@inproceedings {Simula.simula.2376,
	title = {Analysis of PHY/Application Cross-Layer Optimization for Scalable Video Transmission in Cellular Networks},
	journal = {IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks (WoWMoM)},
	year = {2013},
	month = {June},
	pages = {1-3},
	publisher = {IEEE},
	type = {Conference},
	abstract = {We investigate the optimization of video transmis- sions over cellular networks by using the H.264 Scalable Video Coding (SVC) at the application layer and an Adaptive Modula- tion and Coding (AMC) scheme at the physical layer. We analyze how the cross-layer optimization (XLO) of these two techniques together performs compared to a sequential and independent selection of video packets and Modulation and Coding Schemes (MCS) with no cross-layer optimization (NXLO), in terms of goodput and packet delivery delay. We formulate an analytical model based on a Markov chain representing the wireless channel, where each state is associated to a different channel quality corresponding to a set of possible choices of video layer and MCS. Our numerical results show that XLO significantly outperforms NXLO for video transmissions, thereby pointing out the strong need for cross-layer solutions in video transmission.},
	keywords = {Conference},
	doi = {10.1109/WoWMoM.2013.6583415},
	author = {Ahmed, Iffat and Badia, Leonardo},
	editor = {IEEE Internatio {Mobile} and Multimedia Networks {WoWMoM}}
}
