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An internally coded TH/OCDMA scheme for fiber optic communication systems and its performance analysis-part II: using frame time hopping code

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2 Author(s)
Karimi, M. ; Electr. Eng. Dept, Sharif Univ. of Technol., Tehran ; Nasiri-Kenari, M.

In part I, a new internally coded time hoping optical code division multiple access (TH/OCDMA) scheme for fiber optic communication systems has been proposed and its multiple access performance has been evaluated using optical orthogonal code (OOC). Due to low cardinality of OOCs with a correlation value of 1, the capability of the proposed scheme could not be utilized effectively for an increasing number of simultaneous users. In this part, we consider applying the internally coded technique introduced in part one to the frame time hopping/OCDMA scheme. We evaluate the multiple access performance of the system for the three detectors introduced in part I. Our results demonstrate the capability of the internally coded TH/CDMA scheme to substantially increase the maximum number of simultaneous users when using FTH codes instead of OOCs.

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Communications, IEEE Transactions on  (Volume:57 ,  Issue: 1 )