34 citations · 43 across the 20 of their papers we have counts for
20 papers
Low-Complexity Multi-Target Detection in ELAA ISAC
Diluka Galappaththige, Shayan Zargari, Chintha Tellambura +1
Multi-target detection and communication with extremely large-scale antenna arrays (ELAAs) operating at high frequencies necessitate generating multiple beams. However, conventiona…
Downlink Beamforming for Cell-Free ISAC: A Fast Complex Oblique Manifold Approach
Shayan Zargari, Diluka Galappaththige, Chintha Tellambura +1
Cell-free integrated sensing and communication (CF-ISAC) systems are just emerging as an interesting technique for future communications. Such a system comprises several multiple-a…
Optimization of Rate-Splitting Multiple Access with Integrated Sensing and Backscatter Communication
Diluka Galappaththige, Shayan Zargari, Chintha Tellambura +1
An integrated sensing and backscatter communication (ISABC) system is introduced herein. This system features a full-duplex (FD) base station (BS) that seamlessly merges sensing wi…
Refined-Deep Reinforcement Learning for MIMO Bistatic Backscatter Resource Allocation
S. Zargari, D. Galappaththige, C. Tellambura
Bistatic backscatter communication facilitates ubiquitous, massive connectivity of passive tags for future Internet-of-Things (IoT) networks. The tags communicate with readers by r…
Transmit Power Optimization for Integrated Sensing and Backscatter Communication
S. Zargari, D. Galappaththige, C. Tellambura
Ambient Internet of Things networks use low-cost, low-power backscatter tags in various industry applications. By exploiting those tags, we introduce the integrated sensing and bac…
A Riemannian Manifold Approach to Constrained Resource Allocation in ISAC
Shayan Zargari, Diluka Galappaththige, Chintha Tellambura +1
This paper introduces a new resource allocation framework for integrated sensing and communication (ISAC) systems, which are expected to be fundamental aspects of sixth-generation…
Sensing and Backscatter Communication Integration: Realizing Efficiency in Wireless Systems for IoT
Shayan Zargari, Diluka Galappaththige, Chintha Tellambura
In an era driven by the Internet of Things (IoT) and rapid wireless communication advances, the synergy between sensing and backscatter communication (BackCom) has emerged as a fro…
Signal Detection in Ambient Backscatter Systems: Fundamentals, Methods, and Trends
Shayan Zargari, Azar Hakimi, Fatemeh Rezaei +2
Internet-of-Things (IoT) is rapidly growing in wireless technology, aiming to connect vast numbers of devices to gather and distribute vital information. Despite individual devices…
Enhancing AmBC Systems with Deep Learning for Joint Channel Estimation and Signal Detection
S. Zargari, A. Hakimi, C. Tellambura +1
The era of ubiquitous, affordable wireless connectivity has opened doors to countless practical applications. In this context, ambient backscatter communication (AmBC) stands out,…
Improved Energy-Based Signal Detection for Ambient Backscatter Communications
S. Zargari, C. Tellambura, A. Maaref
In ambient backscatter communication (AmBC) systems, passive tags connect to a reader by reflecting an ambient radio frequency (RF) signal. However, the reader may not know the cha…
User Scheduling and Trajectory Optimization for Energy-Efficient IRS-UAV Networks with SWIPT
S. Zargari, A. Hakimi, C. Tellambura +1
This paper investigates user scheduling and trajectory optimization for a network supported by an intelligent reflecting surface (IRS) mounted on an unmanned aerial vehicle (UAV).…
IRS-Enabled Backscattering in a Downlink Non-Orthogonal Multiple Access System
Azar Hakimi, Shayan Zargari, Chintha Tellambura +1
Intelligent reflecting surface (IRS)-enabled backscatter communications can be enabled by an access point (AP) that splits its transmit signal into modulated and unmodulated parts.…
Multiuser MISO PS-SWIPT Systems: Active or Passive RIS?
Shayan Zargari, Azar Hakimi, Chintha Tellambura +1
Reconfigurable intelligent surface (RIS)-based communication networks promise to improve channel capacity and energy efficiency. However, the promised capacity gains could be negli…
Energy-Efficient Hybrid Offloading for Backscatter-Assisted Wirelessly Powered MEC with Reconfigurable Intelligent Surfaces
S. Zargari, C. Tellambura, S. Herath
We investigate a wireless power transfer (WPT)-based backscatter-mobile edge computing (MEC) network with a {reconfigurable intelligent surface (RIS)}.In this network, wireless dev…
Resource Management for Transmit Power Minimization in UAV-Assisted RIS HetNets Supported by Dual Connectivity
Ata Khalili, Ehsan Mohammadi Monfard, Shayan Zargari +3
This paper proposes a novel approach to improve the performance of a heterogeneous network (HetNet) supported by dual connectivity (DC) by adopting multiple unmanned aerial vehicle…
Max-Min Fair Energy-Efficient Beamforming Design for Intelligent Reflecting Surface-Aided SWIPT Systems with Non-linear Energy Harvesting Model
Shayan Zargari, Ata Khalili, Qingqing Wu +2
This paper considers an intelligent reflecting sur-face (IRS)-aided simultaneous wireless information and power transfer (SWIPT) network, where multiple users decode data and harve…
Multi-Objective Resource Allocation for IRS-Aided SWIPT
A. Khalili, S. Zargari, Q. Wu +2
In this letter, we study the resource allocation for a multiuser intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) system. Spe…
Resource Allocation of Dual-Hop VLC/RF Systems with Light Energy Harvesting
Shayan Zargari, Mehrdad Kolivand, S. Alireza Nezamalhosseini +3
In this paper, we study the time allocation optimization problem to maximize the sum throughput in a dual-hop heterogeneous visible light communication (VLC)/radio frequency (RF) c…
Multi-objective Resource Allocation for D2D and Enabled MC-NOMA Networks by Tchebycheff Method
Siavash Bayat, Ata Khalili, Shayan Zargari +2
This paper considers a resource allocation problem in device-to-device (D2D) communications sharing the same frequency spectrum. In particular, the CUs utilize non-orthogonal multi…
Joint Design of Transmit Beamforming, IRS Platform, and Power Splitting SWIPT Receivers for Downlink Cellular Multiuser MISO
Shayan Zargari, Shahrokh Farahmand, Bahman Abolhassani
A multiple antenna base station (BS) with an intelligent reflecting surface (IRS) platform, and several single antenna users are considered in the downlink mode. Simultaneous wirel…