Construction of Frequency-Hopping/Time-Spreading Two-Dimensional Optical Codes Using Quadratic and Cubic Congruence Code

Chongfu ZHANG; Kun QIU; Yu XIANG; Hua XIAO

doi:10.1587/transcom.E94.B.1883

Regular Section

Construction of Frequency-Hopping/Time-Spreading Two-Dimensional Optical Codes Using Quadratic and Cubic Congruence Code

Chongfu ZHANG, Kun QIU, Yu XIANG, Hua XIAO

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Keywords: quadratic congruence code (QCC), cubic congruence code (CCC), optical orthogonal codes (OOCs), optical code division multiple access (OCDMA)

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2011 Volume E94.B Issue 7 Pages 1883-1891

DOI https://doi.org/10.1587/transcom.E94.B.1883

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Abstract

Quadratic congruence code (QCC)-based frequency-hopping and time-spreading (FH/TS) optical orthogonal codes (OOCs), and the corresponding expanded cardinality were recently studied to improve data throughput and code capacity. In this paper, we propose a new FH/TS two-dimensional (2-D) code using the QCC and the cubic congruence code (CCC), named as the QCC/CCC 2-D code. Additionally the expanded CCC-based 2D codes are also considered. In contrast to the conventional QCC-based 1-D and QCC-based FH/TS 2-D optical codes, our analysis indicates that the code capacity of the CCC-based 1-D and CCC-based FH/TS 2-D codes can be improved with the same code weight and length, respectively.

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