PERANCANGAN DAN EVALUASI UNJUK-KERJA REPEAT-ACCUMULATE CODESUNTUK KANAL KOMUNIKASI NIRKABEL DENGAN RELE
Wireless communication system has developed very rapidly because it offers high flexibility. However, wireless communication systems suffer a phenomenon that is difficult to overcome called multipath fading . One of the methods offered to reduce the effect of multipath fading is a wireless communica...
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| Main Authors: | , |
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| 格式: | Theses and Dissertations NonPeerReviewed |
| 出版: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| 主題: | |
| 在線閱讀: | https://repository.ugm.ac.id/133346/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73964 |
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| 總結: | Wireless communication system has developed very rapidly because it
offers high flexibility. However, wireless communication systems suffer a
phenomenon that is difficult to overcome called multipath fading . One of the
methods offered to reduce the effect of multipath fading is a wireless
communication systems with relay . Various communication protocols with relay
and coding schemes have been introduced to overcome these problems.
In this research decode-and-forward protocol is used and RAC coding
scheme is chosen for relay channel. RAC is chosen because it has a simple
structure, has low complexity encoding scheme, and supported by iterative
decoding. The results showed that the use of relays in LOS channel resulting
performance improvements compared to a wireless communication system
without relay if the relay is positioned right in the middle between the information
source and destination. While in urban areas the channel model, the relay
communication system showed performance improvements whether the relay is
positioned ½, ¼ , or ¾ from the information source. Optimal position is achieved
if the relay is positioned right in the middle between the information source and
destination. |
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