High-Rate and Low-Complexity Space-Time Block Codes for MIMO Systems

V Vakilian, H Mehrpouyan - IEEE communications Letters, 2016 - ieeexplore.ieee.org
IEEE communications Letters, 2016ieeexplore.ieee.org
The main design criteria for space-time block codes (STBCs) are the code rate, diversity
order, coding gain, and low decoder complexity. In this letter, we propose a full-rate full-
diversity STBC for 2× 2 multiple-input multiple-output (MIMO) systems with a substantially
lower maximum likelihood (ML) detection complexity than that of existing schemes. This
makes the implementation of high-performance full-rate codes feasible for practical systems.
Our numerical evaluation shows that the proposed code achieves significantly lower …
The main design criteria for space-time block codes (STBCs) are the code rate, diversity order, coding gain, and low decoder complexity. In this letter, we propose a full-rate full-diversity STBC for 2 × 2 multiple-input multiple-output (MIMO) systems with a substantially lower maximum likelihood (ML) detection complexity than that of existing schemes. This makes the implementation of high-performance full-rate codes feasible for practical systems. Our numerical evaluation shows that the proposed code achieves significantly lower decoding complexity while maintaining a similar performance compared to that of existing rate-2 STBCs.
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