A novel cross layer design approach for video transmission over wireless ad hoc networks

Author

Wu, Zheng ; Wong, Wai-Choong ; Wu, Jiankang

Author_Institution

Sch. of Inf. Sci. & Eng., Grad. Univ. of Chinese Acad. of Sci., Beijing, China

fYear

2009

fDate

10-11 Oct. 2009

Firstpage

41

Lastpage

48

Abstract

Video transmission over wireless ad hoc networks is very sensitive to temporal dynamics of the wireless channel. In order to achieve good end to end performance, it is necessary for upper layers to quickly adapt to the variations of the wireless links. Based on this motivation, we propose a novel cross layer design (CLD) which employs an adaptive link estimator to ensure reliable transmissions. The link-quality estimation scheme can provide accurate link quality information for routing decisions and predicts the link characteristics for the next time interval by using a Kalman filter. Through simulations and experiments we demonstrate that the proposed cross layer approach can quickly adapt to the temporal dynamics of the links, accurately predict the link characteristics and improve the robustness of video transmission over mobile ad hoc networks.

Keywords

ad hoc networks; adaptive Kalman filters; radio networks; telecommunication network routing; video communication; wireless channels; Kalman filter; adaptive link estimator; cross layer design; link-quality estimation; mobile ad hoc network; video transmission; wireless ad hoc network; wireless channel; Bandwidth; Cross layer design; Delay; Mobile ad hoc networks; Network topology; Prediction methods; Robustness; Routing; State estimation; Wireless sensor networks; Ad Hoc Networks; Cross Layer Design; Link Quality Estimation; UKF; Video Transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Cyber-Enabled Distributed Computing and Knowledge Discovery, 2009. CyberC '09. International Conference on

Conference_Location

Zhangijajie

Print_ISBN

978-1-4244-5218-7

Electronic_ISBN

978-1-4244-5219-4

Type

conf

DOI

10.1109/CYBERC.2009.5342211

Filename

5342211