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A multicast packet is delivered to multiple users after copying in a multicast node, so the multicast Quality of Service (QoS) is based on the performances of all receivers due to copy mechanism. A favorite multicast service is more important than other multicast services because it has more users than others. Therefore, this paper proposes a copy number based multicast scheduling algorithm in Broadband Banyan Network (BBN) to support better QoS to favorite multicast services. BBN is an extension of Banyan switching network to support a copy mechanism in switching network. When a multicast packet contends with other packets because of limited output ports in a BBN, the BBN selects multicast packets with the copy number of multicast packet. By doing so, the proposed scheduling algorithm supports better QoS to more used multicast service.
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on (Volume:01 )
Date of Conference: 15-18 Feb. 2009