Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Lebl Aleksandar"'
Publikováno v:
Scientific Technical Review, Vol 73, Iss 1, Pp 13-17 (2023)
This paper presents the simulation of mobile telephony systems realized in Excel program. Although primarily intended for other applications, Excel has several advantages over other specialized programs for simulation purposes. Excel application for
Externí odkaz:
https://doaj.org/article/0f468cb0834b479780d4b1790c19b8a2
Autor:
Matić Vladimir S., Mitić Dragan S., Markov Žarko M., Lebl Aleksandar V., Marinković-Nedelicki Verica B.
Publikováno v:
Tehnika, Vol 76, Iss 2, Pp 187-193 (2021)
New modern technologies in mobile telephony overcome the possibilities of GSM systems. VAMOS technique is one way to improve traffic properties of traditional GSM systems. Our aim is to analyze the level of this improvement achieved by VAMOS implemen
Externí odkaz:
https://doaj.org/article/d3e9e5948278490cb8eba0ae1fe8d3a7
Publikováno v:
Scientific Technical Review, Vol 71, Iss 2, Pp 46-52 (2021)
Malicious drones jamming is a subject of numerous researches in the world. The implemented jamming strategy is different in various cases and each improvement in the analysis, modeling and realization contributes to the jamming procedures originality
Externí odkaz:
https://doaj.org/article/20cf315e675144f9928a1f553bcbd937
Publikováno v:
Yugoslav Journal of Operations Research, Vol 30, Iss 1, Pp 109-119 (2020)
The output power of traffic channels in one cell of GSM like systems is estimated in this paper. We consider the real case: the number of users is much higher than the number of channels, the output power of one channel depends on the cube of the
Externí odkaz:
https://doaj.org/article/9f3ee5f800954d6ba14f692285f8e944
Publikováno v:
Scientific Technical Review, Vol 70, Iss 1, Pp 21-28 (2020)
The characteristics of combined and comb jamming of RCIED activation messages are presented in this paper. Combined jamming signal is formed as the sum of swept sinusoidal signal and noise signal, while comb jamming signal means that its spectrum has
Externí odkaz:
https://doaj.org/article/c855cec4b8124bfea4789661a19c06e4
Publikováno v:
Serbian Journal of Electrical Engineering, Vol 16, Iss 3, Pp 405-417 (2019)
In this paper we present the dilemma dealing with the choice of speech segment duration and the calculation of speech signal quality in the packet telephone network of Electricity supply industry (ESI). The analyzed signal is packetized by one pac
Externí odkaz:
https://doaj.org/article/a711c78430f343048a2b52dc53f2c90d
Publikováno v:
Tehnika, Vol 74, Iss 2, Pp 245-250 (2019)
In this paper it is analyzed the influence of user moving in the base station cell where power control is implemented on the change of transmitted base station energy comparing to the energy, which is necessary for stationary user. It is proved by ca
Externí odkaz:
https://doaj.org/article/c4a7a4ceb53f4168bc9292a0ab2935c1
Publikováno v:
Yugoslav Journal of Operations Research, Vol 27, Iss 1, Pp 99-107 (2017)
In this paper we consider the influence of a call forwarding service on the traffic process in modern telecommunication networks. We analyse in detail only the case when the called user is busy. It is proved that call forwarding not only increases
Externí odkaz:
https://doaj.org/article/e2a7eca152c244ea8afb329ce48de1c7
Autor:
Lebl Aleksandar V., Mitić Dragan S., Markov Žarko M., Šuh Tomislav I., Mileusnić Mladen Đ., Jovanović Predrag N., Matić Vladimir S., Trenkić Branimir M., Popović Miroslav V., Tomić Željka M., Daković Petar B., Vidaković Ivan Lj., Mitrović Borivoje B.
Publikováno v:
Tehnika, Vol 72, Iss 3, Pp 383-391 (2017)
This paper summarizes the programs intended for simulation of traffic processes in different telecommunications systems. These programs are developed, implemented and verified by the members of the Institute IRITEL through numerous scientific papers
Externí odkaz:
https://doaj.org/article/6810c2ed09d5476f9435ad206c5d844e
Publikováno v:
Scientific Technical Review, Vol 67, Iss 1, Pp 54-60 (2017)
In this paper, the systems of telepharmacy services are presented considering several aspects. The first part considers the basic components of the telepharmacy systems. Examples of telepharmacy application in military services and, above all, in rur
Externí odkaz:
https://doaj.org/article/8dcd7b5b838d45fe9f35d01a4aa52f39