| Texto completo | |
| Autor(es): |
Número total de Autores: 3
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| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Sao Paulo - Brazil
[2] Univ Estadual Campinas, Inst Math, BR-13484350 Sao Paulo - Brazil
[3] AT&T Shannon Lab, Florham Pk, NJ 07932 - USA
Número total de Afiliações: 3
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| Tipo de documento: | Artigo Científico |
| Fonte: | IEEE TRANSACTIONS ON INFORMATION THEORY; v. 59, n. 10, p. 6655-6663, OCT 2013. |
| Citações Web of Science: | 2 |
| Resumo | |
A new class of spherical codes is constructed by selecting a finite subset of flat tori from a foliation of the unit sphere S2L-1 subset of R-2L and designing a structured codebook on each torus layer. The resulting spherical code can be the image of a lattice restricted to a specific box in R-L in each layer. Group structure and homogeneity, useful for efficient storage and decoding, are inherited from the underlying lattice codebook. A systematic method for constructing such codes are presented as well some examples of constructions. Upper and lower bounds on the performance, the asymptotic packing density and a method for decoding are derived. (AU) | |
| Processo FAPESP: | 07/56052-8 - Teoria da informação e códigos |
| Beneficiário: | Sueli Irene Rodrigues Costa |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |