DocumentCode :
767605
Title :
Randomization Effect of Errors by Means of Frequency-Hopping Techniques in a Fading Channel
Author :
Mizuno, Mitsuhiko
Author_Institution :
Radio Research Labs., Ministry of Posts and Telecomm., Japan
Volume :
30
Issue :
5
fYear :
1982
fDate :
5/1/1982 12:00:00 AM
Firstpage :
1052
Lastpage :
1056
Abstract :
This paper describes the effective randomization of errors by means of frequency hopping (FH) in a selective Rayleigh fading channel. The major advantage of the randomization is the option to use random error-correcting codes in burst error channels, including the fading channel. Bit interleaving, which operates in the time domain, is very useful to randomize the errors, but equivalent operation is possible by FH in the frequency domain. That is based on low correlation between frequency chips, which is realized by hopping over a sufficiently wide bandwidth in selective fading channels. In this paper, bit error rates of FH with majority decision are analyzed to show the effect of randomization in various spread bandwidths. It is also shown that FH and interleaving are equivalent in the sense that spread bandwidth corresponds to interleaving degree with respect to its randomization effect.
Keywords :
error correction codes; fading; mobile radio systems; radiocommunication; bit error rates; bit interleaving; burst error channels; digital mobile radio; effective randomization; error-correcting codes; errors; frequency-hopping techniques; selective Rayleigh fading channel; spread spectrum; Bandwidth; Bit error rate; Diversity reception; Error analysis; Error correction codes; Fading; Frequency; Interference; Interleaved codes; Rayleigh channels;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOM.1982.1095557
Filename :
1095557
Link To Document :
بازگشت