DocumentCode
1536620
Title
Spread frequency shift keying
Author
Schaub, Thomas
Author_Institution
Landis & Gyr Energy Manage. AG, Zug, Switzerland
Volume
42
Issue
234
fYear
1994
Firstpage
1056
Lastpage
1064
Abstract
A binary modulation and demodulation technique is presented which is particularly suited for channels with nonwhite interferers and/or for channels with different attenuations at the two signalling frequencies. Because spread frequency shift keying is mainly based on classical FSK modem technology it can be easily implemented and it is well suited for low cost applications. The improvement in performance compared to FSK can be up to 15 dB depending on the characteristics of the channel. Finally, the use of a convolutional code leads to an additional gain of up to 4 dBs
Keywords
Costs; Demodulation; Envelope detectors; Frequency shift keying; Gain control; Gaussian noise; Indoor radio communication; Narrowband; Radio transmitters; Receivers;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.1994.580214
Filename
580214
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