179 citations · 811 across the 77 of their papers we have counts for
29 papers · 1 filter
Octonion Phase Retrieval
Roman Jacome, Kumar Vijay Mishra, Brian M. Sadler +1
Signal processing over hypercomplex numbers arises in many optical imaging applications. In particular, spectral image or color stereo data are often processed using octonion algeb…
Multi-Antenna Dual-Blind Deconvolution for Joint Radar-Communications via SoMAN Minimization
Roman Jacome, Edwin Vargas, Kumar Vijay Mishra +2
In joint radar-communications (JRC) applications such as secure military receivers, often the radar and communications signals are overlaid in the received signal. In these passive…
Quantized Phase-Shift Design of Active IRS for Integrated Sensing and Communications
Zahra Esmaeilbeig, Arian Eamaz, Kumar Vijay Mishra +1
Integrated sensing and communications (ISAC) is a spectrum-sharing paradigm that allows different users to jointly utilize and access the crowded electromagnetic spectrum. In this…
Beurling-Selberg Extremization for Dual-Blind Deconvolution Recovery in Joint Radar-Communications
Jonathan Monsalve, Edwin Vargas, Kumar Vijay Mishra +2
Recent interest in integrated sensing and communications has led to the design of novel signal processing techniques to recover information from an overlaid radar-communications si…
Joint Waveform and Passive Beamformer Design in Multi-IRS-Aided Radar
Zahra Esmaeilbeig, Arian Eamaz, Kumar Vijay Mishra +1
Intelligent reflecting surface (IRS) technology has recently attracted a significant interest in non-light-of-sight radar remote sensing. Prior works have largely focused on design…
Dual-Blind Deconvolution for Overlaid Radar-Communications Systems
Edwin Vargas, Kumar Vijay Mishra, Roman Jacome +2
The increasingly crowded spectrum has spurred the design of joint radar-communications systems that share hardware resources and efficiently use the radio frequency spectrum. We st…
Group-Theoretic Wideband Radar Waveform Design
Kumar Vijay Mishra, Samuel Pinilla, Ali Pezeshki +1
We investigate the theory of affine groups in the context of designing radar waveforms that obey the desired wideband ambiguity function (WAF). The WAF is obtained by correlating t…
Multi-IRS-Aided Doppler-Tolerant Wideband DFRC System
Tong Wei, Linlong Wu, Kumar Vijay Mishra +1
Intelligent reflecting surface (IRS) is recognized as an enabler of future dual-function radar-communications (DFRC) by improving spectral efficiency, coverage, parameter estimatio…
Multi-dimensional dual-blind deconvolution approach toward joint radar-communications
Roman Jacome, Kumar Vijay Mishra, Edwin Vargas +2
We consider a joint multiple-antenna radar-communications system in a co-existence scenario. Contrary to conventional applications, wherein at least the radar waveform and communic…
Constant Curvature Curve Tube Codes for Low-Latency Analog Error Correction
Anders M. Buvarp, Robert M. Taylor, Kumar Vijay Mishra +2
Recent research in ultra-reliable and low latency communications (URLLC) for future wireless systems has spurred interest in short block-length codes. In this context, we analyze a…
OptM3Sec: Optimizing Multicast IRS-Aided Multiantenna DFRC Secrecy Channel with Multiple Eavesdroppers
Kumar Vijay Mishra, Arpan Chattopadhyay, Siddharth Sankar Acharjee +1
With the use of common signaling methods for dual-function radar-communications (DFRC) systems, the susceptibility of eavesdropping on messages aimed at legitimate users has worsen…
Non-Convex Recovery from Phaseless Low-Resolution Blind Deconvolution Measurements using Noisy Masked Patterns
Samuel Pinilla, Kumar Vijay Mishra, Brian M. Sadler
This paper addresses recovery of a kernel and a signal from the low-resolution phaseless measurements of their…
Rate-Splitting Meets Cell-Free MIMO Communications
André Flores, Rodrigo C. de Lamare, Kumar Vijay Mishra
Multiuser multiple-input multiple-output wireless communications systems have the potential to satisfy the performance requirements of fifth-generation and future wireless networks…
Evaluation Of Orthogonal Chirp Division Multiplexing For Automotive Integrated Sensing And Communications
Sangeeta Bhattacharjee, Kumar Vijay Mishra, Ramesh Annavajjala +1
We consider a bistatic vehicular integrated sensing and communications (ISAC) system that employs the recently proposed orthogonal chirp division multiplexing (OCDM) multicarrier w…
Information Geometry and Classical Cramér-Rao Type Inequalities
Kumar Vijay Mishra, M. Ashok Kumar
We examine the role of information geometry in the context of classical Cramér-Rao (CR) type inequalities. In particular, we focus on Eguchi's theory of obtaining dualistic geometr…
Generalized Bayesian Cramér-Rao Inequality via Information Geometry of Relative -Entropy
Kumar Vijay Mishra, M. Ashok Kumar
The relative -entropy is the Rényi analog of relative entropy and arises prominently in information-theoretic problems. Recent information geometric investigations on this quant…
Cramér-Rao Lower Bounds Arising from Generalized Csiszár Divergences
M. Ashok Kumar, Kumar Vijay Mishra
We study the geometry of probability distributions with respect to a generalized family of Csiszár -divergences. A member of this family is the relative -entropy which is als…
Information Geometric Approach to Bayesian Lower Error Bounds
M. Ashok Kumar, Kumar Vijay Mishra
Information geometry describes a framework where probability densities can be viewed as differential geometry structures. This approach has shown that the geometry in the space of…
Sub-Nyquist Channel Estimation over IEEE 802.11ad Link
Kumar Vijay Mishra, Yonina C. Eldar
Nowadays, millimeter-wave communication centered at the 60 GHz radio frequency band is increasingly the preferred technology for near-field communication since it provides transmis…
Online Dictionary Learning Aided Target Recognition In Cognitive GPR
Fabio Giovanneschi, Kumar Vijay Mishra, Maria Antonia Gonzalez-Huici +2
Sparse decomposition of ground penetration radar (GPR) signals facilitates the use of compressed sensing techniques for faster data acquisition and enhanced feature extraction for…
Performance of time delay estimation in a cognitive radar
Kumar Vijay Mishra, Yonina C. Eldar
A cognitive radar adapts the transmit waveform in response to changes in the radar and target environment. In this work, we analyze the recently proposed sub-Nyquist cognitive rada…
Spectrum Sharing Radar: Coexistence via Xampling
Deborah Cohen, Kumar Vijay Mishra, Yonina C. Eldar
This paper presents a spectrum sharing technology enabling interference-free operation of a surveillance radar and communication transmissions over a common spectrum. A cognitive r…
Cognitive Sub-Nyquist Hardware Prototype of a Collocated MIMO Radar
Kumar Vijay Mishra, Eli Shoshan, Moshe Namer +6
We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar. The…
Block Iterative Reweighted Algorithms for Super-Resolution of Spectrally Sparse Signals
Myung Cho, Kumar Vijay Mishra, Jian-Feng Cai +1
We propose novel algorithms that enhance the performance of recovering unknown continuous-valued frequencies from undersampled signals. Our iterative reweighted frequency recovery…