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Comparative Analysis of Techniques for Detecting Faults in Optical Multistage Interconnection Networks

This paper presents the various crosstalk avoidance algorithms in optical multistage interconnection network. This network faces mainly two problems. One is path dependent loss and the second one is crosstalk. The major problem introduced by optical multistage interconnection networks is crosstalk which is caused by the coupling of two signals within same switching element. This crosstalk decreases the performance of the network. So to avoid crosstalk, many approaches have been proposed such as time domain and space domain approaches. To find out the conflictions easily or in less time, messages should be partitioned into several groups to send to the network. In this paper, various algorithms such as Window method, Improved Window method and Bitwise window method are implemented to avoid crosstalk. Omega networks have unique path from each input to each output which causes crosstalk. So we apply these methods on Omega network.