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dc.titleAn Adaptive Channel Estimation Scheme for OFDM System with Transmitter Diversity
dc.contributor.authorKuan, K.Y.
dc.contributor.authorSuthaharan, S.
dc.contributor.authorNallanathan, A.
dc.identifier.citationKuan, K.Y.,Suthaharan, S.,Nallanathan, A. (2003). An Adaptive Channel Estimation Scheme for OFDM System with Transmitter Diversity. GLOBECOM - IEEE Global Telecommunications Conference 2 : 873-877. ScholarBank@NUS Repository.
dc.description.abstractIn this paper, an adaptive channel estimation scheme is proposed for space-time block coded orthogonal frequency division multiplexing (ST-OFDM) systems. In this scheme, a computationally efficient decoupled maximum likelihood (DEML) algorithm is used to estimate initial channel parameter values. Once the initial values are obtained, an adaptive algorithm is used to obtain more accurate channel estimate values. It is shown that the proposed channel estimation scheme can eliminate the error floor substantially and perform quite close to the system with perfect channel state information for non-time-selective fading channel. For time-selective fading channels, it has the ability to track the channel adaptively without training symbols.
dc.subjectChannel estimation
dc.subjectFading channels
dc.subjectFrequency selective fading
dc.subjectSpace-time codes
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.sourcetitleGLOBECOM - IEEE Global Telecommunications Conference
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