jurnal- Hybrid Transceiver Schemesfor Spatial

ABSTRAC :

In this article, we present hybrid multiple-input
multiple-output (MIMO) transceiver schemes (HMTS) that
combine transmit diversity and spatial multiplexing, thus
achieving at the same time the two possible spatial gains offered
by MIMO systems. For these transceivers, a modification in the
interference nulling-and-cancelling algorithm used in traditional
MIMO schemes is proposed. We propose a novel MIMO receiver
architecture to cope with the hybrid transmission schemes by
jointly performing the tasks of interference cancellation and
space-time decoding. Both successive and ordered successive
detection strategies are considered in the formulation of the
receivers. Our simulation results show satisfactory performance
of the HMTS when combined with the proposed receivers,
outperforming the standard vertical Bell laboratories layered
space-time system in terms of bit/symbol error rate, while
providing higher spectral efficiencies than a pure space-time
block code system.

Index Terms—MIMO, spatial multiplexing and diversity,
space-time coding, hybrid schemes, interference cancellation.

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