Paweł Skokowski

• MS
• Engineer at Military University of Technology

Streszczenie: Bezzałogowe statki powietrzne (BSP) odgry-wają coraz większą rolę we współczesnych konfliktach zbrojnych, określanych nawet "wojną dronów". Jednym z zastosowań BSP jest monitoring widma elektromagnetycz-nego w celu budowania świadomości sytuacyjnej. Pojedyn-cze sensory radiowe mogą wykrywać zajętość kanałów lub zbliżające się zagrożen...

In the dynamic landscape of wireless communication, spectrum sensing algorithms play a crucial role in the evolution of Cognitive Radio Networks (CRNs). As CRNs adapt dynamically to varying spectrum conditions, robust spectrum sensing becomes pivotal. In the realm of spectrum sensing, accurate estimation of noise power is paramount for reliable dec...

Fourth-generation (4G) mobile networks are successively replaced by fifth-generation (5G) ones, based on the new releases of the 3rd Generation Partnership Project (3GPP) standard. 5G generation is dedicated to civilian users and the conducted analytical work shows that it has numerous technological gaps that prevent its direct implementation in mi...

This final engineering project is about how 5G Standalone is being used to address various cellular network problems, like implementation and practicality, especially how it can be used to transfer information through Software Defined Radio (SDR) thanks to USRP B200mini. The system will be set up as a representation of the base station. Based on OA...

Situational awareness of armed forces acting in an urban environment is a key factor determining the success of military operations. In 2021 the European Defence Agency established the project on Wireless Sensor Networks for Urban Local Areas Surveillance. The main goal of the project is to assess how the situational awareness in an urban environme...

Fifth-generation (5G) technology is currently developing in mobile networks. The civilian 3rd Generation Partnership Project (3GPP) standard is the basis for this implementation. Higher throughput, network capacity, user density, and lower latency are the main advantages offered by 5G over Long Term Evolution (LTE) and older standards. For this rea...

The dynamic development of microelectronics and wireless communication at the turn of the 20th and 21st centuries contributed to the increase in the availability and popularity of all kinds of unmanned platforms, air, land, surface, and underwater. In the case of unmanned aerial vehicles (UAVs), also popularly known as drones, the significant (cruc...

This paper presents jamming and jamming mitigation techniques, which can be used in relation to emerging military systems based on fifth-generation (5G) technology. Nowadays, 5G technology provides incremental improvements over Long Term Evolution (LTE) networks resulting in the enhancement of civilian communications. Considering enormous possible...

This paper presents a solution for building awareness of the electromagnetic situation in cognitive mobile ad hoc networks (MANET) using the cooperative spectrum sensing method. Signal detection is performed using energy detectors with noise level estimation. Based on the evidence theory, the fusion center decides on the particular channel occupanc...

W artykule przedstawiono praktyczne aspekty zastosowania systemów łączności w obiektach infrastruktury specjalnej. W tym przypadku, skupiono się głównie analizie sposobów zapewnienia łączności pomiędzy schronami podziemnymi lub pomiędzy schronami i mobilnymi elementami ugrupowania wojsk własnych. W artykule skupiono się głównie na aspektach system...

Wireless sensor networks are an increasingly popular tool for monitoring various environmental parameters. They can also be used for monitoring the electromagnetic spectrum. Wireless sensors, due to their small size, typically have simplified radio receivers with reduced sensitivity and use small antennas. As a result, their effective performance a...

Efficient access to the spectral resources becomes a challenge for future military wireless communication systems. It requires spectral situation awareness, knowledge of current regulations, local policies and hardware platform limitations. It can be achieved by cognitive radios, realizing cognitive cycle, consisting typically of continuous observa...

Cognitive Radio (CR) usually performs an analysis of the existing environment, enabling collection of all information on current spectrum use and available resources, to decide on its own transmission parameters to optimize communication performance. From practical point of view, the principal task of spectrum sensing is an efficient detection of d...

Apart from efficient use of assigned spectral resources as a primary user, Cognitive Radio (CR) has the ability to act as a secondary user, utilizing available radio resources, which are not used by primary users for a certain period of time. This paper refers to mobile CR network management, based on multi-stage machine method. The article shows t...

W artykule przedstawiono ideę rozproszonego zarządzania mobilną siecią radiową bazującą na technologii radia kognitywnego. Została ona zaimplementowana w programowym symulatorze CORASMA, zrealizowanym na bazie pakietu OMNet++. Stworzone narzędzie pozwala badać efektywność opracowanych rozwiązań kognitywnych w rozległych sieciach ad hoc, które chara...

Monitorowanie widma (sensing) jest podstawowym narzędziem, które zapewnia faktyczną możliwość tworzenia nowoczesnych sieci w technologii radia kognitywnego. Sensing pozwala śledzić na bieżąco sytuację elek-tromagnetyczną, dzięki czemu można lepiej wykorzystać dostępne zasoby radiowe oraz dostosować działanie sieci do zmiennych warunków środowiskowy...

In the article a structure of multilayer microstrip antenna operating at frequencies 2.4 GHz and 5.8 GHz have been presented. The antenna structure consists of three dielectric layers and two radiant elements; it is supplied by electromagnetic coupling. Moreover problems occurring in multilayer dual-frequency structures have been discussed in the a...

In the article structure of complex systems has been described and levels of radiated undesirable emissions deriving from contemporary IT equipment found on the European Union market have been defined and estimated. Moreover an analysis of radiated emission for particular equipment interfaces of a portable PC computer and results of identification...

In this paper we present methods enabling detection, interception and analysis of GSM signals including data cryptanalysis using passive methods. Presented procedures enable estimation of the signal basic parameters, identification of the transmission standard, signal demodulation and packet defragmentation. Next, cryptanalysis of intercepted data...

W artykule przedstawiono metody umożliwiające analizę sygnałów bezprzewodowych sieci komputerowych WLAN oraz sygnałów systemu telefonii komórkowej trzeciej generacji UMTS. Zaprezentowano w nim opracowane procedury pozwalające określić podstawowe parametry sygnału, identyfikację standardu oraz poznać istotne informacje o działającej sieci WLAN i ana...

In this paper we present methods enabling the analysis and detection of the Universal Mobile Telecommunications System (UMTS) signals. Presented procedures enable estimation of the basic parameters of the signal, identification of the standard and provide knowledge concerning essential information about the transmitted signal. Efficiency tests of p...