Performance analysis of MIMO FSO link with Alamouti coding and switch-and-examine combining
| Autor: | Chayanika Bose, Aniruddha Chandra, Akinchan Das, Banibrata Bag |
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| Rok vydání: | 2018 |
| Předmět: |
Computer Networks and Communications
Computer science Quality of service Monte Carlo method MIMO Transmitter Keying 02 engineering and technology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Diversity combining 020210 optoelectronics & photonics Hardware and Architecture 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Bit error rate Electronic engineering Fading Electrical and Electronic Engineering Software Computer Science::Information Theory |
| Zdroj: | Photonic Network Communications. 36:350-360 |
| ISSN: | 1572-8188 1387-974X |
| Popis: | Atmospheric turbulence is one of the main causes of degrading the quality of service in free-space optical (FSO) systems. The use of diversity techniques in an FSO system can minimize the fading effect which is caused by atmospheric turbulence. When diversity combining is applied at both the transmitter and the receiver ends, the system can mitigate the degradation more effectively. In this paper, we consider a $$2\times L$$ multiple-input multiple-output FSO system with on–off keying modulation where the link is affected by gamma–gamma fading. Alamouti space–time coding is implemented at the transmitter, while the receiver employs switch-and-examine combining. Analytical expressions for different performance metrics such as outage probability, average bit error rate and average capacity are derived using a moment-generating function-based approach. Numerical results are provided and are compared with Monte Carlo simulations. |
| Databáze: | OpenAIRE |
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