UNJUK KERJA M-QAM PADA SISTEM DVB-T
DVB-T (Digital Video Broadcasting Terrestrial) is a first generation DTT (Digital Terresterial Television) standard developed by ETSI (European Telecommunications Standards Institute). It can be operated in the channel bandwidth of 6, 7, or 8 MHz, and has two options number of OFDM sub-carriers whic...
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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/132343/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=72872 |
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| 總結: | DVB-T (Digital Video Broadcasting Terrestrial) is a first generation DTT
(Digital Terresterial Television) standard developed by ETSI (European
Telecommunications Standards Institute). It can be operated in the channel
bandwidth of 6, 7, or 8 MHz, and has two options number of OFDM sub-carriers
which are 2048 and 8192. OFDM (Orthogonal Frequency Division Multiplexing)
is chosen since it can provide a large data capacity and multipath resistant. Using
QPSK, 16-QAM, 64-QAM and 256-QAM modulation, the performance is
monitored by comparing BER (Bit Error Ratio) value to SNR (Signal to Noise
Ratio). Simulation has been carried out for 8 MHz bandwidth with ¾ coding rate.
The results show that zero BER achieved at SNR as high as 12 dB, 20 dB, 27 dB,
and 29 dB for QPSK, 16, 64 and 256 QAMs, respectively. It should be noticed
that QPSK and 256 QAM are not implemented in DVB-T. |
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