Pregled bibliografske jedinice broj: 40029
The source model of VBR video based on modulated TES process
The source model of VBR video based on modulated TES process // Performance and Control of Network Systems / Robert D. van der Mei ; Daniel P. Heyman (ur.).
Boston (MA): SPIE, 1999. str. 130-139 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 40029 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The source model of VBR video based on modulated TES process
Autori
Pilipović, Smiljan ; Ilić, Željko ; Kos, Mladen
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Performance and Control of Network Systems
/ Robert D. van der Mei ; Daniel P. Heyman - Boston (MA) : SPIE, 1999, 130-139
Skup
SPIE 1999.
Mjesto i datum
Boston (MA), Sjedinjene Američke Države, 20.09.1999. - 21.09.1999
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Keywords: VBR video; MPEG; traffic modeling; TES process
Sažetak
The transmission network for video services is expected to be an ATM network because of its ability to support different delay and bit rate requirements, i.e. quality of service (QoS) parameters. ATM technology is based on statistical multiplexing and the QoS parameters can be guaranteed only statistically. Thus it is important to understand the nature of a particular connection before it is accepted for the transport through the network. The nature of compressed video signal is not well understood and numerous models of compressed video are proposed in literature.
MPEG video, as one of the most frequently used encoding standards, consists of I, P, and B frame types. While a strong correlation among the frames of the same type is recognized, a correlation among the frames of different nature is not. Accordingly, most proposed models start from different stochastic processes for different frame types. The model of an MPEG video source is obtained by combining the outcomes of I, P, and B processes according to a given group of pictures (GoP) pattern.
This paper demonstrates that the frames of different types are highly correlated and present a novel model for MPEG video source. The model is based on characteristics of correlated traffic. Instead of using three independent stochastic processes, a single process is used and the outcomes for different frame types are obtained by means of transformations.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
