MASTER THESIS TITLE : Cross - layer optimizations for multimedia services over mobile networks

C Cr ro os ss s-l la ay ye er r o op pt ti im mi iz za at ti io on ns s f fo or r m mu ul lt ti im me ed di ia a s se er rv vi ic ce es s o ov ve er r m mo ob bi il le e n ne et tw wo or rk ks s I IN NT TH HF FT T 2 C Cr ro os ss s-l la ay ye er r o op pt ti im mi iz za at ti io on ns s f fo or r m mu ul lt ti im me ed di ia a s se er rv vi ic ce es s o ov ve er r m mo ob bi il le e n ne et tw wo or rk ks s 2009 3 To the clouds, the rain and finally the sun, a good harvest. C Cr ro os ss s-l la ay ye er r o op pt ti im mi iz za at ti io on ns s f fo or r m mu ul lt ti im me ed di ia a s se er rv vi ic ce es s o ov ve er r m mo ob bi il le e n ne et tw wo or rk ks s I IN NT TH HF FT T 4 C Cr ro os ss s-l la ay ye er r o op pt ti im mi iz za at ti io on ns s f fo or r m mu ul lt ti im me ed di ia a s se er rv vi ic ce es s o ov ve er r m mo ob bi il le e n ne et tw wo or rk ks s 2009 5 Overview The objective of this thesis is to design a scheduler based on the cross layer concept, which improve the video transmission quality in HSDPA networks. This scheduler will be compared with the actual implementation to assess the achievable gain. The comparison will be conducted in a HSDPA system-level simulator to obtain performance results. The proposed improvements will mainly be based in a modification of the video coding procedure and the HSDPA Node B scheduler. The encoder will be capable of signalizing the importance of the type of …