Performance of multiple-input multiple-output free space optics using hybrid subcarrier intensity modulation with avalanche photodiode receiver

被引：0

作者：

Giri, Rajat Kumar ^{[1
]}

Patnaik, Bijayananda ^{[2
]}

机构：

[1] Int Inst Informat Technol, ETC Engn, Bhubaneswar 751003, Orissa, India

[2] Int Inst Informat Technol, Dept ETC Engn, Bhubaneswar 751003, Orissa, India

来源：

INTERNATIONAL JOURNAL OF COMMUNICATION NETWORKS AND DISTRIBUTED SYSTEMS | 2019年 / 22卷 / 04期

关键词：

Free space optics; FSO; subcarrier intensity modulation; SIM; scintillation; pulse position modulation; PPM; multiple-input multiple-output; MIMO; equal gain combining; EGC; avalanche photodiode; APD; ATMOSPHERIC-TURBULENCE; COMMUNICATION-SYSTEM; APD RECEIVER; FSO LINKS; CHANNEL; WIRELESS; EFFICIENCY; DIVERSITY; SCHEMES; PPM;

D O I：

10.1504/IJCNDS.2019.099969

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In order to improve the performance of a free space optical (FSO) communication system, hybrid pulse position modulation-binary phase shift keying-subcarrier intensity modulation (PPM-BPSK-SIM) technique is proposed. The system performance is further improved by using multiple-input multiple-output (MIMO) configuration and avalanche photodiode (APD) receiver. The use of multiple lasers and photo detectors in MIMO FSO system reduces the scintillation effect in the atmosphere. In this study, the impact of different parameters like irradiance, link distance, and turbulence level have been considered for the bit error rate (BER) analysis. The relevant mathematical model is also presented. The simulation results show that the hybrid PPM-BPSK-SIM scheme performs better compared to PPM and BPSK-SIM schemes. Also, APD receiver shows a noticeable BER improvement than p-type intrinsic n-type (PIN) receiver in our proposed scheme.

引用

页码：468 / 485

页数：18

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