Opportunistic and playback-sensitive scheduling for video streaming

• Main Authors: Mohd. Ramli, Huda Adibah, Sandrasegaran, Kumbesan
• Format: Article
• Language: English
• Published: Academy & Industry Research Collaboration Center (AIRCC) 2014
• Subjects: TK5101 Telecommunication. Including telegraphy, radio, radar, television
• Online Access: http://irep.iium.edu.my/39472/1/6114ijwmn01.pdf; http://irep.iium.edu.my/39472/; http://airccse.org/journal/jwmn/6114ijwmn01.pdf

Given the strict Quality of Service (QoS) requirements of video streaming, this paper proposes a novel solution for simultaneous streaming of multiple video sessions over a mobile cellular system. The proposed solution combines a buffer management strategy with a packet scheduling algorithm. The buffer management strategy selectively discards packets of a user from base station buffer whereas the packet scheduling algorithm schedules packets of a user according to its instantaneous channel quality, average throughput and playback buffer information. Simulation results demonstrate that the proposed solution is effective in providing a continuous video playback with good perceptual quality for more users. If at least a good perceptual quality is to be satisfied for all users (QoS constraint of video streaming), then the proposed solution improves the system capacity by 40% over a conventional packet scheduling algorithm.