An Introduction to Doppler Effect and Fading in Mobile Communications

Abstract

In this research we present an introductory analysis of a complex aspect of mobile communications: Doppler effect is evaluated in both Ricean and Rayleigh channels. A noncoherent 2-FSK scheme is selected to evaluate the behavior of the system under very strong fading channel conditions. The analysis is conducted for the binary case due to the possibility of developing closed form solutions. Therefore, the approach is simplified avoiding long lasting simulations that may obscure the concepts. The probability of bit error for the 2-FSK case can also be used as an initial bound for a M-FSK scheme. Diversity is evaluated as a means of combating fading and Doppler effects. Error correcting codes, in the form of a convolutional codes, are also used and applied to both effects. Mobile communications with Doppler effect, fading channels.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1992
Accession Number
ADA260976

Entities

People

  • Abdon B. De Paula

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Bessel Functions
  • Coefficients
  • Communication Systems
  • Computers
  • Detectors
  • Doppler Effect
  • Electrical Engineering
  • Equations
  • Frequency
  • Frequency Shift
  • Integrals
  • Mobile Communications
  • Mobile Phones
  • Probability
  • Random Variables
  • Simulations
  • Urban Areas

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Systems Analysis and Design