Symbol-by-symbol exp-log transceiver design for SIMO FSO communication systems in correlated lognormal channels.
Appl Opt
; 57(16): 4477-4485, 2018 Jun 01.
Article
en En
| MEDLINE
| ID: mdl-29877396
ABSTRACT
In this paper, assuming only channel statistics information available at the receivers, we propose a transceiver design for single-input multiple-output (SIMO) free-space optical (FSO) systems over weak atmospheric turbulence, which is described by spatially correlated lognormal fading channels. To mitigate turbulence-induced spatially correlated lognormal fading, we investigate the symbol-by-symbol decision criterion and develop a low-complexity, energy-efficient transceiver by exploiting the joint spatial distribution of log irradiance. Different from existing symbol-by-symbol detection schemes, the proposed transceiver has a simple structure with asymptotical performance compared to maximum-likelihood (ML) detection and flexible modulation schemes. Computer simulations demonstrate the validity of proposed transceivers under various conditions.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Appl Opt
Año:
2018
Tipo del documento:
Article