RT Journal Article
T1 On the capacity of MISO FSO systems over gamma-gamma and misalignment fading channels.
A1 Boluda-Ruiz, Rubén
A1 García-Zambrana, Antonio
A1 Del Castillo Vázquez, Beatriz
A1 Del Castillo Vázquez, Carmen
K1 Comunicaciones ópticas
AB In this work, the ergodic capacity performance for multipleinput/single-output (MISO) free-space optical (FSO) communicationssystem with equal gain combining (EGC) reception is analyzed overgamma-gamma and misalignment fading channels, which are modeled asstatistically independent, but not necessarily identically distributed (i.n.i.d.).Novel and analytical closed-form ergodic capacity expression is obtainedin terms of H-Fox function by using the well-known inequality betweenarithmetic and geometric mean of positive random variables (RV) in order toobtain an approximate closed-form expression of the distribution of the sumof M gamma-gamma with pointing errors variates. In addition, we presentan asymptotic ergodic capacity expression at high signal-to-noise ratio(SNR) for the ergodic capacity of MISO FSO systems. It can be concludedthat the use of MISO technique can significantly reduce the effect of theatmospheric turbulence as well as pointing errors and, hence, provide significant capacity gain over the direct path link (DL). The impact of pointingerrors on the MISO FSO system is also analyzed, which only depends onthe number of laser sources and pointing error parameters. Moreover, itcan be also concluded that the ergodic capacity performance is dramatically reduced as a consequence of the severity of pointing error effects.Simulation results are further demonstrated to confirm the analytical results
PB Optica Publishing Group
YR 2015
FD 2015-08
LK https://hdl.handle.net/10630/36412
UL https://hdl.handle.net/10630/36412
LA eng
NO Rubén Boluda-Ruiz, Antonio García-Zambrana, Beatriz Castillo-Vázquez, and Carmen Castillo-Vázquez, "On the capacity of MISO FSO systems over gamma-gamma and misalignment fading channels," Opt. Express 23, 22371-22385 (2015)
NO https://openpolicyfinder.jisc.ac.uk/id/publication/13361
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026