Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Natkaniec, Marek" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-6 z 6
    Tytuł:
    An Optimization of Network Performance in IEEE 802.11ax Dense Networks
    Autorzy:
    Natkaniec, Marek
    Kras, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2202997.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dense networks
    IEEE 802.11ax
    network optimization
    BSS coloring
    Opis:
    The paper focuses on the optimization of IEEE 802.11ax dense networks. The results were obtained with the use of the NS-3 simulator. Various network topologies were analyzed and compared. The advantage of using MSDU and MPDU aggregations in a dense network environment was shown. The process of improving the network performance for changes in the transmitter power value, CCA Threshold, and antenna gain was presented. The positive influence of BSS coloring mechanism on overal network efficiency was revealed. The influence of receiver sensitivity on network performance was determined.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 1; 169--176
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An analysis of BSS coloring mechanism in IEEE 802.11ax dense networks
    Autorzy:
    Natkaniec, Marek
    Bieryt, Natalia
    Powiązania:
    https://bibliotekanauki.pl/articles/2200716.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    BSS coloring
    dense networks
    IEEE 802.11ax
    QoS
    Opis:
    The paper presents an analysis of BSS coloring scheme defined in IEEE 802.11ax standard. The efficiency of dense networks for different scenarios was analyzed and compared. This analysis covers various topologies and work configurations through the use of multiple parameters of the PHY and MAC layers. A positive impact of the coloring mechanism on the QoS was observed. The study also analyzed the impact of the RTS/CTS mechanism on the obtained network performance and adequate prioritization of various traffic classes. It was shown that the proper selection of the coloring mechanism parameters in the IEEE 802.11ax standard has a strong impact on QoS and the performance of dense networks.
    Źródło:
    International Journal of Electronics and Telecommunications; 2022, 68, 4; 855--862
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An IEEE 802.11 MAC Layer Covert Channel Based On Supported Rates
    Autorzy:
    Teca, Geovan
    Natkaniec, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/27311917.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    steganography
    covert channel
    IEEE 802.11 networks
    performance evaluation
    Opis:
    Wireless Local Area Networks present several vulnerabilities that are exploited, and as a result, numerous attacks have been developed and used against them. Although countermeasures to detect and eliminate such threats have been created throughout the years, few methods exist to prevent the attacks. IEEE 802.11 covert channels could be considered a candidate to prevent Wi-Fi attacks since they allow secret communication between the client station and the access point without establishing an association. They can be implemented in frames that attackers do not target. This paper presents a new covert channel that prevents Wi-Fi attacks. We also describe metrics, and discuss the performance results of the proposed solution. We show that the new protocol is able to achieve high efficiency of operation.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 2; 293--299
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Performance Analysis of IEEE 802.11ax Networks
    Autorzy:
    Natkaniec, Marek
    Prasnal, Łukasz
    Szymakowski, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/227270.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    802.11ax
    dense networks
    performance analysis
    Opis:
    The paper is focused on the forthcoming IEEE 802.11ax standard and its influence on Wi-Fi networks performance. The most important features dedicated to improve transmission effectiveness are presented. Furthermore, the simulation results of a new transmission modes are described. The comparison with the legacy IEEE 802.11n/ac standards shows that even partial implementation of a new standard should bring significant throughput improvements.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 1; 225-230
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Background Traffic Simulator - The Tool for WLAN Background Traffic Generation in ns-3 Environment
    Autorzy:
    Stryczek, Szymon
    Gwiazdowicz, Mikołaj
    Natkaniec, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2203000.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    background traffic
    ns-3
    simulator
    traffic generation
    WLAN
    Opis:
    In the paper, the BTS (Background Traffic Simulator) tool is proposed to capture network traffic and then reproduce it in a simulations using the ns-3 simulator extension module. This new method of generating background traffic allows for repetitive testing of simulation scenarios under real network conditions. The authors described the differences between the previously available methods and the proposed solution. The operation of all the most important elements of the proposed tool has been described. The influence of the generated background traffic on the simulation scenario was presented as well as the results of the operation.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 1; 177--183
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gastrointestinal obstruction in patients previously treated for ma
    Autorzy:
    Budzyński, Piotr
    Pędziwiatr, Michał
    Kenig, Jakub
    Lasek, Anna
    Winiarski, Marek
    Major, Piotr
    Wałęga, Piotr
    Natkaniec, Michał
    Rubinkiewicz, Mateusz
    Rogala, Joanna
    Budzyński, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/1393965.pdf
    Data publikacji:
    2016
    Wydawca:
    Index Copernicus International
    Tematy:
    gastrointestinal obstruction
    adhesive bowel obstruction
    malignant bowel obstruction
    Opis:
    Bowel obstruction is a common condition in acute surgery. Among the patients, those with a history of cancer consist a particular group. Difficulties in preoperative diagnosis – whether obstruction is benign or malignant and limited treatment options in patients with reoccurrence or dissemination of the cancer are typical for this group. The aim of the study was to analyze causes of bowel obstruction in patients with history of radical treatment due to malignancy. Material and methods. Patients with symptoms of bowel obstruction and history of radical treatment for malignancy who were operated in 2nd and 3rd Department of General Surgery JUCM between 2000 and 2014 were included into the study. The patients were divided into 2 groups based on type of mechanical bowel obstruction (group 1 – adhesions, group 2 – malignant process). Results. 128 patients were included into the study – group 1: 67 (52.3%) and group 2: 61 (47.7%). In the second group bowel obstruction was caused by reoccurrence in 25 patients (40.98%) and dissemination in 36 (59.02%). The mean time between onset of the symptoms of bowel obstruction and the end of treatment for the cancer was 3.7 and 4.4 years, respectively in group 1 and 2 (p>0.05). Median time between onset of the symptoms and admission to Emergency Department was significantly longer in patients with malignant bowel obstruction compared to those with adhesions (11.6 ±17.8 days vs 5.1 ± 6.9 days, p=0.01). Considering type of surgery due to bowel obstruction, in first group in most patients (69.2%) bowel resection was not necessary and in the second group creation of jejuno-, ileo- or colostomy was the most common procedure. Morbidity was significantly higher in second group (45.9% vs 28.26%, p<0.05) but there was no difference in mortality (26% vs 24%, p>0.05). In both groups the most common localization of primary malignancy was colon. Conclusions. In analyzed group of patients frequency of bowel obstruction caused by adhesions and malignancy was similar. However, in patients with bowel obstruction caused by malignancy morbidity was significantly higher and duration of symptoms was longer. There was no diagnostic procedure which would allow to differentiate the cause of bowel obstruction preoperatively and the diagnosis was made during the operation.
    Źródło:
    Polish Journal of Surgery; 2016, 88, 2; 93-98
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies