Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/36932
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Type: Conference paper
Title: An improved scheme of wavelength assignment for parallel FFT communication pattern on a class of regular optical networks
Author: Chen, Y.
Shen, H.
Citation: Network and parallel computing IFIP international conference, NPC 2005, Beijing, China, November 30 - December 3, 2005 : proceedings / Hai Jin, Daniel Reed, Wenbin Jiang (eds.), pp. 189-196
Publisher: Springer
Publisher Place: Berlin
Issue Date: 2005
Series/Report no.: Lecture notes in computer science: 3779
ISBN: 354029810X
9783540298106
ISSN: 0302-9743
1611-3349
Conference Name: NPC 2005 (2005 : Beijing, China)
Statement of
Responsibility: 
Yawen Chen and Hong Shen
Abstract: Routing and wavelength assignment (RWA) is a central issue to increase efficiency and reduce cost in Wavelength Division Multiplexing (WDM) optical networks. In this paper, we propose an improved scheme of wavelength assignment of parallel FFT communication pattern on a class of regular optical networks. With our new scheme, the numbers of wavelengths required to realize parallel FFT communication pattern with 2n nodes on WDM linear arrays, rings, 2-D meshes and 2-D tori are 2n–2+1 , 2n–3+1 , 2max(k,n–k)–2+1 and 2max(k,n–k)–3+1 respectively, which are about one-third less for linear arrays and meshes, and a half less for rings and tori, than the known results. Our results have a clear significance for applications because FFT represents a common communication pattern shared by a large class of scientific and engineering problems and WDM optical networks as a promising technology in networking has an increasing popularity.
RMID: 0020065714
DOI: 10.1007/11577188_25
Published version: http://www.springerlink.com/content/f03579225694h00g/
Appears in Collections:Computer Science publications

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