Published January 1, 2012
| Version v1
Journal article
Open
Novel Adaptive Transmission Algorithms for Free-Space Optical Links
Description
Atmospheric turbulence is a major degrading factor in free-space optical (FSO) systems. Since turbulence-induced fading results in a very slowly-varying channel, reliable feedback is possible allowing the implementation of adaptive transmission in practical FSO systems. In this paper, we propose adaptive transmission algorithms in which transmit power and/or modulation size are varied according to the channel conditions. The design of adaptive algorithms is formulated as optimization problems of spectral efficiency and average power consumption at a targeted value of outage probability under peak power constraints. The proposed adaptive schemes bring significant improvements over their non-adaptive counterparts.
Files
bib-c20b4b46-abd6-4789-ae46-5e5ad0586ee3.txt
Files
(155 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:3dc75867a949ca7cdfada2dd88194433
|
155 Bytes | Preview Download |