Citation
Abstract
We show that the capacity, measured in nats per photon, of a pulse-position modulation (PPM) scheme involving Q uses of a channel that neglects thermal noise and makes binary decisions on the presence of photons (Z-channel) is very close to the optimum capacity for utilizing the Z-channel. For Q in excess of around 100, the differences in capacity are probably insignificant for any practical application. The PPM scheme capacity results as the optimum solution to a communication system design problem.
Details
- Volume
- 42-56
- Published
- April 15, 1980
- Pages
- 108–113
- File Size
- 479.2 KB