Citation

Abstract

We examine the power-efficient capacity of the noiseless optical PPM channel. It is shown that even though the capacity per photon can be made to increase without bound, the capacity per channel use (for best power efficiency) is always less than 2 nats per symbol. Furthermore, it approaches 2 nats per symbol as the bandwidth expansion factor goes to infinity.

Details

Volume
42-67
Published
February 15, 1982
Pages
54–58
File Size
241.8 KB