Title :
Performance Analysis of the Asymmetric Dual-Hop Relay Transmission With Mixed RF/FSO Links
Author :
Lee, Eunju ; Park, Jaedon ; Han, Dongsoo ; Yoon, Giwan
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
This letter reports a performance analysis of a dual-hop relay system composed of asymmetric radio-frequency and free-space optics (RF/FSO) links. This approach is based on the fact that FSO links can provide even wider bandwidths as compared to RF ones. In particular, an exact closed-form expression for the end-to-end outage probability of the RF/FSO relay links is derived. Overall, the RF/FSO links show a slightly worse performance than the RF/RF links, but the performance gap is gradually reduced as the signal-to-noise ratio (SNR) increases. Our mathematical analysis results were verified by exactly matching Monte Carlo simulation results.
Keywords :
Monte Carlo methods; mathematical analysis; optical links; probability; radio links; Monte Carlo simulation; SNR; asymmetric dual-hop relay transmission; asymmetric radiofrequency-free-space optical relay links; end-to-end outage probability; mathematical analysis; mixed RF-FSO links; signal-to-noise ratio; Materials; Optical fiber communication; Radio frequency; Rayleigh channels; Relays; Signal to noise ratio; Asymmetric dual-hop relay system; free-space optics (FSO) communications; radio frequency (RF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2166063
