activity
20242026
collaborators

11 papers

cs.GT2026

Large Language Models as Strategic Bidding Agents in P2P Energy Trading Markets

Ismail Lotfi, Ali Ghrayeb, Haitham Abu-Rub

Peer-to-peer (P2P) energy trading markets rely on double auction mechanisms to match prosumers and consumers in smart grid distribution networks. However, the strategic behavior of…

cs.GT2026

Strategic Bidding in 6G Spectrum Auctions with Large Language Models

Ismail Lotfi, Ali Ghrayeb

Efficient and fair spectrum allocation is a central challenge in 6G networks, where massive connectivity and heterogeneous services continuously compete for limited radio resources…

cs.LG2026

A Physics-Aware Framework for Short-Term GPU Power Forecasting of AI Data Centers

Mohammad AlShaikh Saleh, Sanjay Chawla, Sertac Bayhan +2

AI data centers experience rapid fluctuations in power demand due to the heterogeneity of computational tasks that they have to support. For example, the power profile of inference…

cs.NI2026

Large Language Models as Bidding Agents in Repeated HetNet Auction

Ismail Lotfi, Ali Ghrayeb, Samson Lasaulce +1

This paper investigates the integration of large language models (LLMs) as reasoning agents in repeated spectrum auctions within heterogeneous networks (HetNets). While auction-bas…

cs.IT2025

Direction-Shift Keying for High-Mobility mmWave Communications: Geometry-Based Resilience to Short Channel Coherence Times and Phase Noise

Mohaned Chraiti, Ozgur Ercetin, Ali Ghrayeb +1

Communication reliability in high-mobility millimeter-wave (mmWave) systems is fundamentally challenged by rapid channel variations, manifested in short channel coherence times, an…

cs.IT2025

Secure Pinching Antenna-aided ISAC

Elmehdi Illi, Marwa Qaraqe, Ali Ghrayeb

In this letter, a pinching antenna (PA)-aided scheme for establishing a secure integrated sensing and communication system (ISAC) is investigated. The underlying system comprises a…

cs.IT2025

Theoretical and Experimental Assessment of Large Beam Codebook at mmWave Devices: How Much is Enough?

Bora Bozkurt, Hasan Atalay Gunel, Mohaned Chraiti +3

Modern millimeter wave (mmWave) transceivers come with a large number of antennas, each of which can support thousands of phase shifter configurations. This capability enables beam…

cs.IT2025

On the Secrecy-Sensing Optimization of RIS-assisted Full-Duplex Integrated Sensing and Communication Network

Elmehdi Illi, Ahmad Bazzi, Marwa Qaraqe +1

Integrated sensing and communication (ISAC) has recently emerged as a viable technique for establishing sensing and communication using the same resources. Nonetheless, the operati…

cs.CR2024

VMGuard: Reputation-Based Incentive Mechanism for Poisoning Attack Detection in Vehicular Metaverse

Ismail Lotfi, Marwa Qaraqe, Ali Ghrayeb +1

The vehicular Metaverse represents an emerging paradigm that merges vehicular communications with virtual environments, integrating real-world data to enhance in-vehicle services.…

math.OC2024

Movable Antennas in Wireless Systems: A Tool for Connectivity or a New Security Threat?

Youssef Maghrebi, Mohamed Elhattab, Chadi Assi +2

The emergence of movable antenna (MA) technology has marked a significant advancement in the field of wireless communication research, paving the way for enhanced connectivity, imp…

eess.SP2024

Coordinated Half-Duplex/Full-Duplex Cooperative Rate-Splitting Multiple Access in Multi-Cell Networks

Mohamed Elhattab, Shreya Khisa, Chadi Assi +3

This paper explores downlink Cooperative Rate-Splitting Multiple Access (C-RSMA) in a multi-cell wireless network with the assistance of Joint-Transmission Coordinated Multipoint (…