Title :
Interleaved concatenated coding for the turbulent atmospheric direct detection optical communication channel
Author :
Koh, Y.T. ; Davidson, F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
fDate :
6/1/1989 12:00:00 AM
Abstract :
The performance of two concatenated coding systems using a K =3, R=1/2 convolutional inner code and a Reed-Solomon (RS) (15, 9) or (15, 7) outer code was measured over a 5.76-km-long atmospheric direct detection optical communication channel. Inner code interleaving of 100 μs combined with outer code interleaving of 240 bits (60 RS symbols) was found to be sufficient to obtain a decoded BER of less than 10-6 under conditions of moderate channel turbulence and an average of 6-10 detected photons per channel bit
Keywords :
codes; data communication systems; decoding; digital communication systems; encoding; error statistics; optical communication; probability; signal detection; telecommunication channels; 5.76 km; RS outer code; Reed-Solomon codes; bit error probability; bit error rate; convolutional inner code; decoded BER; direct detection; interleaved concatenated coding; optical communication channel; turbulent atmosphere; Atmospheric measurements; Concatenated codes; Convolutional codes; Decoding; Error correction codes; Fading; Interleaved codes; Optical detectors; Optical fiber communication; Viterbi algorithm;
Journal_Title :
Communications, IEEE Transactions on
