An Introduction to Doppler Effect and Fading in Mobile Communications

reportActive / Technical Report | Accession Number: ADA260976 | Open PDF

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.

Author(s):
De Paula, Abdon B.
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Descriptive Note:
Master's thesis
Pagination:
0098

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NPS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_5.3_Planning; JCA_1.4_Force Support
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*COMMUNICATION AND RADIO SYSTEMS, *RADIO LINKS, *DOPPLER EFFECT, SIMULATION, PROBABILITY, THESES, MOBILE, ERRORS, GAIN, SATELLITE COMMUNICATIONS, RADIO SIGNALS, CHANNELS, BESSEL FUNCTIONS
Field(s)/Group(s):
Radiofrequency Wave Propagation, Radio Communications
Keyword(s):
MOBILE COMMUNICATIONS, RICEAN FADING CHANNEL, RAYLEIGH FADING CHANNEL
Report Date:
1992 Dec 01