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Title: A state space approach to periodic convolutional codes
Author: Pereira, Ricardo
Rocha, Paula
Napp, Diego
Keywords: Periodically time-varying codes
Input-state- output representations
Convolutional codes
Issue Date: 2017
Publisher: Springer - Lecture Notes in Computer Science
Abstract: In this paper we study periodically time-varying convolutional codes by means of input-state-output representations. Using these representations we investigate under which conditions a given time-invariant convolutional code can be transformed into an equivalent periodic time-varying one. The relation between these two classes of convolutional codes is studied for period 2. We illustrate the ideas presented in this paper by constructing a periodic time-varying convolutional code from a time-invariant one. The resulting periodic code has larger free distance than any time-invariant convolutional code with equivalent parameters.
Peer review: yes
DOI: 10.1007/978-3-319-66278-7_20
ISSN: 0302-9743
Appears in Collections:CIDMA - Comunicações
SCG - Comunicações

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