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- W2271938369 abstract "Optical orthogonal signature pattern codes (OOSPCs) play an important role in a novel type of optical code-division multiple-access (CDMA) network for 2-dimensional image transmission. There is a one-to-one correspondence between an $(m, n, w, lambda)$-OOSPC and a $(lambda+1)$-$(mn,w,1)$ packing design admitting an automorphism group isomorphic to $mathbb{Z}_mtimes mathbb{Z}_n$. In 2010, Sawa gave the first infinite class of $(m, n, 4, 2)$-OOSPCs by using $S$-cyclic Steiner quadruple systems. In this paper, we use various combinatorial designs such as strictly $mathbb{Z}_mtimes mathbb{Z}_n$-invariant $s$-fan designs, strictly $mathbb{Z}_mtimes mathbb{Z}_n$-invariant $G$-designs and rotational Steiner quadruple systems to present some constructions for $(m, n, 4, 2)$-OOSPCs. As a consequence, our new constructions yield more infinite families of optimal $(m, n, 4, 2)$-OOSPCs. Especially, we shall see that in some cases an optimal $(m, n, 4, 2)$-OOSPC can not achieve the Johnson bound." @default.
- W2271938369 created "2016-06-24" @default.
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- W2271938369 date "2015-11-30" @default.
- W2271938369 modified "2023-10-14" @default.
- W2271938369 title "Combinatorial Constructions of Optimal $(m, n,4,2)$ Optical Orthogonal Signature Pattern Codes" @default.
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- W2271938369 doi "https://doi.org/10.48550/arxiv.1511.09289" @default.
- W2271938369 hasPublicationYear "2015" @default.
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