In this letter, we introduce a novel quasi-orthogonal full-rate space-time line code (FR-QSTLC) for an arbitrary number of transmit antennas and four receiver antennas. Its fully analytical examination and the… Click to show full abstract
In this letter, we introduce a novel quasi-orthogonal full-rate space-time line code (FR-QSTLC) for an arbitrary number of transmit antennas and four receiver antennas. Its fully analytical examination and the benchmark of full-rate STLCs are provided, and the results are compared in terms of average bit error ratio (ABER) and diversity gain. Due to its quasi-orthogonal properties, the proposed FR-QSTLC exhibits an asymptotic SNR gain of up to 3 dB compared to its orthogonal two-antenna counterpart and outperforms all the other linearly-decoded full-rate STLCs.
               
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