PMID- 35297895
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220318
IS  - 1539-4522 (Electronic)
IS  - 1559-128X (Linking)
VI  - 61
IP  - 8
DP  - 2022 Mar 10
TI  - Performance analysis of optical spatial modulation over a correlated gamma-gamma 
      turbulence channel.
PG  - 2025-2035
LID - 10.1364/AO.447644 [doi]
AB  - In this paper, theoretical closed expressions for the symbol error rate (SER) of 
      two optical spatial modulation (OSM) schemes in a free-space optical (FSO) 
      communication system-optical spatial pulse amplitude modulation (OSPAM) and 
      optical spatial pulse position modulation (OSPPM)-over correlated gamma-gamma 
      fading channels are derived. To study practical optical channels affected by 
      atmospheric eddies, the effect of arbitrary atmospheric channel correlation is 
      considered particularly, and it is shown that the correlation can degrade system 
      performance. The parameters of atmospheric turbulence and the number of optical 
      antennas are also under consideration in performance analysis of the FSO multiple 
      input, multiple output system. All analytical results are validated with Monte 
      Carlo simulations, which clearly illustrate the effect of spatial constellation 
      and signal constellation on the average SER. In addition, it is shown by 
      comparison that turbulence fluctuation and channel correlation have less 
      influence on the OSPPM system than the OSPAM system. Overall, the framework 
      proposed in this paper is proven to be effective and conducive to algorithm 
      research on reducing the effect of correlated channels on OSM FSO systems.
FAU - Yu, Siyuan
AU  - Yu S
FAU - Geng, Chi
AU  - Geng C
FAU - Zhong, Jie
AU  - Zhong J
FAU - Kang, Dongpeng
AU  - Kang D
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Appl Opt
JT  - Applied optics
JID - 0247660
SB  - IM
EDAT- 2022/03/18 06:00
MHDA- 2022/03/18 06:01
CRDT- 2022/03/17 12:13
PHST- 2022/03/17 12:13 [entrez]
PHST- 2022/03/18 06:00 [pubmed]
PHST- 2022/03/18 06:01 [medline]
AID - 470112 [pii]
AID - 10.1364/AO.447644 [doi]
PST - ppublish
SO  - Appl Opt. 2022 Mar 10;61(8):2025-2035. doi: 10.1364/AO.447644.