University of Oulu

W. Fan, F. Zhang, P. Kyösti, L. Hentilä and G. F. Pedersen, "Wireless Cable Method for High-Order MIMO Terminals Based on Particle Swarm Optimization Algorithm," in IEEE Transactions on Antennas and Propagation, vol. 66, no. 10, pp. 5536-5545, Oct. 2018. doi: 10.1109/TAP.2018.2858193

Wireless cable method for high-order MIMO terminals based on particle swarm optimization algorithm

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Author: Fan, Wei1; Zhang, Fengchun1; Kyösti, Pekka2,3;
Organizations: 1Department of Electronic Systems, Antennas, Propagation and Millimeter-Wave Systems Section, Aalborg University
2Keysight Technologies Finland Oy
3Centre for Wireless Communications, University of Oulu
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2018-11-02


Conducted cable setups have been dominantly utilized in the industry for performance testing of multiple-input multiple-output (MIMO) terminals. The wireless cable method, which can achieve cable connection functionality without actual radio frequency cable connections, is a promising alternative. To date, the wireless method has been only discussed for 2 × 2 MIMO terminals in the literature. However, the algorithm is not directly applicable for high-order MIMO terminals, due to the high computation complexity to determine the calibration matrix and high system cost to implement the calibration matrix. In this paper, an efficient particle swarm optimization (PSO) algorithm is proposed to determine the calibration matrix for high-order MIMO systems. Furthermore, a novel implementation of the calibration matrix in the radio channel emulator is proposed, which can significantly reduce the system cost. To validate the proposed algorithm, two MIMO mockups, each equipped with four antennas, were measured in an anechoic chamber. The measured results demonstrated the effectiveness of the PSO algorithm to establish wireless cable connections for 4×4 MIMO terminals.

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Series: IEEE transactions on antennas and propagation
ISSN: 0018-926X
ISSN-E: 1558-2221
ISSN-L: 0018-926X
Volume: 66
Issue: 10
Pages: 5536 - 5545
DOI: 10.1109/TAP.2018.2858193
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
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