Abstract:
Understanding spectrum activity is challenging when attempted at scale. The wireless community has recently risen to this challenge in designing spectrum monitoring syste...Show MoreMetadata
Abstract:
Understanding spectrum activity is challenging when attempted at scale. The wireless community has recently risen to this challenge in designing spectrum monitoring systems that utilize many low-cost spectrum sensors to gather large volumes of sampled data across space, time, and frequencies. These crowdsensing systems are limited by the uplink bandwidth available to backhaul the raw in-phase and quadrature (IQ) samples and power spectrum density (PSD) data needed to run various applications. This paper presents FlexSpec, a framework based on the Walsh-Hadamard transform to compress spectrum data collected from distributed and low-cost sensors for real-time applications. This transformation allows sensors to significantly save uplink bandwidth thanks to its inherent properties both when it is applied to IQ and PSD data. Additionally, by leveraging a feedback loop between the sensor and the edge device it connects to, FlexSpec carefully adapts the compression ratio over time to changes in the spectrum and different applications, jointly considering data size, application performance, and spectrum variations. We experimentally evaluate FlexSpec in several applications. Our results show that FlexSpec is particularly suitable for IoT transmissions and signals close to the noise floor. Compared with prior work, FlexSpec provides up to 7\times more reduction of uplink data size for signal detection based on PSD data, and reduces up to 6\times to 8\times the number of undecodable messages for IQ sample decoding.
Published in: IEEE/ACM Transactions on Networking ( Volume: 31, Issue: 5, October 2023)
Funding Agency:
Department of Computer Sciences, University of Wisconsin–Madison, Madison, WI, USA
Yijing Zeng (Student Member, IEEE) received the bachelor’s degree in communication engineering from the Beijing University of Posts and Telecommunications in 2008, the master’s degree in electrical and computer engineering from the University of California at Santa Barbara in 2015, and the Ph.D. degree in computer sciences from the University of Wisconsin–Madison in 2022. His current research interests include building la...Show More
Yijing Zeng (Student Member, IEEE) received the bachelor’s degree in communication engineering from the Beijing University of Posts and Telecommunications in 2008, the master’s degree in electrical and computer engineering from the University of California at Santa Barbara in 2015, and the Ph.D. degree in computer sciences from the University of Wisconsin–Madison in 2022. His current research interests include building la...View more
Department of Signal Theory and Communications and Telematic Systems and Computing, Universidad Rey Juan Carlos, Madrid, Spain
Roberto Calvo-Palomino (Member, IEEE) received the Ph.D. degree in telematics from the University Carlos III of Madrid and the IMDEA Networks Institute, Madrid, Spain, July 2019. He is currently an Associate Professor with Rey Juan Carlos University, Madrid. He also made a post-doctoral research at IMDEA Networks. He worked as a Senior Software Engineer for five years in the industry. His main research interests include t...Show More
Roberto Calvo-Palomino (Member, IEEE) received the Ph.D. degree in telematics from the University Carlos III of Madrid and the IMDEA Networks Institute, Madrid, Spain, July 2019. He is currently an Associate Professor with Rey Juan Carlos University, Madrid. He also made a post-doctoral research at IMDEA Networks. He worked as a Senior Software Engineer for five years in the industry. His main research interests include t...View more
IMDEA Networks Institute, Leganés, Spain
Domenico Giustiniano (Senior Member, IEEE) received the Ph.D. degree in telecommunication engineering from the University of Rome Tor Vergata in 2008. He is currently a Research Associate Professor (tenured) with IMDEA Networks, Madrid, Spain. Before joining IMDEA, he was a Senior Researcher and a Lecturer at ETH Zürich. He also worked for a total of four years as a Post-Doctoral Researcher at Industrial Research Laborato...Show More
Domenico Giustiniano (Senior Member, IEEE) received the Ph.D. degree in telecommunication engineering from the University of Rome Tor Vergata in 2008. He is currently a Research Associate Professor (tenured) with IMDEA Networks, Madrid, Spain. Before joining IMDEA, he was a Senior Researcher and a Lecturer at ETH Zürich. He also worked for a total of four years as a Post-Doctoral Researcher at Industrial Research Laborato...View more
Armasuisse, Bern, Switzerland
Gerome Bovet received the Ph.D. degree in networks and systems from Telecom ParisTech, France, in 2015, and the Executive M.B.A. degree from the University of Fribourg, Switzerland, in 2021. He is currently the Head of data science with Armasuisse, Switzerland, where he leads a research team and a portfolio of about 30 projects. His work focuses on machine and deep learning approaches applied to cyber-defense use cases, w...Show More
Gerome Bovet received the Ph.D. degree in networks and systems from Telecom ParisTech, France, in 2015, and the Executive M.B.A. degree from the University of Fribourg, Switzerland, in 2021. He is currently the Head of data science with Armasuisse, Switzerland, where he leads a research team and a portfolio of about 30 projects. His work focuses on machine and deep learning approaches applied to cyber-defense use cases, w...View more
Department of Computer Sciences, University of Wisconsin–Madison, Madison, WI, USA
Suman Banerjee (Fellow, IEEE) received the bachelor’s degree from IIT Kanpur, and the M.S. and Ph.D. degrees from the University of Maryland. He is currently the David J. DeWitt Professor of computer sciences with the University of Wisconsin–Madison and the Founding Director of the WiNGS Laboratory, which broadly focuses on research in wireless and mobile networking systems. He has published more than 100 technical papers...Show More
Suman Banerjee (Fellow, IEEE) received the bachelor’s degree from IIT Kanpur, and the M.S. and Ph.D. degrees from the University of Maryland. He is currently the David J. DeWitt Professor of computer sciences with the University of Wisconsin–Madison and the Founding Director of the WiNGS Laboratory, which broadly focuses on research in wireless and mobile networking systems. He has published more than 100 technical papers...View more
Contents Department of Computer Sciences, University of Wisconsin–Madison, Madison, WI, USA
Yijing Zeng (Student Member, IEEE) received the bachelor’s degree in communication engineering from the Beijing University of Posts and Telecommunications in 2008, the master’s degree in electrical and computer engineering from the University of California at Santa Barbara in 2015, and the Ph.D. degree in computer sciences from the University of Wisconsin–Madison in 2022. His current research interests include building large-scale spectrum sensing and data analysis platforms.
Yijing Zeng (Student Member, IEEE) received the bachelor’s degree in communication engineering from the Beijing University of Posts and Telecommunications in 2008, the master’s degree in electrical and computer engineering from the University of California at Santa Barbara in 2015, and the Ph.D. degree in computer sciences from the University of Wisconsin–Madison in 2022. His current research interests include building large-scale spectrum sensing and data analysis platforms.View more
Department of Signal Theory and Communications and Telematic Systems and Computing, Universidad Rey Juan Carlos, Madrid, Spain
Roberto Calvo-Palomino (Member, IEEE) received the Ph.D. degree in telematics from the University Carlos III of Madrid and the IMDEA Networks Institute, Madrid, Spain, July 2019. He is currently an Associate Professor with Rey Juan Carlos University, Madrid. He also made a post-doctoral research at IMDEA Networks. He worked as a Senior Software Engineer for five years in the industry. His main research interests include the IoT, data analysis, collaborative-smart systems deployed at large scale, collaborative/distributed algorithms to build smart crowd-sourcing platforms, collaborative wideband spectrum monitoring, anomaly detection, and fully distributed systems on a large scale.
Roberto Calvo-Palomino (Member, IEEE) received the Ph.D. degree in telematics from the University Carlos III of Madrid and the IMDEA Networks Institute, Madrid, Spain, July 2019. He is currently an Associate Professor with Rey Juan Carlos University, Madrid. He also made a post-doctoral research at IMDEA Networks. He worked as a Senior Software Engineer for five years in the industry. His main research interests include the IoT, data analysis, collaborative-smart systems deployed at large scale, collaborative/distributed algorithms to build smart crowd-sourcing platforms, collaborative wideband spectrum monitoring, anomaly detection, and fully distributed systems on a large scale.View more
IMDEA Networks Institute, Leganés, Spain
Domenico Giustiniano (Senior Member, IEEE) received the Ph.D. degree in telecommunication engineering from the University of Rome Tor Vergata in 2008. He is currently a Research Associate Professor (tenured) with IMDEA Networks, Madrid, Spain. Before joining IMDEA, he was a Senior Researcher and a Lecturer at ETH Zürich. He also worked for a total of four years as a Post-Doctoral Researcher at Industrial Research Laboratories (Disney Research, Zürich, and Telefónica, Research Barcelona). He is also the Leader of the OpenVLC Project and the Co-Founder of the non-profit Electrosense Association. He has authored over 100 international papers. His current research interests include the battery-free IoT, large-scale spectrum analytics, and 5G+ localization systems.
Domenico Giustiniano (Senior Member, IEEE) received the Ph.D. degree in telecommunication engineering from the University of Rome Tor Vergata in 2008. He is currently a Research Associate Professor (tenured) with IMDEA Networks, Madrid, Spain. Before joining IMDEA, he was a Senior Researcher and a Lecturer at ETH Zürich. He also worked for a total of four years as a Post-Doctoral Researcher at Industrial Research Laboratories (Disney Research, Zürich, and Telefónica, Research Barcelona). He is also the Leader of the OpenVLC Project and the Co-Founder of the non-profit Electrosense Association. He has authored over 100 international papers. His current research interests include the battery-free IoT, large-scale spectrum analytics, and 5G+ localization systems.View more
Armasuisse, Bern, Switzerland
Gerome Bovet received the Ph.D. degree in networks and systems from Telecom ParisTech, France, in 2015, and the Executive M.B.A. degree from the University of Fribourg, Switzerland, in 2021. He is currently the Head of data science with Armasuisse, Switzerland, where he leads a research team and a portfolio of about 30 projects. His work focuses on machine and deep learning approaches applied to cyber-defense use cases, with an emphasis on anomaly detection, adversarial and collaborative learning.
Gerome Bovet received the Ph.D. degree in networks and systems from Telecom ParisTech, France, in 2015, and the Executive M.B.A. degree from the University of Fribourg, Switzerland, in 2021. He is currently the Head of data science with Armasuisse, Switzerland, where he leads a research team and a portfolio of about 30 projects. His work focuses on machine and deep learning approaches applied to cyber-defense use cases, with an emphasis on anomaly detection, adversarial and collaborative learning.View more
Department of Computer Sciences, University of Wisconsin–Madison, Madison, WI, USA
Suman Banerjee (Fellow, IEEE) received the bachelor’s degree from IIT Kanpur, and the M.S. and Ph.D. degrees from the University of Maryland. He is currently the David J. DeWitt Professor of computer sciences with the University of Wisconsin–Madison and the Founding Director of the WiNGS Laboratory, which broadly focuses on research in wireless and mobile networking systems. He has published more than 100 technical papers in leading conferences and journals. He is a Fellow of the ACM. He was an inaugural recipient of the ACM SIGMOBILE Rockstar Award and a recipient of the U.S. National Science Foundation Career Award. He served as the Chair for ACM SIGMOBILE from 2013 to 2017.
Suman Banerjee (Fellow, IEEE) received the bachelor’s degree from IIT Kanpur, and the M.S. and Ph.D. degrees from the University of Maryland. He is currently the David J. DeWitt Professor of computer sciences with the University of Wisconsin–Madison and the Founding Director of the WiNGS Laboratory, which broadly focuses on research in wireless and mobile networking systems. He has published more than 100 technical papers in leading conferences and journals. He is a Fellow of the ACM. He was an inaugural recipient of the ACM SIGMOBILE Rockstar Award and a recipient of the U.S. National Science Foundation Career Award. He served as the Chair for ACM SIGMOBILE from 2013 to 2017.View more
