11 papers
LycheeMemory V2: Efficient Long-Term Memory for LLM Agents via Semantic Segment-Level Consolidation
Dongfang Li, Zixuan Liu, Junmai Wang +5
Long-horizon LLM agents must preserve information from past interactions to support future tasks. Existing memory systems typically rely on eager consolidation, invoking LLMs after…
Constellation Design for Nonlinear Unified SWIPT Receiver Channels with Memory
Triantafyllos Mavrovoltsos, Elio Faddoul, Zulqarnain Bin Ashraf +3
Unified receivers (URs) have emerged as a promising architecture for simultaneous wireless information and power transfer (SWIPT), since a common rectifying front-end enables infor…
Large-scale Tunable Liquid Lens-assisted VLC Systems under Random Receiver Orientation
Kapila W. S. Palitharathna, Constantinos Psomas, Gaofeng Pan +1
This paper investigates the performance of tunable liquid lens (TLL)-assisted receivers in large-scale visible light communication (VLC) systems under random receiver orientation.…
Dual-Diode Unified SWIPT for High Data Rates with Adaptive Detection
Zulqarnain Bin Ashraf, Triantafyllos Mavrovoltsos, Constantinos Psomas +2
Due to their low-complexity and energy-efficiency, unified simultaneous wireless information and power transfer (U-SWIPT) receivers are especially suitable for low-power Internet o…
Sub-6 GHz Beam-Reconfigurable Microfluidic Antenna Using Graphene Liquid for 5G Network
Sasmita Dash, Constantinos Psomas, Ioannis Krikidis
As wireless communication systems continue to grow rapidly, high-performance antennas become increasingly crucial for expanding coverage, improving capacity, and enhancing transmis…
Harnessing Chaotic Signals for Wireless Information and Power Transfer
Priyadarshi Mukherjee, Constantinos Psomas, Ioannis Krikidis
Chaotic dynamical systems have attracted considerable attention due to their inherent randomness and high sensitivity to initial conditions, which makes them ideal for secure wirel…