| Texto completo | |
| Autor(es): |
Garcia, Fernando Dario Almeida
;
Parente, Francisco Raimundo Albuquerque
;
Calmon, Flavio du Pin
;
Santos Filho, Jose Candido Silveira
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS; v. 24, n. 1, p. 15-pg., 2025-01-01. |
| Resumo | |
The aim of this paper is threefold: 1) we introduce a unified statistical characterization for the instantaneous power of a plethora of Gaussian-based fading models; 2) we propose a general framework for the power sum of either independent and identically distributed (i.i.d.) or independent and non-identically distributed (i.non-i.d.) fading distributions; and 3) we provide a unified performance assessment of wireless communications systems in the presence of small-scale fading channels. To accomplish these three goals, we first show that the instantaneous power of a broad Gaussian class of fading models is governed by a mixture of gamma (MG) distribution. Later, we propose novel, tractable, and efficient solutions for the exact sum statistics of i.i.d. and i.non-i.d. MG variates. Lastly, we show that two key performance indicators-namely, the average bit-error rate and the outage probability-of a maximal-ratio combining (MRC) diversity receiver subject to a wide variety of Gaussian-based fading channels can be expressed, in a unified fashion, as a weighted sum of the performance indicators of a single-branch wireless system subject to independent Nakagami-m fading channels. Extensive numerical simulations reveal the outstanding improvement in computational efficiency and mathematical tractability of our derived expressions when compared with state-of-the-art solutions. (AU) | |
| Processo FAPESP: | 21/03923-9 - Um arcabouço aprimorado para somas de variáveis aleatórias de classe Gaussiana com aplicações em sistemas de radar e comunicação |
| Beneficiário: | Fernando Darío Almeida García |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 18/25009-4 - Caracterização assintótica de arranjos de enlaces em sistemas sem fio de gerações avançadas |
| Beneficiário: | Francisco Raimundo Albuquerque Parente |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |