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Capacity of coherence-multiplexed CDMA networks

Pendock, G.J. and Sampson, David (1997) Capacity of coherence-multiplexed CDMA networks Optics Communications, 143 (1-3). pp. 109-117.

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Abstract

We determine the capacity and numbers of users that can be supported by CDMA networks that use coherence multiplexing. The analysis takes into account reduced optical beat noise due to differential detection of the decoder outputs. The analysis also includes the effect of fibre dispersion and shows that there is an optimum source line width for a given link length and user bit rate. We confirm that the capacity is severely restricted by optical beat noise. However, our calculations show that performances achievable may be adequate for certain local area and access network type applications. For example, at 40 Mb/s per user a maximum of 50 users can be supported over 12 km. We compare our calculations with the measured performance of our recent network demonstration and find good agreement.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Pendock, G.J.
Sampson, Davidd.sampson@surrey.ac.uk
Date : 1997
DOI : 10.1016/S0030-4018(97)00340-4
Uncontrolled Keywords : Code division multiaccess, Optical fibre communication, Optical interferometry, Optical noise, Spontaneous emission, Calculations, Fiber optics, Interferometry, Optical links, Code division multiaccess, Optical noise, Optical communication
Depositing User : Maria Rodriguez-Marquez
Date Deposited : 12 Jun 2018 10:36
Last Modified : 06 Jul 2019 05:25
URI: http://epubs.surrey.ac.uk/id/eprint/846952

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