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Phongnawin Benprom,Chairat Pinthong,Somyot Kaitwanidvilai,Issarachai Ngamroo,Surachet Kanprachar 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
Genetic algorithm (GA) has been shown to be an alternative for achieving suitable subcarriers in subcarrier multiplexing (SCM) on multimode fiber. Because of the relatively-flat frequency response at high frequency range of the multimode fiber, the suitable subcarriers can be determined by applying GA to many divided frequency ranges simultaneously; that is, Parallel GA. In this paper, parallel GA is adopted for searching suitable subcarriers in SCM on multimode fiber. Thirty suitable subcarriers, which are not located at any nulls in the frequency response of multimode fiber, are determined. These subcarriers are then used for transmitting many subcarrier signals through the high frequency bands of multimode fiber resulting in a total data rate of 15 times larger than the data rate obtaining from the 3-㏈ intermodal bandwidth.