淡江大學機構典藏:Item 987654321/70280
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    题名: A novel MAC protocol for supporting quality of services over IEEE 802.14 HFC network
    作者: Chen, Char-long;Lee, Wei-tsong
    贡献者: 淡江大學電機工程學系
    日期: 2001-08
    上传时间: 2011-10-23 21:07:43 (UTC+8)
    出版者: IEEE
    摘要: In order to support quality of service (QoS) for real-time data, such as video on demand (VoD), voice over IP (VoIP) and other multimedia services, HFC (hybrid fiber coax) networks must provide an effective priority scheme. We study the IEEE 802.14 specification and discover that preemptive is insufficient. Therefore, we propose a new scheme to support QoS in HFC networks. The proposed scheme has three priority queues for constant bit rate (CBR), variable bit rate (VBR) and available bit rate (ABR) traffic and different competitive ratios are assigned to priority queues, respectively. As a result, the high priority queue has higher probability to compete with the contention slot (CS). A novel ideal microslot is also proposed to support CBR traffic. According to the microslot, CBR traffic can continuously transmit data without requesting the upstream bandwidth again. Through the proposed scheme, we offer guaranteed QoS for high priority traffic in HFC networks.
    關聯: TENCON 2001. Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology, pp.18~22(vol.1)
    DOI: 10.1109/TENCON.2001.949543
    显示于类别:[電機工程學系暨研究所] 會議論文

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