Education
- Ph.D, Electrical Engineering, USC (CA, USA), August 2015.
- M.S., Computer Engineering, UNL (NE, USA), 2010.
- B.S., Computer Science (Magna Cum Laude), UFC (CE, Brazil), 2008.
Biography
Agnelo Rocha da Silva was born in São Paulo, SP (Brazil). B.S. degree in Computer Science from the Universidade Federal do Ceará, CE (Brazil), in 2008 (research: Mathematical logic). M.S. degree in Computer Engineering from the University of Nebraska, Lincoln, NE (USA) in 2010 (research: Wireless Underground Communication). Ph.D degree in Electrical Engineering from the University of Southern California, Los Angeles, in August 2015 (research: Wireless Undeground Sensor Networks and sub-MHz soil dielectric spectroscopy, advisor: Prof. Mahta Moghaddam).
His research is related to both sensing and wireless communication in lossy material (in particular, soil) at the sub-MHz range where both phenomena are tightly related. He has developed a novel sub-MHz soil dielectric model which is used to estimate the signal attenuation of buried devices that communicate based on Magnetic-Induction (MI). He is also working on the design of the first in-situ sub-MHz soil impedance spectrometer, a technology which has been traditionally impacted by the electrode polarization (EP) effects that typically occur at low frequencies and lossy material. To this end, he developed a novel methodology to identify the EP contribution in dielectric measurements with 2-electrode systems – an open 125-year old problem. These findings have good potential to be applied to the following applications: precise irrigation, communication under-the-debris for disaster scenarios, oil/gas pipeline leak detection systems, infrastructure monitoring (buildings, bridges, tunnels), and even remote medicine (low-cost diagnostics). He plans to extend these soil/lossy-material studies to the 1-100MHz band.
Publications
2023
Conference
- A Melebari, AR Silva, R Akbar, E Hodges, Y Zhao, P Nergis, DS McKague, C Ruf, M Moghaddam, “CYGNSS SoilSCAPE sites: Sensor calibration and data analysis,” IGARSS 2023-2023 IEEE International Geoscience and Remote Sensing Symposium …, 2023 [link]
Journal
- A Melebari, R Akbar, E Hodges, D Mckague, C Ruf, A Silva, M Moghaddam, R Shrestha, C Lindsley, T Walker, B Wilson, “EOS Land Validation,” ORNL Distributed Active Archive Center (DAAC) dataset 10.3334/ORNLDAAC/2049 …, 2023 [link]
2022
Conference
- R Akbar, S Prager, A Silva, K Bakian-Dogaheh, A Kannan, E Hodges, A Melebari, D Entekhabi, M Moghaddam, “Field Demonstrations of Spctor: Sensing Policy Controller and Optimizer,” IGARSS 2022-2022 IEEE International Geoscience and Remote Sensing Symposium …, 2022 [link]
2021
Journal
- R Akbar, S Prager, AR Silva, M Moghaddam, D Entekhabi, “Wireless sensor network informed UAV path planning for soil moisture mapping,” IEEE Transactions on Geoscience and Remote Sensing 60, 1-13, 2021 [link]
- R Akbar, A Silva, S Prager, KB Dogaheh, A Kannan, A Melebari, E Hodges, D Entekhabi, M Moghaddam, “Integration of in situ Wireless Sensor Networks and UAVs for Soil Moisture Mapping,” AGU Fall Meeting Abstracts 2021, IN11A-06, 2021 [link]
2020
Conference
- R Akbar, J Campbell, AR Silva, R Chen, A Melebari, E Hodges, D Entekhabi, C Ruf, M Moghaddam, “Soilscape Wireless in Situ Networks in Support of Cyngss Land Applications,” IGARSS 2020-2020 IEEE International Geoscience and Remote Sensing Symposium …, 2020 [link]
- M Moghaddam, R Akbar, S Prager, A Silva, D Entekhabi, “SPCTOR: Sensing Policy Controller and Optimizer,” IGARSS 2020-2020 IEEE International Geoscience and Remote Sensing Symposium …, 2020 [link]
Journal
- M Moghaddam, R Akbar, A Silva, S Prager, D Entekhabi, “Multi-Agent Multi-Scale Observations of Soil Moisture via Spctor: Sensing Policy Controller and Optimizer,” AGU Fall Meeting Abstracts 2020, IN041-14, 2020 [link]
2019
Conference
- AR Silva, R Akbar, R Chen, KB Dogaheh, N Golestani, M Moghaddam, D Entekhabi, “Duty-cycled, sub-GHz wake-up radio with-95dBm sensitivity and addressing capability for environmental monitoring applications,” 2019 IEEE 10th Annual Ubiquitous Computing, Electronics & Mobile …, 2019 [link]
- R Akbar, AR Silva, N Golestani, R Chen, J Jadva, K Ikhofua, D Koutentakis, M Moghaddam, D Entekhabi, “Autonomous Moisture Continuum Sensing Network: Intelligent and Energy Efficient in Situ Wireless Sensor Networks in Support of Remote Sensing Missions,” IGARSS 2019-2019 IEEE International Geoscience and Remote Sensing Symposium …, 2019 [link]
Other Publications
- R Akbar, A Silva, RH Chen, N Golestani, KB Dogaheh, A Kannan, D Kahn, M Moghaddam, D Entekhabi, “Recent Progress and Development in Energy Efficient and Smart in situ Wireless Sensor Networks: SoilSCAPE,” AGU Fall Meeting Abstracts 2019, IN23C-20, 2019 [link]
2018
Journal
- KB Dogaheh, R Chen, A Silva, Y Yi, A Tabatabaeenejad, M Moghaddam, “Low frequency behavior of organic soil for a multi-phase study of a permafrost soil dielectric model,” AGU Fall Meeting Abstracts 2018, B31F-2530, 2018 [link]
- KB Dogaheh, RH Chen, A Silva, Y Yi, A Tabatabaeenejad, M Moghaddam, “Low frequency behavior of organic soil for a multi-phase study of a permafrost soil dielectric model,” AGU Fall Meeting 2018, 2018 [link]
2017
Conference
- M Moghaddam, A Tabatabaeenejad, R Chen, R Akbar, A Silva, “Role of computational EM in radar remote sensing of water resources,” 2017 IEEE International Conference on Computational Electromagnetics (ICCEM …, 2017 [link]
Journal
- D Clewley, JB Whitcomb, R Akbar, AR Silva, A Berg, JR Adams, T Caldwell, D Entekhabi, M Moghaddam, “A method for upscaling in situ soil moisture measurements to satellite footprint scale using random forests,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2017 [link]
- A Tabatabaeenejad, RH Chen, A Silva, KM Schaefer, M Moghaddam, “Characterizing vertical heterogeneity of permafrost soils in support of ABoVE radar retrievals,” AGU Fall Meeting Abstracts 2017, B23B-2064, 2017 [link]
2016
Conference
- J Whitcomb, D Clewley, R Akbar, A Silva, A Berg, J Adams, M Moghaddam, “Method for upscaling in-situ soil moisture measurements for calibration and validation of smap soil moisture products,” 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS …, 2016 [link]
Journal
- M Moghaddam, A Silva, D Clewley, R Akbar, S Hussaini, J Whitcomb, R Devarakonda, R Shrestha, R Cook, G Prakash, SS Vannan, A Boyer, “Soil moisture profiles and temperature data from SoilSCAPE sites, USA,” ORNL Distributed Active Archive Center (DAAC) dataset 10.3334/ORNLDAAC/1339 …, 2016 [link]
- J Whitcomb, D Clewley, R Akbar, A Silva, AA Berg, J Adams, TG Caldwell, M Moghaddam, D Entekhabi, “Verification of Regression-Based Upscaling Technique for Calibration/Validation of Space-Based Soil Moisture Products with Sparse In-Situ Data,” 2016 AGU Fall Meeting, 2016 [link]
- M Moghaddam, J Whitcomb, D Clewley, R Akbar, A Silva, A Berg, J Adams, T Caldwell, D Entekhabi, “Verification of Regression-Based Upscaling Technique for Calibration/Validation of Space-Based Soil Moisture Products with Sparse In-Situ Data,” AGU Fall Meeting Abstracts 2016, H31G-1473, 2016 [link]
Other Publications
- M Moghaddam, A Silva, D Clewley, R Akbar, S Hussaini, J Whitcomb, R Devarakonda, R Shrestha, R Cook, G Prakash, SS Vannan, A Boyer, “Soil Moisture Profiles and Temperature Data from SoilSCAPE Sites, USA, ORNL DAAC, Oak Ridge, Tennessee, USA,” 2016 [link]
2015
Conference
- AR Silva, M Moghaddam, “Operating frequency selection for low-power magnetic induction-based wireless underground sensor networks,” 2015 IEEE Sensors Applications Symposium (SAS), 1-6, 2015 [link]
- AR Silva, M Moghaddam, “Strategic frequency adaptation for mid-range magnetic induction-based wireless underground sensor networks,” 2015 Annual IEEE Systems Conference (SysCon) Proceedings, 758-765, 2015 [link]
- A Silva, M Moghaddam, “Adaptive sub-MHz magnetic induction-based system for mid-range wireless communication in soil,” 2015 IEEE-APS Topical Conference on Antennas and Propagation in Wireless …, 2015 [link]
- AR Silva, M Moghaddam, M Liu, “Case study on the reliability of unattended outdoor wireless sensor systems,” 2015 Annual IEEE Systems Conference (SysCon) Proceedings, 785-791, 2015 [link]
Journal
- AR Silva, M Moghaddam, “Design and implementation of low-power and mid-range magnetic-induction-based wireless underground sensor networks,” IEEE Transactions on Instrumentation and Measurement 65 (4), 821-835, 2015 [link]
- AR Silva, M Moghaddam, R Akbar, D Clewley, “Advanced Soil Moisture Network Technologies; Developments in Collecting in situ Measurements for Remote Sensing Missions,” 2015 AGU Fall Meeting, 2015 [link]
- J Whitcomb, D Clewley, M Moghaddam, R Akbar, A Silva, “Upscaling sparse, irregularly spaced in situ soil moisture measurements for calibration and validation of SMAP soil moisture products,” AGU Fall Meeting Abstracts 2015, B53A-0538, 2015 [link]
- M Moghaddam, A Silva, R Akbar, D Clewley, “Advanced Soil Moisture Network Technologies; Developments in Collecting in situ Measurements for Remote Sensing Missions,” AGU Fall Meeting Abstracts 2015, IN31D-06, 2015 [link]
2014
Journal
- M Moghaddam, A Silva, M Liu, “Emerging Technologies, Sensor Web,” Encyclopedia of Remote Sensing, 190-196, 2014 [link]
- M Moghaddam, D Clewley, AR Silva, R Akbar, “The SoilSCAPE network multiscale in-situ soil moisture measurements: Innovations in network design and approaches to upscaling in support of SMAP,” 2014 AGU Fall Meeting, 2014 [link]
2013
Conference
- AR Silva, M Liu, M Moghaddam, “WSN-SA: Design foundations for situational awareness systems based on sensor networks,” 2013 IEEE Global Humanitarian Technology Conference (GHTC), 179-184, 2013 [link]
Journal
- AR Silva, M Liu, M Moghaddam, “Ripple-2: a non-collaborative, asynchronous, and open architecture for highly-scalable and low duty-cycle WSNs,” ACM SIGMOBILE Mobile Computing and Communications Review 17 (1), 55-60, 2013 [link]
- AR Silva, M Liu, M Moghaddam, “An adaptive energy-management framework for sensor nodes with constrained energy scavenging profiles,” International Journal of Distributed Sensor Networks 9 (10), 272849, 2013 [link]
- M Moghaddam, A Silva, D Clewley, R Akbar, D Entekhabi, “SoilSCAPE in-Situ Observations of Soil Moisture for SMAP Validation: Pushing the Envelopes of Spatial Coverage and Energy Efficiency in Sparse Wireless Sensor Networks,” AGU Fall Meeting Abstracts 2013, IN23E-08, 2013 [link]
- R Devarakonda, K Lu, G Palanisamy, R Cook, SS Vannan, MC Moghaddam, A Silva, R Akbar, “Unified Science Information Model for SoilSCAPE using the Mercury Metadata Search System,” AGU Fall Meeting Abstracts 2013, IN31C-1510, 2013 [link]
Other Publications
- ARD Silva, M Moghaddam, M Liu, “The future of wireless underground sensing networks considering physical layer aspects,” The Art of Wireless Sensor Networks: Volume 2: Advanced Topics and …, 2013 [link]
- AR Silva, M Moghaddam, M Liu, “Design of Low Data-Rate Environmental Monitoring Applications,” The Art of Wireless Sensor Networks: Volume 1: Fundamentals, 51-94, 2013 [link]
2012
Journal
- A Silva, M Liu, M Moghaddam, “Power‐Management Techniques for Wireless Sensor Networks and Similar Low‐Power Communication Devices Based on Nonrechargeable Batteries,” Journal of Computer Networks and Communications 2012 (1), 757291, 2012 [link]
Other Publications
- A Silva, M Liu, M Moghaddam, “Research Article Power-Management Techniques for Wireless Sensor Networks and Similar Low-Power Communication Devices Based on Nonrechargeable Batteries,” 2012 [link]
2011
Journal
- M Moghaddam, A Silva, D Entekhabi, A Castillo, M Liu, M Burgin, Y Goykhman, “A Robust Wireless Sensor Network Architecture for the Large-scale Deployment of the Soil Moisture Sensing Controller and Optimal Estimator (SoilSCaPE),” AGU Fall Meeting Abstracts 2011, IN43B-1449, 2011 [link]
2010
Journal
- M Moghaddam, M Burgin, A Castillo, D Entekhabi, Y Goykhman, A Kakhbod, K Li, M Liu, A Nayyar, A Silva, D Teneketzis, Q Wang, X Wu, “Soil moisture sensing controller and optimal estimator (SoilSCAPE): First deployment of the wireless sensor network and latest progress on soil moisture satellite retrieval validation strategies,” Earth Science Technology Forum, 1-9, 2010 [link]
