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arXiv 0911.0143cs.ITmath.IT
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最优二维的光正交码的大类

Large Families of Optimal Two-Dimensional Optical Orthogonal Codes

Reza Omrani, Gagan Garg, P. Vijay Kumar, Petros Elia, Pankaj Bhambhani

摘要:

九个新的2-D OOC在这里,所有共享的共同特征的代码大小,这是大得多的时隙的数量比以前出现在文献中的建设。这些结构中的每一个都是最优的或渐近最优的,无论是原始的约翰逊界或本文中介绍的约翰逊界的非二进制版本。前5个代码使用有限域上的多项式构造-第一个构造是最优的,而其余4个是渐进最优的。接下来的两个代码是使用有理函数代替多项式构造的,并且它们是渐近最优的。最后两个代码,也是渐近最优的,是由两个以上的代码组成的一个恒定重量的二进制码。还提出,是一个三维的OOC,利用偏振维度。最后,相位编码光CDMA被认为是和构造两个有效的代码提供。

英文摘要:

Nine new 2-D OOCs are presented here, all sharing the common feature of a code size that is much larger in relation to the number of time slots than those of constructions appearing previously in the literature. Each of these constructions is either optimal or asymptotically optimal with respect to either the original Johnson bound or else a non-binary version of the Johnson bound introduced in this paper. The first 5 codes are constructed using polynomials over finite fields - the first construction is optimal while the remaining 4 are asymptotically optimal. The next two codes are constructed using rational functions in place of polynomials and these are asymptotically optimal. The last two codes, also asymptotically optimal, are constructed by composing two of the above codes with a constant weight binary code. Also presented, is a three-dimensional OOC that exploits the polarization dimension. Finally, phase-encoded optical CDMA is considered and construction of two efficient codes are provided.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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