• ANABATHULA RAVALI
• T.SAMMAIAH

A large multi-user scalable multi-input multiple-output (MIMO-MU) Wireless Communications systems, reference to the base station (BS) is made is equipped with a very large In LTE-Advanced (LTE-A) demodulation reference symbols are hired for pilot aided channel estimation to perform coherent detection. Since these reference symbols are allotted at the identical time-frequency positions for all customers in Multi-User MIMO (MU-MIMO) operation or for all spatial layers in Single-User MIMO (SU-MIMO), they're designed to be code-domain orthogonal for you to be separable on the receiver. This orthogonality is received by way of cyclically shifting a reference sign base collection, where the precise cyclic shift values are signaled to each person. In this paintings we show formal equivalence of SU-MIMO and MU-MIMO for LTE-A uplink within the context of channel estimation. We propose a general compliant mapping that assigns cyclic shifts to customers such that SU-MIMO estimation methods are relevant additionally for MU-MIMO transmissions. Further we show the trade-off among the quantity of active users and the channel’s frequency selectivity in MU-MIMO operation due to the residual channel estimation errors

AN IMPLEMENTATION OF ADAPTIVE CLASSIFICATION INVESTIGATION FOR CHANNEL ESTIMATION IN MU-MIMO

"AN IMPLEMENTATION OF ADAPTIVE CLASSIFICATION INVESTIGATION FOR CHANNEL ESTIMATION IN MU-MIMO", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.511-517, October-2018, Available :http://www.jetir.org/papers/JETIR1810976.pdf

"AN IMPLEMENTATION OF ADAPTIVE CLASSIFICATION INVESTIGATION FOR CHANNEL ESTIMATION IN MU-MIMO", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp511-517, October-2018, Available at : http://www.jetir.org/papers/JETIR1810976.pdf