Abstract
In this paper, a novel cross-layer optimization scheme for video streaming in wireless relay networks is proposed. It takes into account of delay constraints at the application (APP) layer, relay node selection at the MAC layer and dynamic fading of wireless channels at the physical (PHY) layer in an integrated mode to improve the quality of video transmission. At the PHY layer, a finite state Markov channels (FSMC) model is used to estimate the channel states and a modified RTS/CTS scheme is proposed to facilitate the path selection at the MAC layer. The impacts of delay constraints and other factors at the APP layer are investigated. At the MAC layer, the source node can choose the proper path to transmit video data while considering video delay requirements and wireless channel states simultaneously. A typical three-node uploading scenario in video surveillance applications is considered as an example for performance evaluation. The experimental results show that the proposed scheme could improve video transmission quality and achieve a near-optimal performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
