Title :
Cross-Layer modeling for video quality loss on WLANs
Author :
Batalha, I.S. ; Castro, B.S.L. ; Lopes, A.V.R. ; Pelaes, E.G. ; Cavalcante, G.P.S.
Author_Institution :
Lab. for Comput. & Telecommun., Fed. Univ. of Para, Belem, Brazil
Abstract :
This article proposes two empirical models for IEEE 802.11g/n networks which aim to predict the quality loss on a video stream, based on a relationship between the proposed metric and the received power level in dBm. For such a purpose, PSNR (Peak Signal-to-Noise Ratio) is used for deriving PSNR Loss, which is used as a metric. It is also proposed an adjustment in ITU-R P.1238-2 used for indoor propagation prediction, based on coverage analysis. The carried out measurements show that PSNR Loss and received power level are inversely proportional in their relationship. For finding the optimal ITU-R and Cross-Layer model parameters, linear least squares algorithm has been used. Data from measurement campaigns were used as reference to adjust both models.
Keywords :
indoor radio; least squares approximations; radiowave propagation; video streaming; wireless LAN; IEEE 802.11g network; IEEE 802.11n network; PSNR loss; WLAN; coverage analysis; cross-layer model; indoor propagation prediction; linear least square algorithm; optimal ITU-R P.1238-2 model; peak signal-to-noise ratio; video quality loss; video stream; Computational modeling; Floors; IEEE 802.11g Standard; Mathematical model; Predictive models; Propagation losses; Cross-Layer; IEEE 802.11g/n; ITU-R P.1238-2; Indoor Propagation; PSNR Loss;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
