Space-Time Uplink Transmission in Non-Coherent Systems With Receiver Having Massive Antennas
Space-Time Uplink Transmission in Non-Coherent Systems With Receiver Having Massive Antennas
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DOI：
10.1109/lcomm.2016.2643628
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发表时间：
2017-04
期刊：
影响因子：
--
通讯作者：
Guo Li;Feng-kui Gong
中科院分区：
文献类型：
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作者：
Guo Li;Feng-kui Gong
在这封信中，考虑了一个双天线发射机与具有大量天线的接收机进行通信的上行链路通信场景。我们提出了一种$2\times 2$空时传输方案，该方案不需要发送器或接收器处的瞬时信道状态信息的任何知识。基于非相干最大似然检测器，我们推导了成对错误概率（PEP）性能并分析了其上限和下限，结果表明PEP随着接收天线数量呈指数衰减。此外，还得到了设计发射信号矩阵${\mathbf{S}}$的两个准则，即矩阵${\mathbf{S}}^{H}{\mathbf{S}}$的行列式和迹准则。根据这些标准，我们提出了一种基于 PSK 星座的时空信号设计。最后，通过计算机仿真展示了该设计的工作原理，数值结果验证了接收天线数量较多时上下限的紧密性。
In this letter, an uplink communication scenario in which one dual-antenna transmitter communicates with a receiver having massive antennas is considered. We propose a $2\times 2$ space-time transmission scheme, which does not require any knowledge of instantaneous channel state information at either transmitter or receiver. Based on the non-coherent maximum-likelihood detector, we derive the pairwise error probability (PEP) performance and analyze its upper and lower bounds, which show the PEP decays exponentially with the number of receiving antennas. In addition, two criteria are obtained for designing the transmitting signal matrix ${\mathbf{S}}$ , i.e., the determinant and trace criteria of matrix ${\mathbf{S}}^{H}{\mathbf{S}}$ . With these criteria, we present a space-time signal design based on PSK constellation. Finally, computer simulations are performed to show how this design works, and numerical results validate the tightness of the upper and lower bounds when the number of receiving antennas is large.