Polynomial based Channel Estimation Technique with Sliding Window for M-QAM Systems

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dc.contributor.authorOgundile, O. O.
dc.contributor.authorOloyede, M. O.
dc.contributor.authorAina, F. A.
dc.contributor.authorOyewobi, S. S.
dc.date.accessioned2019-10-31T13:18:08Z
dc.date.available2019-10-31T13:18:08Z
dc.date.issued2016
dc.description.abstractPilot Symbol Assisted Modulation (PSAM) channel estimation techniques over Rayleigh fading channels have been analysed in recent years. Fluctuations in the Rayleigh fading channel gain degrades the performance of any modulation scheme. This paper develops and analyses a PSAM Polynomial interpolation technique based on Least Square (LS ) approximations to estimate the Channel State Information (CSI) for M-ary Quadrature Amplitude Modulation (M-QAM) over flat Rayleigh fading channels. A Sliding window approach with pilot symbol adjustment is employed in order to minimize the computational time complexity of the estimation technique. The channel estimation performance, and its computational delay and time complexity is verified for di erent Doppler frequencies ( fd), frame lengths (L), and Polynomial orders (P-orders). Simulation results show that the Cubic Polynomial interpolation gives superior Symbol Error Rate (SER) performance than the Quadratic Polynomial interpolation and higher P-orders, and the performance of the Polynomial estimation techniques degrade with increase in the P-orders.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3276
dc.language.isoenen_US
dc.publisher(IJACSA) International Journal of Advanced Computer Science and Applicationsen_US
dc.subjectChannel estimationen_US
dc.subjectDoppler frequencyen_US
dc.subjectFrame lengthen_US
dc.subjectInterpolationen_US
dc.subjectPolynomial orderen_US
dc.titlePolynomial based Channel Estimation Technique with Sliding Window for M-QAM Systemsen_US
dc.typeArticleen_US

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