no code implementations • 18 Jul 2023 • YuAn Liu, Moein Ahmadi, Johann Fuchs, Mohammad Alaee-Kerahroodi, M. R. Bhavani Shankar
The beat signal models of time division multiplexing (TDM)-MIMO are adapted to RT outputs.
no code implementations • 8 May 2023 • Tong Wei, Linlong Wu, Kumar Vijay Mishra, M. R. Bhavani Shankar
This surface is crucial for designing compact low-cost wideband wireless systems, wherein ultra-massive antenna arrays are required to compensate for the losses incurred by severe attenuation and diffraction.
no code implementations • 27 Sep 2022 • Linlong Wu, Mohammad Alaee-Kerahroodi, M. R. Bhavani Shankar
Pulse compression can enhance both the performance in range resolution and sensitivity for weather radar.
no code implementations • 14 Apr 2022 • Ahmet M. Elbir, Kumar Vijay Mishra, M. R. Bhavani Shankar, Symeon Chatzinotas
The intelligent reflecting surface (IRS) alters the behavior of wireless media and, consequently, has potential to improve the performance and reliability of wireless systems such as communications and radar remote sensing.
no code implementations • 13 Dec 2021 • Ehsan Raei, Saeid Sedighi, Mohammad Alaee-Kerahroodi, M. R. Bhavani Shankar
Motivated by this fact, in this paper, we propose a framework for shaping the beampattern in MIMO radar systems under the constraints simultaneously ensuring unimodularity, desired spectral occupancy and orthogonality of the designed waveform.
no code implementations • 9 Apr 2021 • Tong Wei, Linlong Wu, M. R. Bhavani Shankar
Beampattern synthesis is a key problem in many wireless applications.
no code implementations • 7 Apr 2021 • Ehsan Raei, Mohammad Alaee-Kerahroodi, Prabhu Babu, M. R. Bhavani Shankar
Multiple-input multiple-output (MIMO) radars transmit a set of sequences that exhibit small cross-correlation sidelobes, to enhance sensing performance by separating them at the matched filter outputs.
no code implementations • 8 Mar 2021 • Ehsan Raei, Mohammad Alaee-Kerahrood, M. R. Bhavani Shankar
This paper aims to design a set of transmitting waveforms in cognitive colocated Multi-Input Multi-Output (MIMO) radar systems considering the simultaneous minimization of spatial- and the range- Integrated Sidelobe Level Ratio (ISLR).
no code implementations • 28 Dec 2020 • Saeid Sedighi, M. R. Bhavani Shankar, Mojtaba Soltanalian, Björn Ottersten
Specifically, we first investigate the identifiability conditions for the DoA estimation problem from one-bit SLA data and establish an equivalency with the case when DoAs are estimated from infinite-bit unquantized measurements.
no code implementations • 29 Jul 2020 • Saeid Sedighi, Kumar Vijay Mishra, M. R. Bhavani Shankar, Björn Ottersten
To support the low-capacity links to the fusion center (FC), the range estimates obtained at individual sensors are then converted to one-bit data.
no code implementations • 20 Dec 2019 • Ahmet M. Elbir, Kumar Vijay Mishra, M. R. Bhavani Shankar, Björn Ottersten
Hybrid analog and digital beamforming transceivers are instrumental in addressing the challenge of expensive hardware and high training overheads in the next generation millimeter-wave (mm-Wave) massive MIMO (multiple-input multiple-output) systems.