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 "packet" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 64
Tytuł:
Simple analysis of the impact of packet loss and delay on voice transmission quality
Autorzy:
Perlicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/309277.pdf
Data publikacji:
2002
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
E-model
packet network
packet loss
delay
transmission quality rating
Opis:
In this paper a simple analytical expression based on E-model is applied to analyse the impact of packet loss and delay on voice transmission quality. The relationship between overall transmission quality rating, packet loss and delay G.711, G.723 and G.729 codes is presented.
Źródło:
Journal of Telecommunications and Information Technology; 2002, 2; 53-56
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oprogramowanie Herkules do obliczania parametrów wytrzymałosciowych elementów obudowy górniczej
The packet Herkules of software for calculation results of strength tests of mining support units
Autorzy:
Pacześniowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/340853.pdf
Data publikacji:
2010
Wydawca:
Główny Instytut Górnictwa
Tematy:
pakiet Herkules
Herkules packet
Opis:
Przedstawiono założenia, opis oraz sposób posługiwania się programami komputerowymi zawartymi w pakiecie Herkules, które są przeznaczone do obliczania parametrów wytrzymałościowych elementów obudów górniczych, na podstawie wyników badań stanowiskowych.
Assumptions, description, as well as the way of use of computer programmes contained in Herkules packet were presented, which are designed for calculation of strength parameters of mining support units, on the basis of results of stand tests.
Źródło:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2010, 4; 59-73
1643-7608
Pojawia się w:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of Package Waves
Autorzy:
Sadatian, S. Davood
Powiązania:
https://bibliotekanauki.pl/articles/1182890.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Wave Packet; Synchrotron radiation
Opis:
An important application of simulation methods in the fields of Computational Physics, Physical Chemistry and quantum chromodynamics used to perform complex calculations related to the construction of the thermal covering on a spacecraft. In this study, we tried to establish a framework of appropriate software known as Computational Physics Laboratory and simulate a propagation of waves by computer.
Źródło:
World Scientific News; 2016, 53, 3; 309-322
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SMM Clos-Network Switches under SD Algorithm
Autorzy:
Kleban, J.
Warczyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/307990.pdf
Data publikacji:
2018
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
clos-network switch
packet dispatching algorithms
packet switching networks
stability of switching network
Opis:
This paper is devoted to evaluating the performance of Space-Memory-Memory (SMM) Clos-network switches under a packet dispatching scheme employing static connection patterns, referred to as Static Dispatching (SD). The control algorithm with static connection patterns can be easily implemented in the SMM fabric due to bufferless switches in the first stage. Stability is one of the very important performance factors of packet switching nodes. In general, a switch is stable for a particular arrival process if the expected length of the packet queues does not increase without limitation. To prove the stability of the SMM Clos-network switches considered under the SD packet dispatching scheme the discrete Markov chain model of the switch is used and Foster’s criteria to extend Lyapunov’s second (direct) method of stability investigation of discrete time stochastic systems are used. The results of simulation experiments, in terms of average cell delay and packet queue lengths, are shown as well.
Źródło:
Journal of Telecommunications and Information Technology; 2018, 1; 24-31
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of The Effectiveness of Online Electronic Learning System Using Data Traffic Network Performance Management to Succeed Merdeka Learning : Merdeka Campus During the Covid-19 Pandemic
Autorzy:
Budiyanto, Setiyo
Silalahi, Lukman Medriavin
Silaban, Freddy Artadima
Sitorus, Henry Binsar Hamonangan
Rochendi, Agus Dendi
Ismail, Mochamad Furqon
Powiązania:
https://bibliotekanauki.pl/articles/2055225.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
delay
throughput
packet loss
education
Opis:
The problems in the Covid-19 pandemic have a major influence on the field of education with the use of technology to support the teaching and learning process to facilitate students who do home learning activities. The proposed concept of freedom of learning is a more comprehensive concept such as portfolio and assignments such as group assignments, writings, and so on that are done in full online by adding additional features such as Teaching and Learning Activities and Assessment through information technology media. (E-Learning / Learning Management System). The method proposed in this research is the Peer Connection Queue (PCQ) method on mikrotik operating systems. PCQ method is a program to manage network traffic in Quality of Services (QoS). Bandwidth management methods. The hypothesis formulated is to create bandwidth management with PCQ so that bandwidth sharing is automatically and evenly distributed to multi clients. Therefore, in this research finally formulated into the goal of E-Learning effectiveness analysis using bandwidth management analysis method, which will be measured and analyzed in this research is throughput, delay, jitter, and packet loss. So that the final result of this research obtained the feasibility of the teaching and learning process that is carried out effectively.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 4; 595--601
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survey of Several IP Traceback Mechanisms and Path Reconstruction
Autorzy:
Rajkumar, M. Newlin
Amsarani, R.
Shiny, M. U.
Powiązania:
https://bibliotekanauki.pl/articles/1191427.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Dos attack
Packet marking
Packet logging
Probabilistic packet marking
Hash based scheme
reflector attack
ICMP
passive IP traceback
contol flooding
input debugging
Opis:
In real world the peoples having a lot of attacks troubles in the network. The unauthorized persons or hackers are use the another person’s IP address or use the attackers nearest IP address with in the area. If some kinds attacks such as DOS, DDOS attacks are create a lot of issues in network so difficult to find the spoofers or attackers. In this papper presents the Several IP Traceback Mechanism and Path Reconstruction.
Źródło:
World Scientific News; 2016, 40; 12-22
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ kontrolera TNC na opóźnienia transmisji w sieci Packet Radio
TNC Controller Influence on Transmission Delays in Packet Radio Network
Autorzy:
Zieliński, B.
Powiązania:
https://bibliotekanauki.pl/articles/156649.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
sieć Packet Radio
kontroler TNC
opóźnienia transmisji
Packet Radio network
TNC controller
transmission delays
Opis:
Kontrolery TNC są układami mikroprocesorowymi, służącymi do przesyłu informacji w sieci Packet Radio. W pracy przedstawiono wyniki badań opóźnień rozpoczęcia i zakończenia transmisji w doświadczalnej sieci Packet Radio, uzyskane przy użyciu różnych typów kontrolerów TNC. Wyniki te skonfrontowano z wynikami obliczeń z wykorzystaniem wprowadzonego wcześniej analitycznego modelu kontrolera TNC. Przedstawione rozważania mogą posłużyć do oceny możliwości zastosowania kontrolerów TNC w określonych aplikacjach uwarunkowanych czasowo.
TNC controllers are microprocessor-based circuits used as network adapters for amateur Packet Radio network. They can, however, be used in other applications, e.g., remote control or telemetry. In such applications, it is often necessary to estimate transmission delays. This paper briefly presents the previously developed analytical model that allows estimating delays of transmission start and end. Calculation results obtained with this model are used as a reference point for results obtained in an experimental Packet Radio network using various types of TNC controllers. These results clearly show that the processing power of the TNC controller microprocessor has great influence on the aforementioned transmission delays. How-ever, detailed analysis of the results shows that software-dependent protocol implementation issues also influence network achievements. Thus, it requires further research using a common hardware platform with various types and versions of the software. The presented considerations can help in analysis of TNC controller application possibilities in certain time-bounded applications.
Źródło:
Pomiary Automatyka Kontrola; 2011, R. 57, nr 1, 1; 39-41
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of Modified Adaptive Heuristic Critic Algorithm for Novel Scheduling Mechanism in Packet-Switched Networks
Autorzy:
Jednoralski, M.
Kacprzak, T.
Powiązania:
https://bibliotekanauki.pl/articles/92909.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
reinforcement learning
telecommunication networks
packet scheduling
Opis:
In this paper a novel scheduling algorithm of packet selection in a switch node for transmission in a network channel, based on Reinforcement Learning and modified Adaptive Heuristic Critic is introduced. A comparison of two well known scheduling algorithms: Earliest Deadline First and Round Robin shows that these algorithms perform well in some cases, but they cannot adapt their behavior to traffic changes. Simulation studies show that novel scheduling algorithm outperforms Round Robin and Earliest Deadline First by adapting to changing of network conditions.
Źródło:
Studia Informatica : systems and information technology; 2005, 2(6); 21-34
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Light Weight Clustered Trust Sensing Mechanism for Internet of Things Network
Autorzy:
Rajendra Prasad, M.
Krishna Reddy, D.
Powiązania:
https://bibliotekanauki.pl/articles/2055236.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
internet of things
trust sensing
clustering
mobility
packet forwarding factor
malicious detection rate
packet delivery ratio
Opis:
Internet of Things (IoT) is the new research paradigm which has gained a great significance due to its widespread applicability in diverse fields. Due to the open nature of communication and control, the IoT network is more susceptible to several security threats. Hence the IoT network requires a trust aware mechanism which can identify and isolate the malicious nodes. Trust Sensing has been playing a significant role in dealing with security issue in IoT. A novel a Light Weight Clustered Trust Sensing (LWCTS) model is developed which ensures a secured and qualitative data transmission in the IoT network. Simulation experiments are conducted over the proposed model and the performance is compared with existing models. The obtained results prove the effectiveness when compared with existing approaches.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 1; 5--12
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance evaluation of the multiple output queueing switch with different buffer arrangements strategy
Autorzy:
Danilewicz, G.
Kabaciński, W.
Pleban, J.
Parniewicz, D.
Dąbrowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/308008.pdf
Data publikacji:
2006
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
packet switching
switch fabric
multiple output queueing
Opis:
Performance evaluation of the multiple output queueing (MOQ) switch recently proposed by us is discussed in this paper. In the MOQ switch both the switch fabric and buffers can operate at the same speed as input and output ports. This solution does not need any speedup in the switch fabric as well as any matching algorithms between inputs and outputs. In this paper new performance measures for the proposed MOQ switch are evaluated. The simulation studies have been carried out for switches with different buffer arrangements strategy and of capacity 2×2, 4×4, 8×8, 16×16 and 32×32, and under selected traffic patterns. The simulations results are also compared with OQ switches of the same sizes.
Źródło:
Journal of Telecommunications and Information Technology; 2006, 3; 43-48
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of a method for enumerating the most probable packet arrangements
Autorzy:
Szcześniak, I.
Powiązania:
https://bibliotekanauki.pl/articles/121700.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
Tematy:
packet networks
synchronous network
sieci pakietowe
sieć synchroniczna
Opis:
The problem of calculating routing probabilities in packet synchronous networks, such as optically-switched packet networks, involves enumerating packet arrangements. Previously we published a method for enumerating the most probable packet arrangements, and in this article we present its novel graph interpretation and evaluate the method for several stop conditions and for the Poisson and geometric probability distributions of arriving packets.
Źródło:
Scientific Issues of Jan Długosz University in Częstochowa. Mathematics; 2011, 16; 147-152
2450-9302
Pojawia się w:
Scientific Issues of Jan Długosz University in Częstochowa. Mathematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive wavelet techniques for compressing digital mammograms
Autorzy:
Bruckmann, A.
Flatscher, H.
Schell, T.
Uhl, A.
Powiązania:
https://bibliotekanauki.pl/articles/1954514.pdf
Data publikacji:
1999
Wydawca:
Politechnika Gdańska
Tematy:
wavelet compression
wavelet packet
time-varying decomposition
NSMRA
mammograms
Opis:
In this work we investigate the possible benefit of employing adaptive wavelet algorithms instead of the classical fixed pyramidal wavelet decomposition for the compression of digital mammograms. In particular, we target on adaptive wavelet packet and NSMRA decompositions. We observe that information cost function optimized wavelet packet subband structures do not offer compression performance gain in this case whereas NSMRA decompositions moderately improve the results of classical wavelet decompositions. Due to the lack of fast and reliable search algorithms fixed NSMRA decompositions need to be generated and employed for classes of similar images.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1999, 3, 4; 381-396
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sleep Snoring Sound Recognition Based on Wavelet Packet Transform
Autorzy:
Ding, Li
Peng, Jianxin
Zhang, Xiaowen
Song, Lijuan
Powiązania:
https://bibliotekanauki.pl/articles/31339924.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
snoring recognition
wavelet packet transform
feature selection
machine learning
Opis:
Snoring is a typical and intuitive symptom of the obstructive sleep apnea hypopnea syndrome (OSAHS), which is a kind of sleep-related respiratory disorder having adverse effects on people’s lives. Detecting snoring sounds from the whole night recorded sounds is the first but the most important step for the snoring analysis of OSAHS. An automatic snoring detection system based on the wavelet packet transform (WPT) with an eXtreme Gradient Boosting (XGBoost) classifier is proposed in the paper, which recognizes snoring sounds from the enhanced episodes by the generalization subspace noise reduction algorithm. The feature selection technology based on correlation analysis is applied to select the most discriminative WPT features. The selected features yield a high sensitivity of 97.27% and a precision of 96.48% on the test set. The recognition performance demonstrates that WPT is effective in the analysis of snoring and non-snoring sounds, and the difference is exhibited much more comprehensively by sub-bands with smaller frequency ranges. The distribution of snoring sound is mainly on the middle and low frequency parts, there is also evident difference between snoring and non-snoring sounds on the high frequency part.
Źródło:
Archives of Acoustics; 2023, 48, 1; 3-12
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pupils’ Opinions on Digital Systems Education Enriched by DCBLP Discourse
Autorzy:
Hapl, Lukáš
Kostolányová, Kateřina
Habiballa, Hashim
Powiązania:
https://bibliotekanauki.pl/articles/1964300.pdf
Data publikacji:
2021-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
DCBLP
digital systems
e-learning
Packet Tracer
students’ opinions
Opis:
The article presents knowledge about the modified e-learning on-line synchronous teaching of digital systems, which took place in the period of widespread closure of schools during almost the entire school year 2020/2021 at a secondary school with an IT focus. The importance of teaching digital systems in computer science and the integration of teaching into available lessons is briefly clarified. Furthermore, the content of teaching is presented, including its modification by elements of programming by DCBLP discourse and links to existing knowledge about this use from previous years. The subject of research interest will be the specific effects of changes on students’ opinions regarding the content of the subject. For this purpose, a qualitative investigation based on the design of the grounded theory will be used. The work brings partial knowledge that can serve as additional material for the determination of other research questions, hypotheses and identification of potential problems in teaching. The results show the pupils’ interest in the digital systems enriched by the programming discourse reveals the possible perception of a long time distance learning in this area.
Źródło:
The New Educational Review; 2021, 65; 200-210
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Voice over IP Transmission Degradations on MAP-EM-GMM Speaker Verification Performance
Autorzy:
Maciejko, W.
Powiązania:
https://bibliotekanauki.pl/articles/177874.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
automatic speaker verification
packet loss
speech compression
voice over IP
Opis:
Despite the growing importance of packet switching systems, there is still a shortage of thorough analyses of VoIP transmission effect on speech and speaker recognition performance. Voice over IP transmission systems use packet switching. There is no guarantee of delivery. The main disadvantage of VoIP is a packet loss which has a major impact on the performance experienced by the users of the network. There are several techniques to mask the effects of a packet loss, referred to as packet loss concealment. In this study, the effect of voice transmission over IP on automatic speaker verification system performance was investigated. The analyzed system was based on MAP-EM-GMM modelling methods. Four various speech codecs of H.323 standard were investigated with special emphasis placed on the packet loss phenomenon and various packet loss concealment techniques.
Źródło:
Archives of Acoustics; 2015, 40, 3; 407-417
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 64

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