• Acta Optica Sinica
  • Vol. 24, Issue 2, 225 (2004)
[in Chinese]1、*, [in Chinese]1、2, [in Chinese]1, and [in Chinese]2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Research of Algebraic Congruent Codes Used in TwoDimensional Code Division Multiaddress System[J]. Acta Optica Sinica, 2004, 24(2): 225 Copy Citation Text show less

    Abstract

    After summarizing the application of linear, quadratic and hyperbolic operators in CDMA system, a generalized algebraic congruent code is given out by its construction formula in three different categories, which are frequency-hop (FH), time-spread (TS) and FH-TS codes. A novel two-dimensional optical CDMA system is given out, in which different categories of codes are used to provide different types of service. Such a OCDMA system is very fit for the case that a small part of services are with high bit rate or high quality of service, while great amount of services are common one. In order to prove the possibility of such a hybrid system, the cross-correlation constants between those three codes are given firstly, the probabilities to attend those cross-correlation values are calculated secondly, system's BER performances under several different types of interferences are provided at last. Numerical analysis and discussion is also given.
    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Research of Algebraic Congruent Codes Used in TwoDimensional Code Division Multiaddress System[J]. Acta Optica Sinica, 2004, 24(2): 225
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