Asynchronous bipolar-equivalent optical CDMA

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Title: Asynchronous bipolar-equivalent optical CDMA
Author: Dillon, Keith James
Degree: Master of Science thesis
Abstract: We analyze the use of the bipolar-equivalent coding method in a incoherent fiber optic time-encoded CDMA communication system in an attempt to emulate the behavior of a coherent bipolar system. Specifically, we consider two possible asynchronous versions of the system which we refer to as appended and interleaved. We then describe a unified theoretical analysis for these systems based on the average interference parameter and the signal-to-noise ratio. We then consider the performance of the appended and interleaved systems and compare them to the performance of similar bipolar systems using length-127 m-sequences and Gold codes. We find that interleaving performs best of the methods considered--performance is very similar to the bipolar system we were trying to emulate, except for a factor of two increase in bandwidth requirement.
Citation: Dillon, Keith James. (1997) "Asynchronous bipolar-equivalent optical CDMA." Masters Thesis, Rice University.
Date: 1997

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