Title :
Hybrid ARQ for FSO Communications Through Turbulent Atmosphere
Author :
Kiasaleh, Kamran
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA
fDate :
9/1/2010 12:00:00 AM
Abstract :
Hybrid automatic-repeat request (HARQ) technique is investigated for binary pulse-position modulation (BPPM), free-space optical (FSO) communications through turbulent optical channels. It is assume that the received optical signal is detected using a direct-detection (DD) mechanism and that shot-noise, background noise, and thermal noise are present at the receiver. Performance of the HARQ-FSO system is assessed in terms of packet error rate, and is compared with that of a conventional ARQ-FSO system to draw conclusions about the effectiveness of HARQ mechanism in circumventing the impact of turbulence.
Keywords :
atmospheric optics; atmospheric turbulence; automatic repeat request; optical links; pulse position modulation; shot noise; thermal noise; FSO communication; background noise; binary pulse position modulation; direct detection mechanism; free space optical communication; hybrid ARQ; hybrid automatic repeat request; shot noise; thermal noise; turbulent atmosphere; turbulent optical channel; Adaptive optics; Error analysis; Modulation; Optical fiber communication; Optical noise; Optical receivers; Chase; FSO; HARQ; OOK; optical;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.080410.091867
