Subcarrier Phase-Shift Keying Systems With Phase Errors in Lognormal Turbulence Channels

Abstract

We study the bit-error rate performance of different subcarrier phase-shift keying systems with carrier phase errors (CPE) in lognormal turbulence channels where the CPE is modeled as a Tikhonov random variable. The CPE induced asymptotic noise reference losses for the studied systems are quantified analytically by introducing the lognormal-Nakagami fading as an auxiliary channel model. The auxiliary channel method used in this study can be potentially applied to other performance analysis problems involving the lognormal channels.

Multipoint-to-Multipoint Cooperative Multiuser SIM Free-Space Optical Communication: A Signal-Space Diversity Approach

“…7 and 8 for two users over log-normal and gamma-gamma channel models, respectively. The different considered schemes in these figures are RC [38], M2M-NC-FSO [39], [40], and the proposed M2M-C-FSO schemes. Note that the y-axis in these figure denotes ASER of the overall system.…”

Performance of Generalized QAM/FSO Systems With Pointing Misalignment and Phase Error Over Atmospheric Turbulence Channels

“…where I 0 (•) is the zero-order first kind modified Bessel function and ⇢ is the SNR of the PLL used for carrier synchronization. It is observed that ⇢ is proportional to the instantaneous SNR per bit b as ⇢ = C b , where C is a constant whose typical value is around 10 [20]. Hence, (21) can be rewritten as…”

“…Although the impact of turbulence-induced fading on the performance of SIM/FSO has been extensively investigated, such studies for the case of phase errors are rather scarce. The error performances of subcarrier phase-shift keying (PSK) FSO systems with phase errors being modeled as a Tikhonov distribution were first studied in [20] and [21] for log-normal and gamma-gamma turbulence channel, respectively. In the case of the log-normal channel, asymptotic noise reference loss expressions were derived to quantify the performance degradation caused by phase errors.…”

DF Relayed Subcarrier FSO Links over Malaga Turbulence Channels with Phase Noise and Non-Zero Boresight Pointing Errors

“…If we express the instantaneous loop SNR as a multiple ψ of the instantaneous SNR, i.e., υ = ψ γ as suggested by Song et al in [3], then under phase noise impairments, the total angular deviation, which is denoted by ζ= ϕ + θ, where θ represents the contribution introduced by the phase noise process, follows a zero-mean Gaussian PDF with total variance [5]:…”