8 January 1996 Optical fiber-based CDMA networks
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In this communication we consider the use of an optical fiber based fixed infrastructure for code division multiple access (CDMA) mobile networks. In such a scenario, the base stations are linked to the central station through optical fiber using subcarrier multiplexing (SCM) technology. One of the major problems associated with optical SCM is the nonlinearity of the laser diodes (LD). In this communication we model the LD as a memoryless nonlinearity and evaluate the effect of the nonlinearity on the SCM transmission CDMA signals. We find that the behavior departs significantly from what happens in FDMA and depends critically on the nonlinearity of the LD being a compressing or an expanding one. In the former case significant performance degradation may occur whereas for the latter the degradation is usually not dramatic.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Atilio M. S. Gameiro, Atilio M. S. Gameiro, } "Optical fiber-based CDMA networks", Proc. SPIE 2602, Wireless Technologies and Services for Cellular and Personal Communication Services, (8 January 1996); doi: 10.1117/12.229443; https://doi.org/10.1117/12.229443

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