MAC FER-based codec adaptation for multimedia streaming over wireless networks

Transmitting real-time multimedia data has been a big challenge for wireless communications. The QoS experienced by the multimedia traffic is subject to the time-variant characteristics of the wireless channels. In this paper, a cross-layer algorithm is proposed to combat the wireless channel variation by adjusting the multimedia codec settings according to the MAC frame error rate in real-time. The proposed algorithm is computational efficient and the numerical experiments show that the cross-layer algorithm indeed achieves better performance even for the wireless channels in severe conditions.

[1]  Paolo Bucciol,et al.  Cross-layer perceptual ARQ for H.264 video streaming over 802.11 wireless networks , 2004, IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..

[2]  Wolfgang Kellerer,et al.  Application-driven cross-layer optimization for video streaming over wireless networks , 2006, IEEE Communications Magazine.

[3]  Panos Nasiopoulos,et al.  A Cross Layer Optimization Mechanism to Improve H.264 Video Transmission over WLANs , 2007, 2007 4th IEEE Consumer Communications and Networking Conference.

[4]  Reginald L. Lagendijk,et al.  Optimized video streaming over 802.11 by cross-layer signaling , 2006, IEEE Communications Magazine.

[5]  Saswati Sarkar,et al.  Characterizing Temporal SNR Variation in 802.11 Networks , 2008, IEEE Transactions on Vehicular Technology.

[6]  Saleem A. Kassam,et al.  Finite-state Markov model for Rayleigh fading channels , 1999, IEEE Trans. Commun..

[7]  P. Krishnamurthy,et al.  Markov modeling of 802.11 channels , 2003, 2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484).

[8]  Mihaela van der Schaar,et al.  Adaptive cross-layer protection strategies for robust scalable video transmission over 802.11 WLANs , 2003, IEEE J. Sel. Areas Commun..