QoS Control for Wireless Video Communication - A Survey

Volume 9 Issue 1 September - November 2018

Research Paper

QoS Control for Wireless Video Communication - A Survey

K. Maheswari*, N. Padmaja**

* Research Scholar, Department of Electronics and Communication Engineering, JNTUA, Anantapur, Andhra Pradesh, India.

** Professor, Sree Vidyanikethan Engineering College (Autonomous), Tirupati, Andhra Pradesh, India.

Maheswari,K., & Padmaja,N. (2018). QoS Control For Wireless Video Communication - A Survey . i-manager’s Journal on Electronics Engineering , 9(1), 27-33. https://doi.org/10.26634/jele.9.1.14810

Abstract

4G mobile phones are able to perform video coding and streaming over wireless networks, but are often constrained by the energy supply and end-to-end delay requirements. Video transmission via wireless channels with good Quality of Service (QoS) is still strenuous problem as it is a difficult task to deliver video content through limited bandwidth and error prone networks. In a real time wireless video communication system, the capture-to-display delay would significantly affect the overall video reception quality. To study, control, and optimize the quality of service parameters in the recent video transmission schemes, the DRDO for the wireless video communication system is extented and a novel control algorithm is proposed by investigating the allocation of capture-to-display delay to different delay components. Causes of end-to-end delay are identified and quantified, where the average end-to-end distortion under the transmission rate and end-to-end delay are considered by a joint selection of both source coding and channel coding parameters. To guarantee the Quality of Service (QoS), different service levels are specified for various stream of traffic in terms of delay, distortion, power, throughput, rate, and packet loss. This survey highlights, the tradeoff between various QoS parameters in the area of wireless video communication systems and quality of the reproduced picture.