43 citations · 199 across the 34 of their papers we have counts for
26 papers · 1 filter
WIP: Energy-Efficient LLM-Based Serving Cluster Formulation in Cell-Free Massive MIMO
Marcin Hoffmann, Paweł Kryszkiewicz
One way to increase the Energy Efficiency (EE) of 6G wireless networks is to utilize existing network infrastructure more efficiently. This can be achieved by introducing User-Cent…
Modular Multi-Domain Digital Twin Architecture: Sustainable Intent-Driven 6G Management
Berk Buzcu, Marcin Pakula, Gevher Yesevi Keskin +10
Future 6G networks will operate across distributed and heterogeneous domain infrastructures, making conventional single-domain management insufficient for proactive, trustworthy au…
Large-scale wireless network management via Open-RAN Tandem Apps: Cell on/off switching use case
Paweł Kryszkiewicz, Łukasz Kułacz, Marcin Pakuła +5
With growing mobile-network complexity, management and optimization have become increasingly difficult. Centralized algorithms face high control-data overhead and computational loa…
Radio Environment Map for Energy-Efficient User-Centric Cell-Free M-MIMO Network
Marcin Hoffmann, Paweł Kryszkiewicz
This paper proposes a Radio Environment Map (REM) for energy-efficient (EE) serving cluster formulation in a user-centric cell-free network. By incorporating the location of the us…
Nonlinear symbols combining for Power Amplifier-distorted OFDM signal reception
Pawel Kryszkiewicz, Hanna Bogucka
Nonlinear distortion of a multicarrier signal by a transmitter Power Amplifier (PA) can be a serious problem when designing new highly energy-efficient wireless systems. Although t…
Power Amplifier-Aware Transmit Power Optimization for OFDM and SC-FDMA Systems
Pawel Kryszkiewicz
The Single Carrier-Frequency Division Multiple Access (SC-FDMA) is a transmission technique used in the uplink of Long Term Evolution (LTE) and 5G systems, as it is characterized b…
V2V Path Loss Modeling at 26 GHz Based on Real-Traffic Measurements
Pawel Kryszkiewicz, Adrian Kliks, Pawel Sroka +1
In this letter, we investigate single-slope path loss models complemented with shadowing effects in the context of vehicular communications. We present several models obtained base…
Open RAN xApps Design and Evaluation: Lessons Learnt and Identified Challenges
Marcin Hoffmann, Salim Janji, Adam Samorzewski +6
Open Radio Access Networks (RAN) offer diverse economic opportunities. A transition to a flexible, modular approach within the disaggregated RAN framework is crucial, involving car…
Clipping noise cancellation receiver for the downlink of massive MIMO OFDM system
Marcin Wachowiak, Pawel Kryszkiewicz
Massive multiple-input multiple-output (mMIMO) technology is considered a key enabler for the 5G and future wireless networks. In most wireless communication systems, mMIMO is empl…
Why white noise is not enough? On using radio front-end models while designing 6G PHY
Pawel Kryszkiewicz, Pawel Sroka, Marcin Hoffmann +1
From generation to generation there are increasing requirements for wireless standards both in terms of spectral and energy efficiency. While up to now the layered wireless transce…
Beam Management Driven by Radio Environment Maps in O-RAN Architecture
Marcin Hoffmann, Pawel Kryszkiewicz
The Massive Multiple-Input Multiple-Output (M-MIMO) is considered as one of the key technologies in 5G, and future 6G networks. From the perspective of, e.g., channel estimation, e…
Signaling Storm Detection in IIoT Network based on the Open RAN Architecture
Marcin Hoffmann, Pawel Kryszkiewicz
The Industrial Internet of Things devices due to their low cost and complexity are exposed to being hacked and utilized to attack the network infrastructure causing a so-called Sig…
Memory Enabled Bumblebee-based Dynamic Spectrum Access for Platooning Environments
Kuldeep S. Gill, Pawel Kryszkiewicz, Pawel Sroka +2
In this paper, we propose a novel memory-enabled non-uniform sampling-based bumblebee foraging algorithm (MEB) designed for optimal channel selection in a distributed Vehicular Dyn…
Path Loss and Shadowing Modeling for Vehicle-to-Vehicle Communications in Terrestrial TV Band
Pawel Kryszkiewicz, Pawel Sroka, Michal Sybis +1
Vehicle platooning is considered as one of the key use cases for vehicle-to-vehicle (V2V) communications. However, its benefits can be realized only with highly reliable wireless t…
Radio Environment Map and Deep Q-Learning for 5G Dynamic Point Blanking
Marcin Hoffmann, Paweł Kryszkiewicz
Dynamic Point Blanking (DPB) is one of the Coordinated MultiPoint (CoMP) techniques, where some Base Stations (BSs) can be temporarily muted, e.g., to improve the cell-edge users t…
Federated Learning-Based Interference Modeling for Vehicular Dynamic Spectrum Access
Marcin Hoffmann, Pawel Kryszkiewicz, Adrian Kliks
A platoon-based driving is a technology allowing vehicles to follow each other at close distances to, e.g., save fuel. However, it requires reliable wireless communications to adju…
Radio Environment Maps for Dynamic Frequency Selection in V2X Communications
Paweł Sroka, Paweł Kryszkiewicz, Adrian Kliks
In this paper, we investigate the concept of database supported Vehicular Dynamic Spectrum Access (VDSA) for platooning. As various researchers show that the 5.9 GHz band, devoted…
Distributed Vehicular Dynamic Spectrum Access for Platooning Environments
Paweł Sroka, Paweł Kryszkiewicz, Michał Sybis +3
In this paper, we propose a distributed Vehicular Dynamic Spectrum Access (VDSA) framework for vehicles operating in platoon formations. Given the potential for significant congest…
Frequency Selection for Platoon Communications in Secondary Spectrum Using Radio Environment Maps
Marcin Hoffmann, Pawel Kryszkiewicz, Adrian Kliks
Platoon-based driving is an idea that vehicles follow each other at a close distance, in order to increase road throughput and fuel savings. This requires reliable wireless communi…
The Impact of Blocking Cars on Pathloss Within a Platoon: Measurements for 26 GHz Band
Paweł Kryszkiewicz, Adrian Kliks, Paweł Sroka +1
Platooning is considered to be one of the possible prospective implementations of the autonomous driving concept, where the train-of-cars moves together following the platoon leade…
Dynamic Power and Frequency Allocation Scheme for Autonomous Platooning
Paweł Sroka, Adrian Kliks, Michał Sybis +1
In this paper, we consider the use of radio environment maps (REMs) in vehicular dynamic spectrum access (VDSA) for vehicle platooning applications. We propose an algorithm that dy…
Beyond 5G: Big Data Processing for Better Spectrum Utilization
Adrian Kliks, Łukasz Kułacz, Paweł Kryszkiewicz +5
This article emphasizes the great potential of big data processing for advanced user- and situation-oriented, so context-aware resource utilization in future wireless networks. In…
Similarity Measures for Location-Dependent MMIMO, 5G Base Stations On/Off Switching Using Radio Environment Map
Marcin Hoffmann, Paweł Kryszkiewicz
The Massive Multiple-Input Multiple-Output (MMIMO) technique together with Heterogeneous Network (Het-Net) deployment enables high throughput of 5G and beyond networks. However, a…
Energy Savings by Task Offloading to a Fog Considering Radio Front-End Characteristics
Pawel Kryszkiewicz, Filip Idzikowski, Bartosz Bossy +2
Fog computing can be used to offload computationally intensive tasks from battery powered Internet of Things (IoT) devices. Although it reduces energy required for computations in…