no code implementations • 20 Oct 2024 • Mouli Chakraborty, Anshu Mukherjee, Ioannis Krikidis, Avishek Nag, Subhash Chandra
Unlike existing models that approximate the noise in quantum channels as merely Gaussian distributed, our model incorporates a hybrid noise analysis, accounting for both quantum Poissonian noise and classical Additive-White-Gaussian Noise (AWGN).
no code implementations • 2 Oct 2024 • Nikos G. Evgenidis, Nikos A. Mitsiou, Sotiris A. Tegos, Panagiotis D. Diamantoulakis, Panagiotis Sarigiannidis, Ioannis Krikidis, George K. Karagiannidis
Semantic communications are considered a promising beyond-Shannon/bit paradigm to reduce network traffic and increase reliability, thus making wireless networks more energy efficient, robust, and sustainable.
no code implementations • 7 Sep 2024 • Mouli Chakraborty, Anshu Mukherjee, Ioannis Krikidis, Avishek Nag, Subhash Chandra
A hybrid quantum noise model incorporating both quantum Poisson noise and classical additive white Gaussian noise (AWGN) can be interpreted as an infinite mixture of Gaussians with weightage from the Poisson distribution.
no code implementations • 26 Aug 2024 • Andreas Nicolaides, Constantinos Psomas, Ioannis Krikidis
Time reversal (TR) is a promising technique that exploits multipaths for achieving energy focusing in high-frequency wideband communications.
no code implementations • 23 Aug 2024 • Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
The elements of the first sub-surface perform energy harvesting (EH), which in turn, provide the required power to the other sub-surface operating in the information transfer (IT) mode.
no code implementations • 7 Jun 2024 • Ioannis Krikidis
Experimental results in a state-of-the-art D-WAVE QA device validate the efficiency of the proposed algorithm.
no code implementations • 13 Apr 2024 • Mouli Chakraborty, Anshu Mukherjee, Ioannis Krikidis, Avishek Nag, Subhash Chandra
This work focuses on optimizing the hybrid quantum noise model to improve the capacity of Gaussian quantum channels using Machine Learning (ML) generated clusters.
no code implementations • 9 Apr 2024 • Christos N. Efrem, Ioannis Krikidis
In this letter, we study a discrete optimization problem, namely, the maximization of channel capacity in fluid multiple-input multiple-output (fluid-MIMO) systems through the selection of antenna ports/positions at both the transmitter and the receiver.
no code implementations • 11 Mar 2024 • Eleni Demarchou, Zulqarnain Bin Ashraf, Dieff Vital, Besma Smida, Constantinos Psomas, Ioannis Krikidis
Then, the half-wave rectifier is used as an integrated simultaneous wireless information and power transfer receiver where the circuit's output is used for decoding information based on amplitude modulation.
no code implementations • 8 Nov 2023 • Arijit Roy, Constantinos Psomas, Ioannis Krikidis
This enables us to perform subband selection when operating over set of orthogonal subbands.
no code implementations • 2 Nov 2023 • Constantinos Psomas, Peter J. Smith, Himal A. Suraweera, Ioannis Krikidis
In this paper, we focus on a continuous FA system (CFAS) and present a general framework for its design and analytical evaluation.
no code implementations • 15 Sep 2023 • Christos N. Efrem, Ioannis Krikidis
In the case of continuous phase shifts, we design a dynamic programming (DP) algorithm that is theoretically guaranteed to achieve the global maximum with polynomial complexity $O(L\,{\log L})$, where $L$ is the number of IRS elements.
no code implementations • 29 Oct 2022 • Christos N. Efrem, Ioannis Krikidis
In this paper, we study an intelligent reflecting surface (IRS) assisted communication system with single-antenna transmitter and receiver, under imperfect channel state information (CSI).
no code implementations • 4 May 2022 • Constantinos Psomas, Ghassan M. Kraidy, Kai-Kit Wong, Ioannis Krikidis
From a transceiver's standpoint, this can be materialized through the implementation of fluid antennas (FAs).
no code implementations • 9 Mar 2022 • Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
This paper studies the performance of a differential chaos shift keying (DCSK)-based wireless power transfer (WPT) setup in a frequency selective scenario.
no code implementations • 31 Jan 2022 • Konstantinos Ntougias, Ioannis Krikidis
This study considers the Joint Transmit/Reflect Beamforming and Power Splitting (JTRBPS) optimization problem in a spectrum underlay setting, such that the transmit sum-energy of the intelligent reflecting surface (IRS)-aided secondary transmitter (ST) is minimized subject to the quality-of-service requirements of the PS-simultaneous wireless information and power transfer (SWIPT) secondary receivers and the interference constraints of the primary receivers (PR).
no code implementations • 31 Jan 2022 • Constantinos Psomas, Ioannis Krikidis
Our analytical framework provides a complete characterization of the RC filter's impact on the WPT performance.
no code implementations • 28 Jan 2022 • Ioannis Krikidis, Constantinos Psomas
The efficiency of wireless information and power transfer (WIPT) systems requires an essential reevaluation and rethinking of the entire transceiver chain, which is characterized by a bottom-up multi-layer design approach.
no code implementations • 10 Jan 2022 • Christodoulos Skouroumounis, Ioannis Krikidis
Particularly, by using SG tools, we first propose an analytical framework to assess the performance of the considered networks in terms of average signal-to-interference-plus-noise (SINR) ratio, average rate, and mobility-induced time overhead, for scenarios with user mobility{.}
no code implementations • 6 Dec 2021 • Eleni Demarchou, Constantinos Psomas, Ioannis Krikidis
Wireless power transfer (WPT) is a promising technology for powering up distributed devices in machine type networks.
no code implementations • 20 Nov 2021 • Constantinos Psomas, Minglei You, Kai Liang, Gan Zheng, Ioannis Krikidis
In this paper, we provide a complete framework for the design and analysis of far-field SWIPT under safety constraints.
no code implementations • 24 Oct 2021 • Eleni Demarchou, Constantinos Psomas, Ioannis Krikidis
Rate splitting (RS) and wireless edge caching are essential means for meeting the quality of service requirements of future wireless networks.
no code implementations • 4 Oct 2021 • Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
In this paper, we investigate multi-dimensional chaotic signals with respect to wireless power transfer (WPT).
no code implementations • 28 May 2021 • Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
Based on this observation, we propose a novel DCSK-based signal design, which further enhances the WPT capability of the proposed architecture; corresponding analytical expressions for the harvested DC are also derived.
no code implementations • 12 May 2021 • Nikolaos Nomikos, Spyros Zoupanos, Themistoklis Charalambous, Ioannis Krikidis, Athina Petropulu
Mobile networks are experiencing tremendous increase in data volume and user density.
no code implementations • 26 Apr 2021 • José Mairton B. da Silva Jr., Konstantinos Ntougias, Ioannis Krikidis, Gábor Fodor, Carlo Fischione
We investigate the trade-off between the number of communication rounds and communication round time while harvesting energy to compensate the energy expenditure.
no code implementations • 25 Mar 2021 • Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
In this work, we investigate differential chaos shift keying (DCSK), a communication-based waveform, in the context of wireless power transfer (WPT).