Uplink Channel Estimation in WiMAX

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dc.contributor.advisorWu, Minen_US
dc.contributor.authorHo, Kennethen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2008-06-20T05:38:26Z
dc.date.available2008-06-20T05:38:26Z
dc.date.issued2008-05-05en_US
dc.description.abstractWiMAX is an emerging and powerful technology in broadband wireless communications in that it can provide high-speed broadband voice and data ser- vices over distances much greater than Wi-Fi. However, like in any wireless communication system, signal distortion due to channel fading, noise, and Doppler can limit the overall transmission data rate and coverage. To minimize this effect, the receiver must perform channel estimation to remove the effects of the channel. To aid the channel estimation process, known pilot subcarriers are embedded into each OFDM symbol. In this thesis, we will develop and evaluate pilot-assisted channel estimation algorithms for 3 WiMAX modes and features: PUSC (Partial Usage of Subcarriers), AMC (Adaptive Modulation and Coding), and Channel Sounding. Our results show that channel delay spread and signal-to-noise ratio influence the performance of each algorithm and that knowledge of these properties can enhance the system's overall performance.en_US
dc.format.extent11243219 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/8214
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pquncontrolledChannel Estimationen_US
dc.subject.pquncontrolledWiMAXen_US
dc.subject.pquncontrolledOFDMAen_US
dc.subject.pquncontrolledPilot-Assisteden_US
dc.subject.pquncontrolledInterpolationen_US
dc.subject.pquncontrolledWireless MANen_US
dc.titleUplink Channel Estimation in WiMAXen_US
dc.typeThesisen_US

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