Link-Aware Reconfigurable Point-to-Point Video Streaming for Mobile Devices
- Authors
- Lee, Suk Kyu; Yoo, Seungho; Jung, Jongtack; Kim, Hwangnam; Ryoo, Jihoon
- Issue Date
- 8월-2015
- Publisher
- ASSOC COMPUTING MACHINERY
- Keywords
- Experimentation; Measurement; Performance; Link-state feedback; mobile multimedia system; reconfigurable video coding
- Citation
- ACM TRANSACTIONS ON MULTIMEDIA COMPUTING COMMUNICATIONS AND APPLICATIONS, v.12, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACM TRANSACTIONS ON MULTIMEDIA COMPUTING COMMUNICATIONS AND APPLICATIONS
- Volume
- 12
- Number
- 1
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92913
- DOI
- 10.1145/2771438
- ISSN
- 1551-6857
- Abstract
- Even though people of all social standings use current mobile devices in the wide spectrum of purpose from entertainment tools to communication means, some issues with real-time video streaming in hostile wireless environment still exist. In this article, we introduce CoSA, a link-aware real-time video streaming system for mobile devices. The proposed system utilizes a 3D camera to distinguish the region of importance (ROI) and non-ROI region within the video frame. Based on the link-state feedback from the receiver, the proposed system allocates a higher bandwidth for the region that is classified as ROI and a lower bandwidth for non-ROI in the video stream by reducing the video's bit rate. We implemented CoSA in a real test-bed where the IEEE 802.11 is employed as a medium for wireless networking. Furthermore, we verified the effectiveness of the proposed system by conducting a thorough empirical study. The results indicate that the proposed system enables real-time video streaming while maintaining a consistent visual quality by dynamically reconfiguring video coding parameters according to the link quality.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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