Quadrature Spatial Modulation
Quadrature Spatial Modulation
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DOI：
10.1109/tvt.2014.2344036
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发表时间：
2015-06-01
影响因子：
6.8
通讯作者：
Aggoune, Hadi M.
中科院分区：
文献类型：
--
作者：
Mesleh, Raed;Ikki, Salama S.;Aggoune, Hadi M.
本文提出了一种新的多输入多输出（MIMO）技术称为正交空间调制（QSM）。QSM通过使用额外的调制空间维度来增强传统SM系统的总体吞吐量。当前的SM技术仅使用SM星座的真实的部分，并且本文中所提出的方法将其扩展到同相和正交维度。结果表明，显着的性能增强，可以实现在同步的发射天线的代价。此外，推导了一般QSM系统的成对错误概率（PEP）的封闭式表达式，并用于计算瑞利衰落信道下的平均误比特概率（ABEP）的紧上界。此外，一个简单的和一般的渐近表达式推导和分析。得到的Monte Carlo模拟结果证实了所进行的分析的准确性，并显示所提出的QSM方案的显着增强。
This paper proposes a new multiple-input-multiple-output (MIMO) technique called quadrature spatial modulation (QSM). QSM enhances the overall throughput of conventional SM systems by using an extra modulation spatial dimension. The current SM technique uses only the real part of the SM constellation, and the proposed method in this paper extends this to in-phase and quadrature dimensions. It is shown that significant performance enhancements can be achieved at the expense of synchronizing the transmit antennas. Additionally, a closed-form expression for the pairwise error probability (PEP) of generic QSM system is derived and used to calculate a tight upper bound of the average bit error probability (ABEP) over Rayleigh fading channels. Moreover, a simple and general asymptotic expression is derived and analyzed. Obtained Monte Carlo simulation results corroborate the accuracy of the conducted analysis and show the significant enhancements of the proposed QSM scheme.