Spectrally Efficient OFDMA Lattice Structure via Toroidal Waveforms on the Time-Frequency Plane
Spectrally Efficient OFDMA Lattice Structure via Toroidal Waveforms on the Time-Frequency Plane
复制标题
通过时频平面上的环形波形实现频谱高效的 OFDMA 晶格结构
DOI：
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发表时间：
2010
影响因子：
1.9
通讯作者：
Lutfiye Durak
中科院分区：
文献类型：
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作者：
Sultan Aldirmaz;A. Serbes;Lutfiye Durak
我们研究了频分复用（FDM）信号的性能，其中多个正交厄米高斯载波用于提高带宽效率。在矩形OFDMA系统中，在构成环形波形的单个时间-频率区域中，通过数据集将多个厄米-高斯函数调制为多载波调制方案。与仅使用单个高斯脉冲作为传输基础的传输方案相比，所提出的工作在带宽效率的意义上表现出色。我们研究所提出的方法的理论和仿真结果。
We investigate the performance of frequency division multiplexed (FDM) signals, where multiple orthogonal Hermite-Gaussian carriers are used to increase the bandwidth efficiency. Multiple Hermite-Gaussian functions are modulated by a data set as a multicarrier modulation scheme in a single time-frequency region constituting toroidal waveform in a rectangular OFDMA system. The proposed work outperforms in the sense of bandwidth efficiency compared to the transmission scheme where only single Gaussian pulses are used as the transmission base. We investigate theoretical and simulation results of the proposed methods.