alexa Abstract | Channel Estimation Technique for OFDM using an Adaptive Algorithm

American Journal of Computer Science and Information Technology
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Research Article Open Access

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is different from the Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM) techniques because it is one of the Multi Carrier Modulation (MCM) scheme. It is used in the 3G and 4G LTE-A(Long Term Evolution Advanced) to increase the data rate and achieve the high spectral efficiency compared to the other modulation techniques. A time varying environment channel causes the various effects such as fading, interference and noise which causes the declination in the performance of the system. To reduce the above mentioned effects and for proper reception of the transmitted information the process called Channel Estimation becomes necessary in the OFDM systems. The Channel Estimation is a process used to determine the channel parameters depending on the channel conditions using the different parameters. This paper describes the Proposed Channel Parameter Based (CPB) Channel Estimation .

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Author(s): Shruthi M S Sanket N Shettar A V Srikantan

Keywords

OFDM, LTE-A, MCM, CPB

 
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