Priority-aware transfer of svc encoded video over MIMO communications system

Authors:
Daniela Radakovic;Rashid Ansari;Yingwei Yao;Ramakrishna Yellapantula
Affiliations:
Dept. of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL;Dept. of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL;Dept. of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL;Dept. of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL
Venue:
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Year:
2009

Citing 4
Cited 2

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Abstract

A cross-layer method is proposed for optimizing, controlling and improving the quality of video transmission over wireless networks using scalable video coding (SVC) and multiple-input multiple-output (MIMO) transmission with channel state feedback (CSI). Multiple video sub-streams are created by a content-based partitioning and sorting of the enhancement layers produced with the SVC extension of H.264/AVC. Unlike in existing methods, the prioritized bitstreams are transmitted by actively performing power adjustment and antenna selection using a bitstream prioritization matrix to modify the power allocation procedure of a recently proposed MIMO scheme. The power allocation strategy results in different bit error rate (BER) experienced by the bit-streams. Simulation results show an improved performance compared with power allocation that equalizes BER over the different channels.