Sequential QoS Mapping Model for Multi-layerVideo Delivery in 802.11e Wireless Networks

DOI

10.2991/cse.2013.43How to use a DOI?

Keywords

EDCA, Layered video, mapping strategy, analytical model.

Abstract

Multi-layer video transmission over wireless networks poses numerous challenges due to symantec nature of the encoded video and the intrinsic dependency between the video layers, which, if not considered, may cause severe quality degradation. In this paper, we present a new analytical model leveraging cross layer design for distributed video layers mapping that optimizes the QoS of wireless video transmission over IEEE 802.11e EDCA (Enhanced Distributed Channel Access) priority queues. MRC (Multi-Resolution Coding) Layered video, divides video into a base layer and multiple enhancement layers.We aim to improve the perceived video quality, impacted by high channel contention, through mapping individual video layers into EDCA access categories in order to maximize the average number of reconstructed video layers. The proposed technique is based on a dynamic program that takes into account the EDCA parameters and the dependency nature of layered video delivery, leveraging an application-based metric that measures the symantec video quality. Our proposed technique makes use of a channel delay statistical model to estimate the expected useful video layers delivered. The performance of our optimized mapping technique is verified through extensive simulations. The obtained results illustrate significant trade-off between complexity and delivered video quality for canonical mapping schemes.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lamia Romdhani
AU  - Abr Mohamed
PY  - 2013/07
DA  - 2013/07
TI  - Sequential QoS Mapping Model for Multi-layerVideo Delivery in 802.11e Wireless Networks
BT  - Proceedings of the 2nd International Conference on Advances in Computer Science and Engineering (CSE 2013)
PB  - Atlantis Press
SP  - 188
EP  - 192
SN  - 1951-6851
UR  - https://doi.org/10.2991/cse.2013.43
DO  - 10.2991/cse.2013.43
ID  - Romdhani2013/07
ER  -