Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/57522
Type: Artigo
Title: Curves on Flat Tori and Analog Source-Channel Codes
Author: Campello, A.
Costa, S.I.R.
Torezzan, C.
Abstract: In this paper, we consider the problem of transmitting a continuous alphabet discrete-time source over an additive white Gaussian noise channel in the bandwidth expansion case. We propose a constructive scheme based on a set of curves on the surface of a 2N-dimensional sphere. Our approach shows that the design of good codes for this communication problem relies on geometrical properties of spherical codes and projections of N-dimensional rectangular lattices. Theoretical comparisons with some previous works in terms of the mean squared error as a function of the channel SNR, as well as simulations, are provided.
In this paper, we consider the problem of transmitting a continuous alphabet discrete-time source over an additive white Gaussian noise channel in the bandwidth expansion case. We propose a constructive scheme based on a set of curves on the surface of a 2N-dimensional sphere. Our approach shows that the design of good codes for this communication problem relies on geometrical properties of spherical codes and projections of N-dimensional rectangular lattices. Theoretical comparisons with some previous works in terms of the mean squared error as a function of the channel SNR, as well as simulations, are provided.
Subject: Teoria dos reticulados
Curvas
Códigos de controle de erros (Teoria da informação)
Country: Estados Unidos
Editor: Institute of Electrical and Electronics Engineers
Citation: Ieee Transactions On Information Theory. Ieee-inst Electrical Electronics Engineers Inc, v. 59, n. 10, n. 6646, n. 6654, 2013.
Rights: fechado
Identifier DOI: 10.1109/TIT.2013.2269135
Address: https://ieeexplore.ieee.org/document/6541969
Date Issue: 2013
Appears in Collections:IMECC - Artigos e Outros Documentos
FCA - Artigos e Outros Documentos

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