Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Highly accurate closed-form approximations to the sum of alpha-mu variates and applications

Texto completo
Autor(es):
Benevides da Costa, Daniel [1] ; Daoud Yacoub, Michel [2] ; Silveira Santos Filho, Jose Candido [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Sch Elect & Comp Engn, Dept Commun, BR-13083852 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Elect & Comp Engn, Dept Commun, Wireless Technol Lab WissTek, BR-13083852 Campinas, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS; v. 7, n. 9, p. 3301-3306, SEP 2008.
Citações Web of Science: 23
Resumo

Sums of fading envelopes occur in several wireless communications applications, such as equal-gain combining, signal detection, outage probability, intersymbol interference, etc. The exact evaluation of the sum statistics is known to be very intricate. One of the purposes of this Letter is to provide highly accurate closed-form approximations to the probability density function and cumulative distribution function of the sum of independent identically distributed (i.i.d.) alpha-mu (generalized gamma) variates. Based on and as an extension of such an approach, simple precise approximations for the performance metrics of equal-gain combining and maximal-ratio combining receivers operating on i.i.d. alpha-mu fading channels are proposed. Samples examples are given to illustrate that, for practical purposes, exact and approximate solutions are indistinguishable from each other. (AU)

Processo FAPESP: 05/59259-7 - Estatística de ordem superior para ambientes generalizados do canal sem fio
Beneficiário:Daniel Benevides da Costa
Linha de fomento: Bolsas no Brasil - Doutorado