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一种新的光交换技术——光标记交换技术 总被引:1,自引:0,他引:1
介绍了光标记交换这种光子交换新技术,叙述了光标记交换技术的优点,总结了目前提出的几种光标记交换方法,指出了各种方法的优缺点。 相似文献
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光标记交换是一种光子交换新技术,能有效地克服光子交换中的电子瓶颈。该技术的关键是光标记的产生和提取,因此提出了一种利用高强度光脉冲来产生和提取光标记的新方法,并叙述了利用高强度包头光脉冲来产生光标记和利用非线性光学介质的非线性效应来实现光标记提取的原理。 相似文献
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光标记交换是一种新的光字交换新技术,本提出一种基于光标记交换技术的全光网络的新的设计方案,叙述了这种方案的设计原理和该网络的功能。 相似文献
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Rong Xu Qian Gong Peida Ye 《Lightwave Technology, Journal of》2001,19(5):596-602
This paper presents a new technology for constructing IP over photonic systems. An IP with multiprotocol label switching (MPLS) over wavelength division multiplexing (WDM)-based broad-band IP network architecture and protocol is proposed and analyzed in this paper, which supports variable-length IP-like optical packet label switching and optical virtual path routing. This system tries to merge into one layer the functionalities of the wavelength switching, SONET mux/demux, and IP routing, and is sometimes known as the concept of optical MPLS. The label banding, forwarding/switching process, and node architecture of the proposed network are discussed and studied. A unique as well as important function of a lambda/label edge router (LER) is a flow assembly device that can encompass MPLS' forward equivalence classes, label stacking, and label switching path aggregation function. At the same time, a particular function of the core label switching router is wavelength merging. A fiber delay line is used to delay the data stream in order to process the label information and resolve contention. Transmission bit error rate measurements of the baseband data stream and back-to-back is also demonstrated to show its feasibility 相似文献
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对全光交换的优点进行了阐述,介绍了全光标签交换的节点结构,探讨了标签交换中采用的关键技术,如光标签的提取、光逐跳分配器和可调光波长转换器等。随着这些光逻辑器件的发展,全光标签交换必定是未来光交换技术的发展方向。 相似文献
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OCDMA技术是新一代的全光技术,可以广泛用于光信道多路复用、光网络多址接入、光码标记交换核心网、光信号安全传输、光纤传感以及光栽无线系统等.概述了光码分多址(OCDMA)技术的研究现状、主要关键技术,并展望其发展趋势和应用前景. 相似文献
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《Communications Magazine, IEEE》2004,42(5):S16-S22
This article presents an optical label switching technology geared toward the next-generation Internet, and highlights its promising potential to accommodate packet, burst, and circuit traffic in a unified optical layer. In particular, we provide detailed discussions on an architecture design for a high capacity optical label switching router by considering enabling optical technologies. In pursuit of an effective contention resolution scheme, we investigate an end-to-end solution by incorporating a traffic shaping function at the network edge with wavelength, time, and space dimensions contention resolution in the core network. Experimental results indicate that this scheme is capable of achieving very low packet loss rates. Furthermore, due to its natural compatibility with GMPLS architecture, optical label switching has great potential for a seamless upgrade of today's optical networks toward the next generation Internet. 相似文献
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先进的OBS(optical burst switching)技术和MPLS的强大控制能力结合产生了一种灵活紧凑的IP/DWDM集成模型LOBS.(labeled optical burst switching).它充分发挥了电子处理的高智能和光子交换的大容量优势,是未来数据网络的理想光交换方案.文中从OBS技术的优越性开始,分析了LOBS实现的网络结构和控制协议,探讨了LOBS流量工程和网络生存性. 相似文献