Transmission Distortion-optimized Unequal Loss Protection for video transmission over packet erasure channels

Author

Zhang, Yongfei ; Qin, Shiyin ; He, Zhihai

Author_Institution

School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

fYear

2011

fDate

11-15 July 2011

Firstpage

1

Lastpage

6

Abstract

In this paper, we study the problem of Transmission Distortion-optimized Unequal Loss Protection (TD-ULP) under rate constraints for non-scalable video transmission over packet erasure channels. Based on a packet-level transmission distortion modeling scheme, we estimate the amount of contribution of each video packet to the reconstructed video quality, which defines the priority level of each packet. Unequal amounts of protections are then allocated to different video packets according to their priority levels as well as the dynamic channel conditions. The optimal ULP resource allocation is formulated as a constrained nonlinear optimization problem. An evolutionary algorithm based on Particle Swarm Optimization (PSO) is developed to obtain the optimal resource allocation. Our extensive experimental results demonstrate the effectiveness of the proposed TD-ULP scheme, which outperforms existing methods by up to 2dB gain in reconstructed video quality. 1*

Keywords

Particle Swarm Optimization (PSO); Unequal Loss Protection (ULP); resource allocation; transmission distortion model;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo (ICME), 2011 IEEE International Conference on

Conference_Location

Barcelona, Spain

ISSN

1945-7871

Print_ISBN

978-1-61284-348-3

Electronic_ISBN

1945-7871

Type

conf

DOI

10.1109/ICME.2011.6011931

Filename

6011931