ResumenEn el presente trabajo se presenta una nueva arquitectura para detección de sistemas híbridos MIMO en canales con desvanecimiento Rayleigh. El esquema propuesta consiste de un módulo Alamouti más antenas operando con diversidad espacial en el transmisor. El receptor propuesto está basado en el algoritmo Sorted QR decomposition (SQRD) presentado en (Wubben et al., 2001). Nuestra propuesta disminuye significativamente la complejidad manteniendo las ventajas del esquema SQRD, obteniéndose una considerable ganancia en términos de Tasa deError de Bit (BER), sacrificando una disminución en la tasa de trasmisión. AbstractIn this work, a novel architecture for detection of Hybrid MIMO Systems over Rayleigh fading channels is presented. The Hybrid MIMO scheme consists of one Alamouti space-time block code unit, plus antennas operating as layers of V-BLAST in the transmitter. The proposed receiver is based on the algorithm Sorted QR decomposition (SQRD) presented in (Wubben et al., 2001). This proposal reduces significantly the complexity while maintaining the advantages of the SQRD scheme, obtaining a considerable gain in performance in terms of bit error rate (BER) at the expense of decreasing data rate.
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