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Proceedings Paper

Control-channel-based modular switching technique for packet transport over DWDM networks
Author(s): Salim Tariq; Muhammad K. Dhodhi; Ahmed E. Kamal; Kassem A. Saleh
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Paper Abstract

In this paper we present a control channel-based modular switching technique for packet transport over next-generation high-speed dense- wavelength division multiplexed (DWDM) networks. The proposed technique reduce electronic processing bottleneck in DWDM networks by sending routing information on a dedicated control channel in the form of pilot control packets. The pilot control packets are processed electronically by a control processor at each intermediate node. Processing of pilot control packets ensures that the data packets propagate from source to destination in photonic form (that is, without any processing by intermediate nodes). In the proposed switch, different modules perform different functions. The modular nature of the proposed switch enables that each module can be implemented in any available technology. Thus, with the technology improvements, individual modules can be upgraded as compared to replacing the whole switch. The performance evaluations of the proposed technique show that 3x reduction in processing requirements can be achieved for a 100 channel DWDM-based long haul network. This reduction in processing requirements translates into 2x reduction in hardware cost. Furthermore, the proposed technique provides a large saving in terms of electrical-to-optical and optical-to-electrical converters cost per node. This saving in processing reduction can be leveraged to provide more bandwidth to the services.

Paper Details

Date Published: 5 October 2000
PDF: 11 pages
Proc. SPIE 4213, Terabit Optical Networking: Architecture, Control, and Management Issues, (5 October 2000); doi: 10.1117/12.402554
Show Author Affiliations
Salim Tariq, GIK Institute of Engineering Science and Technology (Canada)
Muhammad K. Dhodhi, Lucent Technologies (United States)
Ahmed E. Kamal, Iowa State Univ. (United States)
Kassem A. Saleh, American Univ. of Sharja (Kuwait)


Published in SPIE Proceedings Vol. 4213:
Terabit Optical Networking: Architecture, Control, and Management Issues
John M. Senior; Sudhir Dixit; Chunming Qiao, Editor(s)

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