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Priority-based reservation protocol for variable-length messages in a WDM-based optical subscriber network  

Lee Jae hwoon (동국대학교 정보산업대학 정보통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.4B, 2005 , pp. 153-161 More about this Journal
Abstract
In a multi-channel network based of wavelength division multiplexing (WDM) technology, an efficient protocol is needed in order for the transmitter and receiver to be tuned to the same wavelength during message transmission time. This paper proposes a priority-based reservation protocol that can efficiently support variable-length messages that require different QoS requirements. In this proposed protocol, high-priority nodes can reserve the data channel before low-priority nodes. However, once a node reserves a data channel successfully, it can persistently use the reserved channel till message transmission is finished regardless of the priority of the node. Moreover, the protocol can operate independently of the number of nodes, and any new node can join the network anytime without requiring network re-initialization. The protocol is analyzed with a finite population model and the throughput-delay characteristics are investigated as performance measures.
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