Richa Priyadarshani

• Indian Institute of Technology Delhi

In this paper, we study the impact of correlation on the bit error rate (BER) and the channel capacity of a free-space optical (FSO) multiple-input-multiple-output (MIMO) system employing optical space shift keying (OSSK) over a fading channel. In order to study a practical correlated channel, we consider the effect of channel correlation due to bo...

Experimental and analytical study of various link characteristics and BER performance of a free-space optical (FSO) multiple-input-single-output (MISO) system with repetition coding (RC) is performed both experimentally and theoretically. The study is performed in the presence of atmospheric turbulence (AT) over a correlated channel with an erbium-...

This paper presents theoretical and experimental bit error rate (BER) results for a free-space optical (FSO) multiple-input-multiple-output system over an arbitrarily correlated turbulence channel. We employ an erbium-doped fiber amplifier at the receiver (Rx), which results in an improved Rx’s sensitivity at the cost of an additional non-Gaussian...

In this paper, we present bit error rate (BER) analysis of space shift keying (SSK) for a free space optical multiple-input-single-output system over an arbitrarily correlated Gamma-Gamma (ΓΓ) channel for different correlation models under moderate and strong turbulence. We first derive the probability density function (pdf) of difference of two ar...

In this letter, we present the outage performance analysis of a single-input-multiple-output (SIMO) free-space optical (FSO) system with selection combining over an arbitrarily correlated Málaga (M)-distributed channel. A novel and generalized analytical expression for the joint probability density function of the received signal-to-noise ratio, us...

In free space optical (FSO) communication systems, atmospheric turbulence is major cause of bit error rate (BER) performance degradation. The error performance of the system can be significantly improved with the help of spatial diversity by employing multiple transmit or receive apertures. However, correlation of channels under turbulence in the c...