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http://dx.doi.org/10.7236/JIWIT.2011.11.4.105

Adaptive Load Balancing Scheme for Real-Time Video Stream Transmission in Mobile Environment  

Kim, Jin-Hwan (한성대학교 멀티미디어공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.4, 2011 , pp. 105-112 More about this Journal
Abstract
We propose an adaptive load balancing scheme to transport real-time video streams efficiently in this paper. The playback buffer level of a video requesting client is high or low temporarily in mobile environment. This scheme attempts to allocate more network bandwidth to serve a video request with the lower buffer level preferentially. In this scheme, the amount of network bandwidth is dynamically allocated to the requesting clients according to their playback buffer levels in a distributed mobile system. In order to improve the quality of service and real-time performance of individual video playback, the proposed load balancing scheme tries to maximize the number of frames that are transported successfully to the client prior to their playback times. Fair services can also be provided to all the concurrent clients by making their playback situation more adaptive. The performance of this load balancing scheme is compared with that of other static load balancing scheme through extensive simulation experiments, resulting in the higher ratio of frames transmitted successfully within given deadlines.
Keywords
adaptive; load balancing; buffer level; real-time; network bandwidth;
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