D-MSSTC를 이용한 MIMO-ARQ에 관한 연구

초록

We proposed a multi-input multi-output automatic repeat request (MIMO-ARQ) scheme using double multi-strata space–time code (D-MSSTC) for high spectral efficiency in MIMO systems. To improve error performance of the proposed scheme, we allocate power and phase to each layer of MSSTC over every transmission. Additionally, we suboptimally optimize power allocation to maximize the minimum coding gain distance of D-MSSTC and phase allocation to efficiently minimize inter-layer interference in MSSTC. In simulation results, it is observed that the proposed MIMO-ARQ scheme based on D-MSSTC shows better block error rate (BLER) performance than conventional schemes.

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