transmission protocol for RFID-scale sensors
Proceedings of the 10th international conference on Mobile systems, applications, and services
Understanding energy consumption of UHF RFID readers for mobile phone sensing applications
Proceedings of the seventh ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Enabling bit-by-bit backscatter communication in severe energy harvesting environments
NSDI'14 Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation
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Backscatter communication offers an ultra-low power alternative to active radios in urban sensing deployments - communication is powered by a reader, thereby making it virtually "free". While backscatter communication has largely been used for extremely small amounts of data transfer (e.g. a 12 byte EPC identifier from an RFID tag), sensors need to use backscatter for continuous and high-volume sensor data transfer. To address this need, we describe a novel link layer that exploits unique characteristics of backscatter communication to optimize throughput. Our system offers several optimizations including 1) understanding of multi-path self-interference characteristics and link metrics that capture these characteristics, 2) design of novel mobility-aware probing techniques that use backscatter link signatures to determine when to probe the channel, 3) bitrate selection algorithms that use link metrics to determine the optimal bitrate, and 4) channel selection mechanism that optimize throughput while remaining compliant within FCC regulations. Our results show upto 3x increase in goodput over other mechanisms across a wide range of channel conditions, scales, and mobility scenarios.