Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Vladimir Wieser"'
Publikováno v:
Communications, Vol 16, Iss 1, Pp 72-77 (2014)
In this paper, the 4-Way Directional Power Control with Recoil Loop (4WDPCRL) protocol for power control of directional antennas is presented. We propose the scheme with using of control packets (RTS/CTS/DATA/ACK) for exchanging information about nod
Externí odkaz:
https://doaj.org/article/aa75461dd90d4c38980b194ca7da58e4
Autor:
Robert Hudec, Ladislav Janousek, Miroslav Benco, Pavol Makys, Vladimir Wieser, Martina Zachariasova, Matej Pacha, Vladimir Vavrus, Martin Vestenicky
Publikováno v:
Communications, Vol 15, Iss 2, Pp 95-101 (2013)
The helicopter design is a challenging experience for fatigue concern as it is subjected to a very wide range of low- and high-frequency load cycles per flight, much more than a fixed wing aircraft. Structural Health Monitoring (SHM) seems to have ca
Externí odkaz:
https://doaj.org/article/1000500f57464b85bf7783b1dbcef142
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 7, Iss 1 - 2, Pp 66-70 (2008)
In this contribution, we try to resolve the problem with multipath MIMO channel in wireless environment. To understand the environment, where multipath signal is transported, theoretical models will be applied. We will take a look on theoretical mode
Externí odkaz:
https://doaj.org/article/e603f9551eda453ab8c007937f8ec49f
Autor:
Vladimir Wieser, Vladimir Psenak
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 5, Iss 3, Pp 373-376 (2006)
This article presents the basic theory of power control and deals with the mutual interference among mobile subscribers (basic stations) in uplink (downlink). Considering the SIR requirements, each transmitter in the WCDMA network have to use minimum
Externí odkaz:
https://doaj.org/article/b2d85895c86a4ecf9dbdb2274b0c16de
Autor:
Peter Ziacik, Vladimir Wieser
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 4, Iss 4, Pp 237-240 (2005)
In this article there is the description Kalman filter using as a radio channel state predictor. Simulator of prediction has been created in MATLAB environment and it is capable to simulate the prediction of radio signal envelope by Clark’s model o
Externí odkaz:
https://doaj.org/article/14a27fe8f1f4497eae29bc65acd9fe57
Autor:
Vladimir Psenak, Vladimir Wieser
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 4, Iss 1, Pp 8-13 (2005)
High speed downlink packet access added to UMTS network provides to users data speed up to 10 Mbit/s. The achievement of high data speed is possible due to new link management and link control, and also due to change from power adaptation to modulati
Externí odkaz:
https://doaj.org/article/1e2be867da80455c97a310a1641f18f3
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 4, Iss 3, Pp 194-199 (2005)
In the mobile communication environment the mobile channel is the main limiting obstacle to reach the best performance of wireless system. Modeling of the radio channel consists of two basic fading mechanisms - Long-term fading and Short-term fading.
Externí odkaz:
https://doaj.org/article/bdc0f31ce81248fc89bc7a0631d8bc01
Autor:
Vladimir Holly, Vladimir Wieser
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 4, Iss 4, Pp 249-252 (2005)
Several modulations and coding schemes are used to reach the effective radio resources usage in EDGE networks. The review describes these methods together with base stations interference and variable quality of signal impact to data rate and used cod
Externí odkaz:
https://doaj.org/article/e86e258b0f5841c6a9c7ba5c15cbd264
Autor:
Vladimir Wieser, Vladimir Psenak
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 4, Iss 3, Pp 200-205 (2005)
The main aim of this article is the description of the mobile radio network model, which is used for simulation of authentic conditions in mobile radio network and supports several link adaptation algorithms. Algorithms were designed to increase effi
Externí odkaz:
https://doaj.org/article/f4d2c448eea94933a7c22d4d9f9ac6df
Autor:
Vladimir Wieser, Tomas Marek
Publikováno v:
Communications, Vol 6, Iss 4, Pp 58-62 (2004)
This paper presents the link level simulator developed at the Telecommunication Department of the University of Žilina. The simulator was developed as part of the project VEGA No. 1/0140/03 "Effective radio resources management methods in next gener
Externí odkaz:
https://doaj.org/article/f888ebb84d4e414690287c7feb354906