Title :
Information capacity of the Poisson channel
Author :
Frey, Michael R.
Author_Institution :
Dept. of Stat., North Carolina Univ., Chapel Hill, NC, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
The information capacity of the Poisson channel with random or time-varying noise intensity is obtained for time-varying peak and average constraints on the encoder intensity. The channel model is specified, and some definitions from information theory are given. Causal feedback is shown not to increase the channel capacity for the case of nonrandom noise intensity. For random noise intensity, use of causal feedback does increase capacity; the extent of that increase is quantified. Jamming is considered, and the optimal jamming signal is given. Poisson channels with thinning are introduced
Keywords :
channel capacity; information theory; jamming; optical communication; Poisson channel; average constraints; causal feedback; channel capacity; encoder intensity; information capacity; information theory; nonrandom noise intensity; optical communication; optimal jamming signal; random noise intensity; thinning; time varying peak constraints; time-varying noise intensity; Background noise; Channel capacity; Dark current; History; Jamming; Optical feedback; Optical fiber communication; Optical filters; Optical noise; Optical receivers;
Journal_Title :
Information Theory, IEEE Transactions on
