Full metadata record
DC FieldValueLanguage
dc.contributor.author趙必昌en_US
dc.contributor.authorChao, Pi-Chungen_US
dc.contributor.author伍紹勳en_US
dc.contributor.authorWu, Sau-Hsuanen_US
dc.date.accessioned2014-12-12T03:03:55Z-
dc.date.available2014-12-12T03:03:55Z-
dc.date.issued2008en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT009413540en_US
dc.identifier.urihttp://hdl.handle.net/11536/80804-
dc.description.abstract一個在雷利衰減通道下使用非同調低密度同位元解碼的結合通道估測,信號偵測與通道解碼之 遞迴式接收器系統在本研究中被提出. 本遞迴式系統之非同調演算法可以在不使用任何領航信號與訓練信號的情況下達成通道估測與信號偵測的實現. 此系統之效能將會在平緩衰減通道與頻率選擇性衰減通道下被研究討論. 在平緩衰減通道下, 模擬結果顯示使用本非同調演算法之遞迴式系統的效能與假設理想通道已知之遞迴式系統的效能約僅較差0.5分貝. 此結果與使用外部資訊轉移曲線分析之結果一致. 然而在多重衰減的通道下, 使用本演算法與假設理想通道已知的遞迴式系統之效能比仍有不小的差距, 需要未來更近一步的研究討論.zh_TW
dc.description.abstractAn iterative receiver structure for joint channel estimation, symbol detection and channel decoding is proposed for the non-coherent decoding of the low-density parity check code in Rayleigh fading channels. Performance of the proposed algorithm is studied for both the flat and frequency-selective fading channels without using any pilot or training symbol. In flat fading channels, simulation results show that the performance of the non-coherent algorithm is only half decibel inferior to the coherent one, which matches the analysis using extrinsic information transfer chart, while in multiple fading channels, the performance gap against the coherent one is still large, which requires further investigations.en_US
dc.language.isozh_TWen_US
dc.subject通道估測zh_TW
dc.subject低密度同位元檢查碼zh_TW
dc.subject遞迴式系統zh_TW
dc.subject外部資訊轉移曲線zh_TW
dc.subjectchannel estimationen_US
dc.subjectlow-density parity check codesen_US
dc.subjectiterative systemen_US
dc.subjectextrinsic information transfer charten_US
dc.title在時變衰減通道下的結合通道估測與信號偵測演算法和低密度同位元檢查碼之遞迴系統zh_TW
dc.titleJoint Channel Estimation, Symbol Detection and LDPC Decoding in Time-Varying Fading Channelsen_US
dc.typeThesisen_US
dc.contributor.department電信工程研究所zh_TW
Appears in Collections:Thesis


Files in This Item:

  1. 354001.pdf