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Effectiveness of Space-Division Multiple-Access in MIMO Communication Systems with Parallel Data Transmission

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Radiophysics and Quantum Electronics Aims and scope

Abstract

We consider multiple-input multiple-output (MIMO) cellular communication systems with antenna arrays at both link ends and data transmission via parallel eigenchannels matched with a random spatial channel. We analyze the effectiveness of the space-division multiple-access (SDMA) method, which does not require estimation of signal-arrival directions and is based on orthogonalization of the parallel channels of all users. We obtained approximate analytical expressions for the mean ratio of the signal power to the noise power and the MIMO system capacity, which are derived for the case of Rayleigh fading of signals. Although the obtained formulas are much simpler than the exact ones, they ensure high accuracy for an arbitrary number of transmitting and receiving antennas and an arbitrary power of transmitter. Our results demonstrate the high effectiveness of the proposed SDMA method.

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  1. N. I. Lobachevsky State University, Nizhny Novgorod, Russia

    V. T. Ermolayev, A. G. Flaksman, I. M. Averin & D. V. Gribov

Authors
  1. V. T. Ermolayev
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  2. A. G. Flaksman
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  3. I. M. Averin
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  4. D. V. Gribov
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Ermolayev, V.T., Flaksman, A.G., Averin, I.M. et al. Effectiveness of Space-Division Multiple-Access in MIMO Communication Systems with Parallel Data Transmission. Radiophysics and Quantum Electronics 47, 129–138 (2004). https://doi.org/10.1023/B:RAQE.0000035694.99846.93

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  • DOI: https://doi.org/10.1023/B:RAQE.0000035694.99846.93

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