Performance of BICM-Based QAM-SIM OWC Over Gamma-Gamma Turbulence Channels

Author

Malik, Muhammad Talha ; Hossain, Md Jahangir ; Julian Cheng ; Alouini, Mohamed-Slim

Author_Institution

Sch. of Eng., Univ. of British Columbia, Kelowna, BC, Canada

Volume

19

Issue

5

fYear

2015

fDate

May-15

Firstpage

731

Lastpage

734

Abstract

We derive a series expression for the pair-wise error probability (PEP) of bit interleaved coded modulation (BICM)-based subcarrier intensity modulation (SIM) optical wireless communication (OWC) system employing M² -ary quadrature amplitude modulation ( M²-QAM) over the Gamma-Gamma turbulence channels. Using this expression, we develop an upper bound (UB) to predict the bit-error rate performance of such system. Simulation results are presented to verify the analytical results. We also develop an asymptotic UB which reveals that the diversity order depends on the smaller channel parameter and the free distance of the convolutional code.

Keywords

channel coding; convolutional codes; error statistics; intensity modulation; interleaved codes; modulation coding; optical communication; optical modulation; quadrature amplitude modulation; wireless channels; BICM-based QAM-SIM OWC performance; M²-QAM; M²-ary quadrature amplitude modulation; PEP; asymptotic UB; asymptotic upper bound; bit error rate performance; bit interleaved coded modulation; convolutional code free distance; gamma-gamma turbulence channel; optical wireless communication system; pair-wise error probability; subcarrier intensity modulation; Bit error rate; Convolutional codes; Optical fiber communication; Photodetectors; Quadrature amplitude modulation; Signal to noise ratio; Atmospheric turbulence; Gamma-Gamma channel; bit-interleaved coded modulation; optical wireless communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2015.2405554

Filename

7045447