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A Fading Reduction Technique Using Interleave-Aided Open Loop Space Diversity for Digital Maritime-Satellite Communications

Hisato IWAI, Masayuki YASUNAGA, Yoshio KARASAWA

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Summary :

In maritime satellite communications particularly for low G/T earth stations, multipath fading becomes a serious problem, especially at low elevation angles. In this paper, we show a new fading reduction scheme for sea surface reflection applicable to INMARSAT-C system. This method using open-loop-controlled diversity combined with an FEC and a interleaver overcomes the disadvantages generally associated with a conventional diversity system. This method has a respectable fading reduction effect, moreover, it can shorten the interleave length. We evaluate these effects of the system by a computer simulation and discuss its performance. The applicability of this fading reduction technique is not only to the INMARSAT-C but also to any kind of digital communication systems where interleave, FEC, and diversity can be used.

Publication
IEICE TRANSACTIONS on Communications Vol.E74-B No.10 pp.3286-3294
Publication Date
1991/10/25
Publicized
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Type of Manuscript
Special Section PAPER (Special Issue on Mobile Communication Antennas)
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