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Robust Synchronization to Frequency Selective Fading Channel in OFDM Systems : 주파수 선택적 페이딩 채널에서 강인한 OFDM 동기 기법
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jin-Woo | - |
dc.contributor.author | Lee, Yong-Hwan | - |
dc.date.accessioned | 2009-08-12T22:53:11Z | - |
dc.date.available | 2009-08-12T22:53:11Z | - |
dc.date.issued | 2007-07 | - |
dc.identifier.citation | 대한전자공학회 하계종합학술대회, 2004년 7월 | en |
dc.identifier.uri | https://hdl.handle.net/10371/7070 | - |
dc.description.abstract | The synchronization is one of the most important issues in the OFDM systems. Although the cyclic prefix has widely been used for
symbol synchronization, it may not provide performance robust to the multi-cell environment. Therefore, the training symbol method is usually employed in multi-cell environment. Although the use of matched filter can provide best performance, it may have a problem of a large amount of computational complexity. To reduce the complexity, Cox introduced a method that utilizes a training symbol that has two repetitive patterns. However, it may not properly work in frequency selective fading channel due to the delay spread. In this paper, we propose three-step synchronization scheme robust to frequency selective fading channel. Firstly, the receiver obtains frame timing and then the symbol timing in the next step. Finally, the delay is compensated to correct residual timing offset. To facilitate the threestep operation, we design a training symbol that has four repetitions within a symbol period. Numerical results show that the proposed scheme can provide robust performance with low complexity. | en |
dc.description.sponsorship | Skypass4G project of Samsung Electronics | en |
dc.language.iso | en | en |
dc.publisher | Institute of Electronics Engineers of Korea = 대한전자공학회 | en |
dc.subject | synchronization | en |
dc.subject | frequency selective fading channel | en |
dc.subject | OFDM | en |
dc.title | Robust Synchronization to Frequency Selective Fading Channel in OFDM Systems | en |
dc.title.alternative | 주파수 선택적 페이딩 채널에서 강인한 OFDM 동기 기법 | en |
dc.type | Conference Paper | en |
dc.contributor.AlternativeAuthor | 이진우 | - |
dc.contributor.AlternativeAuthor | 이용환 | - |
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