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首页> 外文会议>Broadband Multimedia Systems and Broadcasting, 2009. BMSB '09 >Performance evaluation of MIMO-OFDM with signal space diversity over frequency selective channels
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Performance evaluation of MIMO-OFDM with signal space diversity over frequency selective channels

机译：频率选择性信道上具有信号空间分集的MIMO-OFDM性能评估

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摘要

Vertical Bell labs layered space-time (V-BLAST) is known to provide a good tradeoff between performance and complexity for multiple antenna systems. In this paper, an improved scheme which utilizes signal space diversity is proposed for multiple-input multiple-output (MIMO) bit interleaved coded modulation (BICM). The signal space diversity (SSD) has the advantage to increase the diversity order without the expansion of extra bandwidth and power by means of rotating the modulated symbols and interleaving the in-phase and quadrature components separately. BICM combined with the SSD would further enhance the diversity gains. Simulation results show that the proposed scheme is superior to V-BLAST, regardless of the number of antennas and modulation order.
机译：垂直贝尔实验室的分层时空（V-BLAST）可以在多天线系统的性能和复杂性之间提供良好的折衷。本文针对多输入多输出（MIMO）比特交织编码调制（BICM）提出了一种利用信号空间分集的改进方案。信号空间分集（SSD）的优点是，通过旋转调制符号并分别交织同相和正交分量，可以在不增加额外带宽和功率的情况下增加分集阶数。 BICM与SSD的结合将进一步提高多样性。仿真结果表明，无论天线数量和调制阶数如何，该方案均优于V-BLAST。

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