For the OFDM system, a scheme of combining space-time code with the adaptive power control technology is proposed with simulation results, which increases the diversity gain and the adaptive gain.

对OFDM系统提出将空时编码与自适应功率控制技术相结合，给出了仿真结果，提高了分集增益和自适应增益。

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According to space time block coding based transmitting antenna diversity (STTD) in the WCDMA system, this paper presents a reception scheme based on maximal ratio combining (MRC).

针对WCDMA下行链路空时编码发送分集(STTD)确定了基于最大比合并(mrc)的分集接收方案，并对其进行了性能分析。

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Space-time trellis code combining space diversity with code and modulation, can improve efficiency and reliability of communication system in wireless channel efficiently.

发射端分集、编码和调制结合空时格码，可以有效地提高信号在无线衰落信道中传输的有效性和可靠性；

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