The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam rangkaian wayarles berbilang hop, isyarat yang dihantar biasanya dimajukan melalui beberapa terminal geganti. Jadi, kualiti komunikasi merosot disebabkan oleh penghantaran semula ini melalui saluran pudar dalam terminal geganti. Pada asasnya, skim penyampaian koperasi konvensional berdasarkan kepelbagaian kelewatan kitaran (CDD) mengurangkan kemerosotan ini kerana skim ini boleh mempunyai banyak terminal geganti yang menghantar isyarat secara serentak. Walau bagaimanapun, kami tidak boleh memperoleh keuntungan kepelbagaian maksimum kerana penghantaran semula tanpa mengambil kira persekitaran saluran geganti. Dalam surat ini, untuk mengatasi penurunan prestasi, kami mencadangkan skema penyampaian nyahkod dan ke hadapan (DF) adaptif berdasarkan CDD yang menggunakan kod semakan redundansi kitaran (CRC). Keputusan simulasi menunjukkan bahawa skema yang dicadangkan memberikan lebih banyak peningkatan dalam prestasi ralat daripada skema konvensional dalam rangkaian multi-hop.
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Salinan
Jin-Hyuk SONG, Hyoung-Kyu SONG, "Adaptive DF Relaying Scheme Based on CDD for Multi-Hop Networks with Multiple Relay Terminals" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 4, pp. 1085-1088, April 2011, doi: 10.1587/transcom.E94.B.1085.
Abstract: In multi-hop wireless networks, the transmitted signal is generally forwarded over several relay terminals. So, the quality of communications is degraded due to these re-transmissions over fading channels in relay terminals. Basically, the conventional cooperative relaying scheme based on cyclic delay diversity (CDD) reduces this degradation because this scheme could have numerous relay terminals which simultaneously transmit the signals. However, we cannot obtain the maximum diversity gain because of the re-transmission without considering relay channel environments. In this letter, to overcome the decreased performance, we propose an adaptive decode-and-forward (DF) relaying scheme based on CDD which uses cyclic redundancy check (CRC) code. Simulation results show that the proposed scheme provides more improvement in error performance than the conventional schemes in multi-hop networks.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.1085/_p
Salinan
@ARTICLE{e94-b_4_1085,
author={Jin-Hyuk SONG, Hyoung-Kyu SONG, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive DF Relaying Scheme Based on CDD for Multi-Hop Networks with Multiple Relay Terminals},
year={2011},
volume={E94-B},
number={4},
pages={1085-1088},
abstract={In multi-hop wireless networks, the transmitted signal is generally forwarded over several relay terminals. So, the quality of communications is degraded due to these re-transmissions over fading channels in relay terminals. Basically, the conventional cooperative relaying scheme based on cyclic delay diversity (CDD) reduces this degradation because this scheme could have numerous relay terminals which simultaneously transmit the signals. However, we cannot obtain the maximum diversity gain because of the re-transmission without considering relay channel environments. In this letter, to overcome the decreased performance, we propose an adaptive decode-and-forward (DF) relaying scheme based on CDD which uses cyclic redundancy check (CRC) code. Simulation results show that the proposed scheme provides more improvement in error performance than the conventional schemes in multi-hop networks.},
keywords={},
doi={10.1587/transcom.E94.B.1085},
ISSN={1745-1345},
month={April},}
Salinan
TY - JOUR
TI - Adaptive DF Relaying Scheme Based on CDD for Multi-Hop Networks with Multiple Relay Terminals
T2 - IEICE TRANSACTIONS on Communications
SP - 1085
EP - 1088
AU - Jin-Hyuk SONG
AU - Hyoung-Kyu SONG
PY - 2011
DO - 10.1587/transcom.E94.B.1085
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2011
AB - In multi-hop wireless networks, the transmitted signal is generally forwarded over several relay terminals. So, the quality of communications is degraded due to these re-transmissions over fading channels in relay terminals. Basically, the conventional cooperative relaying scheme based on cyclic delay diversity (CDD) reduces this degradation because this scheme could have numerous relay terminals which simultaneously transmit the signals. However, we cannot obtain the maximum diversity gain because of the re-transmission without considering relay channel environments. In this letter, to overcome the decreased performance, we propose an adaptive decode-and-forward (DF) relaying scheme based on CDD which uses cyclic redundancy check (CRC) code. Simulation results show that the proposed scheme provides more improvement in error performance than the conventional schemes in multi-hop networks.
ER -