Cross-Layer joint optimisation of FEC channel codes and Multiple Description Coding for video delivery over IEEE 802.11e links

Authors:
Simone Milani;Giancarlo Calvagno;Riccardo Bernardini;Pamela Zontone
Affiliations:
Department of Information Engineering (DEI), University of Padova, Padova, Italy.;Department of Information Engineering (DEI), University of Padova, Padova, Italy.;Dipartimento di Ingegneria Elettrica, Gestionale e Meccanica (DIEGM), University of Udine, Udine, Italy.;Dipartimento di Ingegneria Elettrica, Gestionale e Meccanica (DIEGM), University of Udine, Udine, Italy
Venue:
International Journal of Internet Protocol Technology
Year:
2009

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Abstract

This paper presents two cross-layer optimisation strategies based on the IEEE 802.11e standard that enable a robust video transmission using adaptively Forward Error Correction channel codes at transport layer and a Multiple Description Coding architecture. The first approach classifies the characteristics of the sequence to be coded, while the second relies on a parametric model of the distortion which is estimated during the coding operations. The performances of these schemes are then improved by a packet classification strategy. Experimental results show that both cross-layer optimisation algorithms perform well with a small computational effort but different playout delays.