A mini-bandwidth guaranteed and differentiated service supporting bandwidth allocation algorithm for Multimedia Group Communication

Authors:
Qinghua Zheng;Yiqin Yu
Affiliations:
Department of Computer Science, Xi'an Jiao Tong University, Xi'an, Shaanxi 710049, PR China;Department of Computer Science, Xi'an Jiao Tong University, Xi'an, Shaanxi 710049, PR China
Venue:
Computer Communications
Year:
2007

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Abstract

We consider in this paper the issue of bandwidth allocation in real-time multimedia communication and propose a novel algorithm for Multimedia Group Communication (MGC). The proposed algorithm not only guarantees each media stream's basic bandwidth, but also provides differentiated service according to users' different priorities. Moreover, it allows users to control the bandwidth of each video stream independently under various quality of service requirements and resource constraints. We evaluate the performance of the proposed scheme through both simulation experiment and practical application. Our results show that our scheme is more efficient, flexible and faster than existing techniques including CBQ and WFQ in supporting multimedia group communications.