Design of TCH-type sequences for communications

Almeida, Alexandre M. C. Passos de

Utilize este identificador para referenciar este registo: http://hdl.handle.net/10071/5889

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Campo DC	Valor	Idioma
dc.contributor.advisor	Pedro Joaquim Amaro Sebastião	-
dc.contributor.advisor	Rui Miguel Henriques Dias Morgado Dinis	-
dc.contributor.author	Almeida, Alexandre M. C. Passos de	-
dc.date.accessioned	2013-10-28T16:52:20Z	-
dc.date.available	2013-10-28T16:52:20Z	-
dc.date.issued	2012	-
dc.date.submitted	2012-08	por
dc.identifier.citation	Almeida, A. M. C. P. (2012). Design of TCH-type sequences for communications [Tese de doutoramento, Iscte - Instituto Universitário de Lisboa]. Repositório do Iscte. http://hdl.handle.net/10071/5889	por
dc.identifier.isbn	978-989-732-213-6	-
dc.identifier.uri	http://hdl.handle.net/10071/5889	-
dc.description.abstract	This thesis deals with the design of a class of cyclic codes inspired by TCH codewords. Since TCH codes are linked to finite fields the fundamental concepts and facts about abstract algebra, namely group theory and number theory, constitute the first part of the thesis. By exploring group geometric properties and identifying an equivalence between some operations on codes and the symmetries of the dihedral group we were able to simplify the generation of codewords thus saving on the necessary number of computations. Moreover, we also presented an algebraic method to obtain binary generalized TCH codewords of length N = 2k, k = 1,2, . . . , 16. By exploring Zech logarithm’s properties as well as a group theoretic isomorphism we developed a method that is both faster and less complex than what was proposed before. In addition, it is valid for all relevant cases relating the codeword length N and not only those resulting from N = pi	por
dc.language.iso	eng	por
dc.rights	openAccess	por
dc.subject	TIC - Tecnologias da informação e comunicação	por
dc.subject	Teoria dos números -- Number theory	por
dc.subject	Sistema de comunicação -- Communication system	por
dc.subject	Teoria dos ciclos -- Cycle theory	por
dc.title	Design of TCH-type sequences for communications	por
dc.type	doctoralThesis	por
dc.identifier.tid	101411391	-
dc.subject.fos	Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática	-
thesis.degree.name	Doutoramento em Ciências e Tecnologias da Informação	-
Aparece nas coleções:	T&D-TD - Teses de doutoramento

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