TIIS (한국인터넷정보학회)
Current Result Document : 5 / 5
| 한글제목(Korean Title) |
Case Study for Ship Ad-hoc Networks under a Maritime Channel Model in Coastline Areas |
| 영문제목(English Title) |
Case Study for Ship Ad-hoc Networks under a Maritime Channel Model in Coastline Areas |
| 저자(Author) |
Xin Su
HaiFeng Yu
KyungHi Chang
Seung-Geun Kim
Yong-Kon Lim
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| 원문수록처(Citation) |
VOL 09 NO. 10 PP. 4002 ~ 4014 (2015. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
ITU-R M.1842-1, as a well-known specification dedicated to maritime mobile applications, has standardized wireless transmission protocols according to the particular characteristics of a maritime communications scenario. A time division multiple access (TDMA) frame structure, along with modulation schemes to achieve a high data rate, has been described clearly in ITU-R M.1842-1. However, several specification items are still under “to be decided” status, which brings ambiguity to research works. In addition, the current version of ITU-R M.1842-1 is focused mainly on maritime transmissions in open-sea areas, where the cyclic prefix (CP) is set to zero and only 16-QAM is used in the multi-carrier (MC) system. System performance might be dramatically degraded in coastline areas due to the inter-symbol interference (ISI) caused by selective fading. This is because there is a higher probability that the signal will be reflected by obstacles in coastline areas. In this paper, we introduce the transmission resource block (TRB) dedicated to ITU-R M.1842-1 for a ship ad-hoc network (SANET), where the pilot pattern of TRB is based on the terrestrial trunked radio (TETRA). After that, we evaluated SANET performance under the maritime channel model in a coastline area. In order to avoid noise amplification and to overcome the ISI caused by selective fading, several strategies are suggested and compared in the channel estimation and equalization procedures, where the link-level simulation results finally validate our proposals.
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| 키워드(Keyword) |
ITU-R M.1842-1
SANET
TETRA
Channel Estimation
Channel Equalization
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| 파일첨부 |
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