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arXiv 2103.04976cs.ITmath.IT
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和秩空时码

Space-Time Codes from Sum-Rank Codes

Mohannad Shehadeh, Frank R. Kschischang

摘要:

正如秩度量或Gabidulin码可用于构造速率分集折衷最优空时码,最近引入的秩和度量的推广-线性化Reed-Solomon码-在多个衰落块的情况下实现相同。在本文中,我们提供了第一个明确的最小延迟率分集最佳多块空时码的线性化Reed-Solomon码的应用。我们还提供了这些代码的顺序解码器,更一般地说,从有限域码构造的空时码。仿真结果表明,所提出的码可以在低信噪比下优于基于循环划分代数的全分集码,以及利用显着更小的星座。

英文摘要:

Just as rank-metric or Gabidulin codes may be used to construct rate-diversity tradeoff optimal space-time codes, a recently introduced generalization for the sum-rank metric -- linearized Reed-Solomon codes -- accomplishes the same in the case of multiple fading blocks. In this paper, we provide the first explicit construction of minimal delay rate-diversity optimal multiblock space-time codes as an application of linearized Reed-Solomon codes. We also provide sequential decoders for these codes and, more generally, space-time codes constructed from finite field codes. Simulation results show that the proposed codes can outperform full diversity codes based on cyclic division algebras at low SNRs as well as utilize significantly smaller constellations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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