Analysis of the method of division of spatial channels with successive interference cancellation in modern MIMO-OFDM cellular systems |
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Authors: | A V Davydov A A Mal’tsev |
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Institution: | 1.N. I. Lobachevsky State University of Nizhny Novgorod,Nizhny Novgorod,Russia |
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Abstract: | We consider the problem of parallel data transmission via several spatial channels in modern high-throughput cellular systems
employing the OFDM (Orthogonal Frequency Division Multiplexing) and antenna arrays at both ends of the communication system.
Parallel data transmission in such MIMO (Multiple Input Multiple Output) systems is achieved by using the beamforming schemes
in the transmitter and the special methods of the spatial-channel division in the receiver. Interference immunity of the scheme
of the spatial-channel division by the maximum-likelihood criterion using the method of successive interference cancellation
is analyzed. Probability of implementation of the stage of successive interference cancellation for the case of two spatial
channels and various combinations of the coding schemes and modulations is obtained. We analyze the efficiency of a cellular
communication system using horizontal coding and successive interference cancellation. Practical recommendations on choosing
modulation and the code speed for each spatial channel, which ensure maximum interference immunity of a receiver with successive
interference cancellation, are made. |
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Keywords: | |
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