Algebraic multiuser space-time block codes for 2 × 2 MIMO
نویسندگان
چکیده
In this paper, we consider multiuser space-time block codes (STBCs) for 2 × 2 multiple–input multiple–output (MIMO) uplink transmissions. Using a truncated union–bound (UB) approximation, we propose design criteria of multiuser STBCs for quasi-static fading MIMO multiple access channels (MACs). Next, we demonstrate how, by combining the structure of algebraic perfect STBCs in [10], a family of multiuser STBCs can be constructed to fulfill the design criteria, and show that the proposed STBC outperforms all previously known codes over quasi-static fading MIMO MACs.
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