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With the promise of meeting future capacity demands for mobile broadband communications, 3D massive-MIMO/Full Dimension MIMO (FD-MIMO) systems have gained much interest among the researchers in recent years. Apart from the huge spectral efficiency gain offered by the system, the reason for this great interest can also be attributed to significant reduction of latency, simplified multiple access layer,...
Mobile data traffic is expected to have an exponential growth in the future. In order to meet the challenge as well as the form factor limitation at the base station, 2D “Massive MIMO”, combined with OFDM, has been proposed as one of the enabling technologies to significantly increase the spectral efficiency of a broadband wireless system. In 2D broadband MIMO-OFDM systems, a base station will rely...
In this paper, we propose an initial synchronization scheme for time and carrier frequency synchronization and cell identification in 802.16e OFDMA downlink. The proposed method does not require knowledge of actual transmitted preamble, but only utilizes the preamble structure and inverse Fourier transform properties to obtain time/frequency synchronization. Through simulations, we show that the proposed...
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