78 citations · 87 across the 6 of their papers we have counts for
7 papers
Jamming-Resilient Sparse Delay-Doppler NOMA: Unitary Precoding, Randomized Active Sets, and Superincreasing Power Allocation
Michel Kulhandjian, Hovannes Kulhandjian, Theodoros A. Tsiftsis
We propose a sparse delay-Doppler NOMA scheme resilient to intentional jamming. The transmitter places user data on a small random subset of delay-Doppler bins, spreads the result…
Spectral-Domain Spreading via Hadamard Transform for Robust Downlink Non-Orthogonal Multiple Access
Yaakoub Berrouche, Theodoros A. Tsiftsis
Non-orthogonal multiple access (NOMA) systems allowing multiple users sharing the same resource block offer significant gains in spectral efficiency which can enable the required m…
AI-based Drone Assisted Human Rescue in Disaster Environments: Challenges and Opportunities
Narek Papyan, Michel Kulhandjian, Hovannes Kulhandjian +1
In this survey we are focusing on utilizing drone-based systems for the detection of individuals, particularly by identifying human screams and other distress signals. This study h…
Delay-Doppler Domain Pulse Design for OTFS-NOMA
Michel Kulhandjian, Hovannes Kulhandjian, Gunes Karabulut Kurt +1
We address the challenge of developing an orthogonal time-frequency space (OTFS)-based non-orthogonal multiple access (NOMA) system where each user is modulated using orthogonal pu…
Low-Complexity Detection for Faster-than-Nyquist Signaling based on Probabilistic Data Association
Michel Kulhandjian, Ebrahim Bedeer, Hovannes Kulhandjian +2
In this paper, we investigate the sequence estimation problem of faster-than-Nyquist (FTN) signaling as a promising approach for increasing spectral efficiency (SE) in future commu…
Uniquely Decodable Ternary Codes for Synchronous CDMA Systems
Michel Kulhandjian, Claude D'Amours, Hovannes Kulhandjian
In this paper, we consider the problem of recursively designing uniquely decodable ternary code sets for highly overloaded synchronous code-division multiple-access (CDMA) systems.…