title: Performance analysis of coherent wireless optical communications with atmospheric turbulence.
abstract: Coherent wireless optical communication systems with heterodyne detection are analyzed for binary phase-shift keying (BPSK), differential PSK (DPSK), and M-ary PSK over Gamma-Gamma turbulence channels. Closed-form error rate expressions are derived using a series expansion approach. It is shown that, in the special case of K-distributed turbulence channel, the DPSK incurs a 3 dB signal-to-noise ratio (SNR) penalty compared to BPSK in the large SNR regime. The outage probability is also obtained, and a detailed outage truncation error analysis is presented and used to assess the accuracy in system performance estimation. It is shown that our series error rate expressions are simple to use and highly accurate for practical system performance estimation.
authors.affiliation: School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada. mingbo.niu@ubc.ca
authors.forename: Mingbo
authors.initials: M
authors.lastname: Niu
authors.forename: Xuegui
authors.initials: X
authors.lastname: Song
authors.forename: Julian
authors.initials: J
authors.lastname: Cheng
authors.forename: Jonathan F
authors.initials: JF
authors.lastname: Holzman
mesh_terms: D016477:Artifacts; D001272:Atmosphere; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D017711:Nonlinear Dynamics; D055096:Optical Devices; D013685:Telecommunications / Q000295:instrumentation*