OFDM/FM frame synchronization for mobile radio data communication

Author

Warner, William D. ; Leung, Cyril

Author_Institution

MPR Teltech Ltd., Burnaby, BC, Canada

Volume

42

Issue

3

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

302

Lastpage

313

Abstract

A synchronization scheme enabling the use of orthogonal frequency division multiplexing (OFDM)/FM over a mobile radio channel in a pure ALOHA environment is proposed. The scheme encodes synchronization information in parallel with data in the same manner in which data is encoded in the OFDM/FM frame. The synchronization information is in the form of tones, centered in certain reserved frequency subchannels of the OFDM signal. The receiver uses a correlation detector, implemented in the frequency domain, to acquire synchronization accurately on a packet-by-packet basis. Experimental results indicate that the bit-error-rate performance achievable with the proposed scheme is within 1.5 dB of the performance obtained with ideal synchronization

Keywords

data communication systems; digital radio systems; fading; frequency division multiplexing; mobile radio systems; synchronisation; BER; OFDM/FM frame; UHF; VHF; bit-error-rate performance; correlation detector; fading; frame synchronization; frequency domain; mobile radio data communication; orthogonal frequency division multiplexing; packet-by-packet basis; pure ALOHA environment; reserved frequency subchannels; synchronization scheme; Data communication; Detectors; Digital communication; Frequency division multiplexing; Frequency domain analysis; Frequency modulation; Frequency synchronization; Land mobile radio; OFDM modulation; Receivers;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.231882

Filename

231882