In optical wireless communications, a channel-matched adaptive coherent receiver may be implemented using an array of receive apertures. After atmospheric channel fading estimation, several replicas of a message received through the atmosphere are combined. As an alternative to training-based channel estimation, we analyze the performance of sequential techniques for direct optimization of multi-aperture array receivers in free-space coherent laser communications.
© 2013 IEEE
Aniceto Belmonte and Joseph M. Kahn, "Sequential Optimization of Adaptive Arrays in Coherent Laser Communications," J. Lightwave Technol. 31, 1383-1387 (2013)