title: Chip-interleaved optical code division multiple access relying on a photon-counting iterative successive interference canceller for free-space optical channels.
abstract: In this paper, we design a novel Poisson photon-counting based iterative successive interference cancellation (SIC) scheme for transmission over free-space optical (FSO) channels in the presence of both multiple access interference (MAI) as well as Gamma-Gamma atmospheric turbulence fading, shot-noise and background light. Our simulation results demonstrate that the proposed scheme exhibits a strong MAI suppression capability. Importantly, an order of magnitude of BER improvements may be achieved compared to the conventional chip-level optical code-division multiple-access (OCDMA) photon-counting detector.
authors.affiliation: Department of Communications Science and Engineering, Fudan University, Shanghai, 200433, China.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Zhou
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Zheng
authors.forename: Rong
authors.initials: R
authors.lastname: Zhang
authors.forename: Lajos
authors.initials: L
authors.lastname: Hanzo