An analysis of cross avoidance techniques in optical multistage interconnection networks

It is expected that users of telecommunication services such as Internet, Web browsing, and tele-education will increase dramatically. This has greatly increased the demand for high bandwidth and high capacity communication systems. Advances in electro-optic technologies have made optical communication a good networking choice for the increasing demands of high channel bandwidth and low communication latency of high-performance computing and communication applications. Optical Multistage Interconnection Networks (OMINs) are very popular in switching and communication applications and have been used in telecommunications and parallel computing systems. But there are some problems in optical multistage interconnection Networks such as the optical-loss during switching and the crosstalk problem in the optical switches. The major problem called crosstalk is caused by coupling of two signals within a switching element. A lot of work has already been done in designing various algorithms and methods so that good quality solution can be obtained. In this paper, some methods to avoid crosstalk are compared and checked.