- Tytuł:
- Ergodic Channel Capacity of PPM-Coded Optical MIMO Communications Under Combined Effects
- Autorzy:
-
Cao, Minghua
Zhang, Yue
Kang, Zhongjiang
Wang, Huiqin - Powiązania:
- https://bibliotekanauki.pl/articles/1844525.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
atmospheric channel
ergodic channel capacity
pulse position modulation
spatial correlation
optical wireless communication - Opis:
- The ergodic channel capacity of wireless optical multiple-input multiple-output (MIMO) system with pulse position modulation (PPM) is investigated. The combined effects of atmospheric turbulence, atmospheric attenuation, pointing error and channel spatial correlation are taken into consideration. The expression of ergodic channel capacity is derived, and is further performed by Wilkinson approximation method for simplicity. The simulation results indicated that the strong spatial correlation has the greatest influence on the ergodic channel capacity, followed by pointing errors and atmospheric turbulence. Moreover, the ergodic channel capacity growth brought by space diversity only performs well under independent and weakly correlated channels. Properly increasing the size and spacing of the receiving apertures is an effective means of effectively increasing the ergodic channel capacity.
- Źródło:
-
International Journal of Electronics and Telecommunications; 2021, 67, 3; 431-436
2300-1933 - Pojawia się w:
- International Journal of Electronics and Telecommunications
- Dostawca treści:
- Biblioteka Nauki
Artykuł