MPEG Traffic Generation Matching Intra- And Inter-Gop Correlation  

Oleh:

Lombardo, A. ; Morabito, G. ; Palazzo, S. ; Schembra, G.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Simulation vol. 74 no. 2 (Feb. 1998), page 97-109.
Topik: MPEG; self-similarity; traffic characterization; trace generation; video compression; B-ISDN networks
Fulltext: 97.pdf (1.07MB)

Isi artikel

VBR-compressed video traffic is expected to constitute the majority of the B-ISDN network load in the immediate future. At the moment, the MPEG coding scheme is widely used for many types of applications. On account of the high burstiness and periodicity of the traffic generated by an MPEG encoder, it is crucial to obtain a model for the generation of sequences with the same statistical characteristics of real MPEG traces. In this paper, after demonstrating that intra-GOP correlation, that is, the correlation between frames belonging to the same GoP’, has to be taken into account, an accurate model allowing the generation of an MPEGlike trace is proposed. Moreover, as the MPEG traffic has been demonstrated to be self-similar, that is, it presents a long-range dependence (LRD), the proposed algorithm applies a method based on the Fast Fourier Transform in order to generate selfsimilar traces. This algorithm allows generation of a trace, imposing the short-range dependence and LRD behavior and the probability density function of any given video sequence.

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