Abstract

BAZDRESCH, M.; CORTEZ, J.; LONGORIA-GANDARA, O.  and  PARRA-MICHEL, R.. A Family of Hybrid Space-Time Codes for MIMO Wireless Communications. J. appl. res. technol [online]. 2012, vol.10, n.2, pp.122-142. ISSN 2448-6736.

Hybrid MIMO space-time codes combine the benefits of spatial multiplexing with diversity gain to achieve both high spectral efficiency and link reliability. In this paper, we present a family of hybrid codes, known as LD STBC-VBLAST codes, along with a receiver architecture suitable for low-complexity hardware implementation. We show that, under Rayleigh fading, the performance of LD STBC-VBLAST codes is superior to other recently proposed hybrid codes. We also present a technique to derive, from a given propagation scenario, spatially correlated MIMO channel models adequate for space-time coding performance analysis. Using this technique, we evaluate the performance of LD STBC-VBLAST codes under several correlated channels.

Keywords : Linear dispersion codes; hybrid space-time codes; correlated MIMO channel; MIMO systems; sorted QR decomposition.

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