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Spectral-Efficient Analog Precoding for Generalized Spatial Modulation Aided Mm Wave MIMO
DOI:10.1109/TVT.2017.2702591.png)
摘要
En 中文
Generalized spatial modulation (GenSM) aided millimeter wave (mmWave) multiple-input multiple-output (MIMO) has recently received substantial academic attention. However, due to the insufficient exploitation of the transmitter's knowledge of the channel state information, the achievable rates of state-of-the-art GenSM-aided mmWave MIMO systems are far from being optimal. Against this background, a novel analog precoding scheme is proposed in this paper to improve the spectral efficiency (SE) of conventional GenSM-aided mmWave MIMOs. More specifically, we firstly manage to lower-bound the achievable SE of GenSM-aided mmWave MIMO with a closed-form expression. Second, by exploiting this lower bound as a cost function, a low-complexity iterative algorithm is proposed to design the analog precoder for SE maximization. Finally, numerical simulations are conducted to substantiate the superior performance of the proposed design with respect to state-of-the-artGenSM-aided mmWave MIMO schemes.
Keyword:
Analog precoding
generalized spatial modulation (GenSM)
millimeter wave (mmWave) communications
multiple-input multiple-output (MIMO)
spectral efficiency (SE)
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期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
引用论文
Energy-Efficient Hybrid Analog and Digital Precoding for MmWave MIMO Systems With Large Antenna Arrays用于具有大型天线阵列的毫米波MIMO系统的节能混合模拟和数字预编码
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