Title :
Frame corruption estimation from route messages for video coding over mobile ad hoc networks
Author :
Liao, Yiting ; Gibson, Jerry D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, CA, USA
Abstract :
Recently we proposed a cross-layer design to support video communication over error-prone mobile ad-hoc networks. The idea is to utilize routing messages and network parameters to estimate the corrupted frames, and to guide the reference frame selection at the video encoder to mitigate error propagation. In this paper, we focus on the frame corruption estimation method used in the design. We build a packet loss probability model from the MAC layer mechanism and network parameters; then we utilize the model along with the routing messages received at the network layer to estimate the possible corrupted frames. We study our estimation method under different network settings and demonstrate its effectiveness and robustness. We further show the video quality gains achieved by adapting reference frame selection to the estimated results.
Keywords :
access protocols; data compression; mobile ad hoc networks; probability; video coding; video communication; MAC layer mechanism; cross-layer design; error propagation; error-prone mobile ad-hoc network; frame corruption estimation method; network parameter estimation; packet loss probability model; reference frame selection; route message; video coding; video communication; video encoder; Ad hoc networks; Delay; Encoding; Estimation; Propagation losses; Routing; Video coding;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-9722-5
DOI :
10.1109/ACSSC.2010.5757595