Channel capacity and outage probability analysis of sub carrier intensity modulated BPSK system over M-distribution free space optical channel

Abstract

Inthis paper, the performance analysis of a subcarrier intensity-modulated free-space optical (SIM-FSO) communication system is investigated for the generalized channel model known as M-distribution channel, and new closed-form analytical expressions are derived for the outage probability and average channel capacity of the system. Since, the turbulenceinduced fading model considered is the generalized one, the expressions obtained can be applied for performance analysis of SIM-FSO communication systems for most of the previously existing channel models.Keywords-FSO (Free Space Optics), Subcarrier intensity modulation, Malaga-distribution channel, Outage probability, Ergodic channel capacity. I. INTRODUCTIONFree-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking applications. Recently, free-space optical (FSO) communication systems have received considerable attention due to their various advantages over RF communication systems. These advantages are: operation over the unlicensed optical spectrum making it cost-free to obtain the necessary bandwidth and free from other regulations, high data rate and line-of-sight wireless transmission, free from health hazards such as non-ionizing radiation and high security since it being highly directive it is difficult to overhear and if somebody overhears it is easy to detect that. FSO communication is also very cost-effective and easy for deployment and maintenance compared to fiber optical communication systems [1]. Applications of FSO systems cover areas such as indoor, outdoor and under water domains

Adaptive Transmission Based on MIMO Mode Switching Over Malaga Turbulence Channel With Pointing Error

“…We propose an adaptive system design to construct LUT based on the average BER and average channel capacity [28]. The average BER is expressed as [29]:…”

“…Based Meijer G-function operational property ( [27], 07.34.21.0013.01), replacing ( 16) and ( 29) into (28) to obtain the approximated expression of () BER t as (30), shown at the next page.…”