NSF SpecEES PI Meeting in Newport Beach, CA
Arjuna Madanayake attended the PI meeting for the NSF SpecEES Program in Newport Beach, CA. A 2-minute lightning talk and a poster was published.
New Beamforming Theory Paper in IEEE ACCESS
New paper accepted at IEEE ACCESS titled "Radix-2 Self-Recursive Sparse Factorizations of Delay Vandermonde Matrices for Wideband Multi-Beam Antenna Arrays", co-authored by Sirani Perera (Embry-Riddle Aeronautical University), Arjuna Madanayake (FIU) and Renato Cintra (UFPE, Brazil) has been accepted for publication. This work is partially supported by an NSF ECCS Award.
RAND-Lab is Proud to Announce the Following 6 Papers to Appear at IEEE ISCAS'2020
The following papers have been accepted for future publication at IEEE International Symposium on Circuits and Systems (ISCAS) 2020 to be held in Seville, Spain, in May 2020.
"Low-Complexity Real-Time Light Field Compression Using 4-D Approximate DCT", Chamira Edussooriya, Arjuna Madanayake, Namalka Liyanage, Renato Cintra, Eliathamby Ambikairaja, and Chamith Wijenayake.
"Spatio-Temporal Delta-Sigma N^2-Port ADC Noise Shaping for N-by-N Antenna Arrays", Hasantha Malavipathirana, Arjuna Madanayake, Chamira Edussooriya, Leonid Belostotski, Jifu Liang, Nilan Udayanga, and Soumyajit Mandal.
“Continuous-Time Algorithms for Solving Maxwell’s Equations Using Analog Circuits” as a TCAS-I special session paper, Nilan Udayanga, Jifu Liang, SI Hariharan, Leo Belostotski, Len Bruton, Soumyajit Mandal, and Arjuna Madanayake.
“Minimax Design of 2-D Complex-Coefficient FIR Filters with Low Group Delay Using Semidefinite Programming”, Ashira Jayaweera, Chamith Wijenayake, Chamira Edussooriya, Sakila Jayaweera, and Arjuna Madanayake.
“An RF-Rate Hybrid CNN Based on a Row-Parallel 45nm Analog-CMOS Inference Accelerator and Xilinx RFSoC”, Udara De Silva, Arjuna Madanayake, Soumyajit Mandal, Leonid Belostotski, and Jin Wei-Kocsis.
“A Switched-Capacitor-Based Analog Computer for Solving the 1-D Wave Equation”, Jifu Liang, Nilan Udayanga, Arjuna Madanayake, S.I. Hariharan, Soumyajit Mandal
New Paper in 2019 International Workshop on Antenna Technology (iWAT)
The paper titled “Design of a 28 GHz 64-QAM Digital Receiver” has been published at IEEE iWAT. The authors are Sravan Pulipati, Viduneth Ariyarathna, Udara De Silva, Najath Akram, Elias Alwan, and Arjuna Madanayake.
New Journal Article on Extra-Low Frequency Antennas in IEEE ACCESS
The following paper has been published in IEEE ACCESS.
Power-efficient ELF Wireless Communications using Electro-Mechanical Transmitters. The authors are Jarred Glickstein, Jifu Liang, Seungdeog Choi, Arjuna Madanayake and Soumyajit Mandal.
Two Papers in 2019 IEEE Cognitive Communications for Aerospace Applications Workshop (CCAAW)
The following papers have been published at 2019 IEEE Cognitive Communications for Aerospace Applications Workshop (CCAAW).
AI-Driven Self-Optimizing Receivers for Cognitive Radio Networks, Yingying Wang, Xinyao Tang, Gihan J. Mendis, Jin Wei-Kocsis, Arjuna Madanayake and Soumyajit Mandal.
Spectral Attention-Driven Intelligent Target Signal Identification on a Wideband Spectrum, Gihan J. Mendis, Jin Wei Kocsis, Arjuna Madanayake and Soumyajit Mandal.
Paper Published in ACES'2019
The paper tiled “FPGA-based FDTD Accelerators for 2DEG Plasma-Wave Device Modeling at THz” has been published at International Applied Computational Electromagnetics Society Symposium (ACES). The authors are Hasantha Malavipathirana, Arjuna Madanayake, John L. Volakis, Shubhendu Bhardwaj, and Fernando L. Teixeira.
New Workshop Paper at IEEE DySPAN 2019
The workshop paper titled “Software-dened Radios to Accelerate mmWave Wireless Innovation” is accepted at IEEE 2019 DySPAN to be held in New Jersey. The authors are Kai Zheng (NYU, Pi Radio), Aditya Dhananjay (Pi Radio), Marco Mezzavilla (Pi Radio), Arjuna Madanayake (FIU), Shubhendu Bharadwaj (FIU), Viduneth Ariyarathna (FIU), Abhimanyu Gosain (Northeastern), Tommaso Melodia (Northeastern), Michele Polese (Northeastern), Francesco Restuccia (Northeastern), Josep Jornet, (Northeastern) Jim Buckwalter (UCSB), Mark Rodwell (UCSB), Soumyajit Mandal (CWRU), Xin Wang (Stony Brook), Jaakko Haarla (Aalto University) and Vasilii Semkin (VTT Research Center).
New Paper in Signal Processing
The paper titled “Multi-Depth Filtering and Occlusion Suppression in 4-D Light Fields: Algorithms and Architectures” is accepted in Elsevier Signal Processing. The authors are Namalka Liyanage, Chamith Wijenayake, Chamira Edussooriya, Arjuna Madanayake, Pan Agathoklis, Len T. Bruton, and Eliathamby Ambikairajah.
New Paper in IEEE Trans. on Mobile Computing
The paper titled “Compressed Beam Alignment with Out-of-Band Assistance in Millimeter Wave Cellular Networks“ has been accepted for publication at IEEE Trans. on Mobile Computing. The authors are Jie Zhao, Xin Wang, Harish Viswanathan and Arjuna Madanayake.
Reach for Tomorrow (RFT)'2019 at University of Moratuwa, Sri Lanka
Dr. Arjuna Madanayake (FIU) and Dr. Chamira Edussooriya (University of Moratuwa) co-organized the first signal processing and circuits workshop “Reach for Tomorrow” at University of Moratuwa, Sri Lanka, this summer. The flyer is available here.
New Paper at IEEE COMCAS
The paper titled “A Direct-Conversion Digital Beamforming Array Receiver with 800 MHz Bandwidth/Channel at 28 GHz using Xilinx RF SoC” has been accepted at IEEE COMCAS’2019. The authors are Najath Akram, Sravan Pulipati, Viduneth Ariyarathna, Udara De Silva, Elias Alwan, Arjuna Madanayake, Soumyajit Mandal and Ted Rappaport.
New Paper at IEEE Trans. on Antennas and Propagation (TAP)
The paper titled “Towards a Low-SWaP 1024-Beam Digital Array: A 32-Beam Sub-System at 5.8 GHz” has been accepted at IEEE Trans. on Antennas and Propagation (TAP). Authors are Viduneth Ariyarathna, Sravan Pulipati, Suresh Madhishetty, Diego Coelho, Fabio Bayer, Renato Cintra, Soumyajit Mandal, Leonid Belostotski, Ted Rappaport and Arjuna Madanayake.
New NSF Award for Exploring Mechanical Antennas (AMEBA)
The NSF project titled "Collaborative Research: Distributed Electro-Mechanical Transmitters for Adaptive and Power-Efficient Wireless Communications in RF-Denied Environments," in collaboration with Mississippi State University and Case Western Reserve University (CWRU) has been funded. The project is led by Dr. Arjuna Madanayake, at FIU. The lead PI is Dr. Soumyajit Mandal at CWRU. Dr. Seok Choi is the PI at Mississippi State University.
Two Lecture Presentations Coming Up at CASPER 2019
Two abstracts have been accepted for lecture presentation at the 2019 CASPER Workshop to be held at the Harvard Center for Astronomy (CFA). The titles are
“Multibeam Digital Beamforming on 4-Element Array at 28 GHz using Xilinx RFSoC ZCU1275”. Authors: Arjuna Madanayake, Ted Rappaport, Elias Alwan, Soumyajit Mandal, Sravan Pulipati, Viduneth Ariyarathna, Udara De Silva, and Najath Akram.
“An Analog-digital Hybrid Wave Equation Solver using a 180 nm Analog CMOS Chip and ROACH-2 Digital FPGA”. Authors: Nilan Udayanga, Arjuna Madanayake, S.I. Hariharan, Soumyajit Mandal, Jifu Liang, and Leonid Belostotski.
These are non-archival presentations.
New Paper in IEEE Access
The invited paper titled “Wireless Communications and Applications Above 100 GHz: Opportunities and Challenges for 6G and Beyond” has been accepted at IEEE Access. Congratulations to authors Ted S. Rappaport, Yunchou Xing, Ojas Kanhere, Shihao Ju, Arjuna Madanayake, Soumyajit Mandal, Ahmed Alkhateeb, and Georgios C. Trichopoulos!
New Paper in IEEE MERCON'2019
The paper titled “Real-Time FPGA-Based Multi-Beam Directional Sensing of 2.4 GHz ISM RF Sources” has been accepted as a lecture presentation at IEEE 2019 Moratuwa Enginering Research Conference (MERCON) which is to be held in Sri Lanka in July. Authors are Sravan Pulipati, Viduneth Ariyarathna, Chamira Edussooriya, Chamith Wijenayake, Xin Wang and Arjuna Madanayake.
This paper has been awarded a Best Paper Award at MERCON’2019.
New Paper in IEEE Trans. on Circuits and Systems-I: Regular Papers
The paper titled “Continuous-Time Algorithms for Solving Maxwell's Equations using Analog Circuits” has been accepted for publication at IEEE Trans. on Circuits and Systems-I: Regular Papers. The co-authors are Nilan Udayanga, SI Hariharan, Leo Belostotski, Soumyajit Mandal, Len Bruton and Arjuna Madanayake. This paper covers the fundamental theory side of our ongoing DARPA DSO Project with Ocius Technologies LLC.
Brooklyn 5G Summit 2019
Dr. Arjuna Madanayake attended the 2019 Brooklyn 5G Summit, held at New York University (NYU) - Tandon School of Engineering, at the invitation of Professor Ted Rappaport.
Invited Talk at University of Buffalo, NY
Dr. Arjuna Madanayake delivered an invited seminar at the University of Buffalo, NY, at the invitation of Dr. Josep Jornet. The title of the talk and abstract is given below.
Recent Progress in RF Multi-Dimensional Digital Signal Processing (MDSP
We provide a bird’s eye view of two on-going NSF Projects related to wireless communications at the FIU RAND Lab. We begin by providing a review of multi-dimensional spectral properties of propagating space-time planar waves, which are the far-field solutions to the wave equation, using Fourier and Laplace and Z-transform analysis in multi-dimensions. These mathematical properties are reviewed in such a way that it naturally leads to insightful explanations of key digital beamforming concepts/systems, such as, phased-arrays, timed-arrays, filter-sum-arrays, analog-digital-hybrid arrays, sub-arrays, side-lobes and grating lobes, for example. The talk then focuses on digital beamforming, and discusses multi-dimensional spatio-temporal circuit theory that has emerging applications in wideband fully-digital array processing.
Multi-beam beamforming is introduced and explained using properties of the spatio-temporal multi-dimensional spectrum of plane-waves, at RF, intermediate frequency (IF) and baseband, with a brief overview of some algorithms for achieving multiple simultaneous beams. The many challenges associated with wideband beamforming, such as beam squint and computational complexity, are discussed, followed by an introduction to approximate computing for digital beamforming, which leads to proposed solutions for low-squint ultra-low complexity digital array processing systems having practically acceptable RF performance suitable for low-SWaP applications.
The talk will embed engineering examples and details of real-world, fully-operational, experimental verifications, including an overview of high-speed RF digital signal processing platforms used in the RAND Lab, such as the ROACH-2 FPGA system, and the state-of-art Xilinx Zynq RF System on Chip (RF-SoC ZCU1275). The talk ends with an update on our 28 GHz fully-digital beamforming array that uses the Xilinx RF SoC as a RF DSP back-end.