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Synthesis of Nonuniform MIMO Arrays Through Combinatorial Sets

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4 Author(s)
Oliveri, G. ; ELEDIA Res. Center @ DISI, Univ. of Trento, Trento, Italy ; Caramanica, F. ; Migliore, M.D. ; Massa, A.

This letter is aimed at investigating a method to design nonuniform multiple-input-multiple-output (MIMO) arrays using an analytical strategy based on almost difference sets (ADSs). Numerical experiments are carried out to compare the properties of the ADS-based layouts with traditional uniform arrangements in terms of achievable capacity and design efficiency. Representative results from a preliminary numerical analysis indicate that the proposed approach enables a significant capacity increase in all considered scattering scenarios. More specifically, larger improvements are yielded in case of poor-scattering environments where the performances of MIMO systems usually worsen.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )