Accession Number : AD0284452

Title :   INFORMATION TRANSFER EFFICIENCY OF WIDEBAND COMMUNICATIONS SYSTEMS. PART III. A WIDEBAND ADAPTIVE COMMUNICATION SYSTEM

Corporate Author : PURDUE UNIV LAFAYETTE IND SCHOOL OF ELECTRICAL ENGINEERING

Personal Author(s) : HANCOCK,J.C. ; LINDSEY,W.C.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : RATIO, Radio interference, Probability. Identifiers: Adaptive communications. The concept of an open loop Adaptive Communication link is established as one which is capabl of monitoring the medium through which it must perform while simultaneously tr nsmitting information and continuously adjusting its modes of operation so as to optimize its performance with respect to a performance criterion chosen a priori. Statistical methods are applied to the adaptive communication problem. Communicating through a random multipath channel with additive noise is considered. Probability of error is evaluated in closed form for three different modes of operation. A major conclusion taken from these expressions is that the probability of error in no case depends directly on the channel gain, but rather is a function of the total average energy received from all propagation modes. (Author)

Descriptors :   *COMMUNICATION SYSTEMS, *COMMUNICATION THEORY, *DATA TRANSMISSION SYSTEMS, *COMMUNICATION AND RADIO SYSTEMS, ATTENUATION, BROADBAND, CODING, ERRORS, IONOSPHERIC PROPAGATION, MULTIPATH TRANSMISSION, PROBABILITY, PROPAGATION, RADIO INTERFERENCE, RADIO RECEIVERS, RADIO SIGNALS, RADIO TRANSMISSION, RADIO WAVES, SCATTERING, SIGNAL-TO-NOISE RATIC, STATISTICAL ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE