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This paper proposes a MIMO 2×2 solution to increase the capacity of HF radio links through the ionospheric channel. A diversity in the transmitted polarizations replaces the classical space diversity and authorizes a compact set up in a context of decametric wavelengths. After a theoretical step of capacity estimation, an HF 2×2 MIMO system has been designed and tested on a 300 km long radio link. The data transfer rate reaches up to 24.09 kbps (in a 4.2 kHz bandwidth) with a good quality of service.
Note: As originally published there was an error in this document. The authors names are incorrectly given as: "Papa Moussa Ndaol;" it should instead have been "Papa Moussa Ndao." The metadata has been updated but the article PDF file remains unchanged.
Date of Conference: 7-9 Nov. 2011