期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2018
卷号：6
期号：1
页码：372
DOI：10.15680/IJIRCCE.2017.0601063
出版社：S&S Publications
摘要：Multiple-input, multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is thedominant air interface for 4G and 5G broadband wireless communications. It combines multiple-input, multiple-output(MIMO) technology, which multiplies capacity by transmitting different signals over multiple antennas, and orthogonalfrequency-division multiplexing (OFDM) to meet the all the more requesting client necessities, for example, fastinformation get to and better Quality of Service (QoS). 3GPP standard acquaints handover system with meet the extraclient necessity of taking care of consistent portability crosswise over various cell districts. Amid handover, there is atest to meet the better QoS particularly for constant administrations, for example, voice call. Handover happens all themore every now and again in fast portability. This is additionally the situation when end client is at the edge of the cell.In any case, there are distinctive procedures that exist to consider effective handover to occur without influencing theadministration experienced by the end client. In this paper, The execution pick up of MIMO vigorously relies upon theexact estimation of Channel State Information (CSI), which is pivotal for each interchanges framework. In this paper,we display diverse channel estimation calculations for LTE Downlink frameworks. This incorporates channelestimation utilizing Pilot Symbols and Blind Channel estimation calculations. The estimation strategies included theLeast Square Error (LSE) and the Minimum Mean Square Error (MMSE) is being examined lastly analysed.
