Title :
Performance of parallel concatenated convolutional coded on-off keying communication systems
Author :
Tseng, Shu-Ming ; Tsai, Shiauhe
Author_Institution :
Dept. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
In this letter, we study the performance of parallel concatenated convolutional codes (PCCC) in a Poisson optical channel with on-off keying (OOK) modulation. We modify the iterative decoding algorithm to apply PCCC to OOK modulation. The simulation results show that the PCCC has significant performance improvements over convolutional codes when signal energy is low. Therefore, PCCC is well suited for optical channels with signal energy constraints. The simulation results also show that the PCCC is still far away from channel capacity of Poisson optical channel with OOK modulation.
Keywords :
Poisson distribution; amplitude shift keying; channel capacity; convolutional codes; iterative decoding; optical fibre communication; OOK modulation; Poisson optical channel; channel capacity; convolutional codes; iterative decoding algorithm; on-off keying modulation; optical channels; parallel concatenated convolutional coded on-off keying communication systems; signal energy; signal energy constraints; AWGN; Channel capacity; Concatenated codes; Convolution; Convolutional codes; Decoding; Optical modulation; Optical noise; Optical pulses; Optical receivers;
Journal_Title :
Photonics Technology Letters, IEEE
