발간년도 : [2017]
| 논문정보 |
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| 논문명(한글) |
[Vol.12, No.3] An Elastic Hybrid Multicast Based on Delay through Cross Transfer of BMD |
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| 논문투고자 |
Myeong-Mo Gu, Jong-Chae Shim, Hyun-Chul Baek, Young-Ho Nam |
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| 논문내용 |
Hybrid multicast is composed of IP multicast and application layer multicast based on host for efficient use of bandwidth and expansion of multicast group. Many applications using hybrid multicast use transfer method that sends a packet to the distributed multicast group like a binary tree in order to reduce overlay transfer path. These method reconstructs the overlay transfer paths according to the packet loss and delay time in order to adapt the network condition. However, complexity and end-to-end delay time increase caused by reconstruction of the overlay transfer path. In this paper, we propose an elastic path management method based on delay to quickly adapts to the network state without reconstructing the overlay transfer path in hybrid multicast. In proposed method, we elect a BMD(Bridge Multicast Domain) which is a multicast group located on the cross transfer path within control range for elastic transfer path construct. This method can recover the lost packets through cross transfer between overlay transfer paths using BMD. Also can reduce the recovery time of loss rate and end-to-end delay time through backward transfer without reconstruction of overlay transfer path. Simulation results show that the loss rate and the end-to-end delay time are recovered more quickly than the traditional method. |
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