Accession Number : AD0781136

Title :   Digital Communication Over Arbitrary Additive Noise Channels.

Descriptive Note : Rept. for Nov 73-Feb 74,


Personal Author(s) : Nirenberg,Lloyd M.

Report Date : 15 MAR 1974

Pagination or Media Count : 49

Abstract : The report presents a simple formula for the capacity of a coherent digital communication channel operating near threshold (i.e., with very low signal-to-noise ratio (SNR)) with additive noise of arbitrary probability distribution. For coherent signals in this threshold mode, a computationally feasible formula for the probability of error (P sub e) is given, along with a simple upper bound to (P sub e). For the noncoherent threshold channel, the optimum receiver is derived for arbitrary modulations and fading. This receiver is shown to specialize to previously derived canonical forms for unmodulated signals. (Author)

Descriptors :   *Data transmission systems, *Signal processing, Pulse communications, White noise, Probability density functions, Signal to noise ratio, Fading(Electromagnetic waves), Sampling, Computations

Subject Categories : Cybernetics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE