| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6878995 | AEU - International Journal of Electronics and Communications | 2018 | 7 Pages |
Abstract
Radio-over-free-space-optics (Ro-FSO) technology may pave the way towards a ubiquitous platform for seamless integration of radio and optical networks without expensive optical fiber cabling. In this paper, to increase the capacity of Ro-FSO, mode division multiplexing (MDM) of two modes has been capitalized in a three-channel WDM system spaced by 1â¯nm over a FSO link of 80â¯km, resulting in a 120â¯Gbps six-channel Ro-FSO system. The SNR and received power of MDM of two Laguerre-Gaussian modes LG00 and LG01 is compared with respect to MDM of two transverse donut modes. The performance of four-level quadrature amplitude modulation (QAM) for orthogonal frequency division multiplexing (OFDM) of radio subcarriers in the WDM-MDMs system is investigated for mitigation of frequency-selective fading under strong atmospheric turbulence.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Sushank Chaudhary, Xuan Tang, Xian Wei,