论文标题
坐标交错的速度比尼奎斯特信号更快
Coordinate Interleaved Faster-than-Nyquist Signaling
论文作者
论文摘要
比Ynyquist（FTN）信号更快是一种有吸引力的传输技术，它可以加速超出Nyquist速率的数据符号以提高光谱效率。但是，以较高的计算复杂性为代价去除引入的符号间干扰（ISI）。在这项工作中，我们引入了一种新颖的FTN信号传输技术，该技术称为坐标交错FTN（CI-FTN）信号，该信号利用发射机处的ISI对每对逆时针旋转的二进制二进制相移键（BPSK）数据符号产生建设性干扰。特别是，提出的CI-FTN信号传递了逆时针旋转的BPSK符号的同相（i）和正交（q）组件，以确保每对连续的符号都具有相同的符号，因此具有建设性的ISI。在接收器上，我们提出了一个低复杂性检测器，该检测器利用发射器引入的建设性ISI。仿真结果表明，与常规的Nyquist和FTN信号相比，CI-FTN信号传导的优点以及提出的低复杂性检测器。
Faster-than-Nyquist (FTN) signaling is an attractive transmission technique which accelerates data symbols beyond the Nyquist rate to improve the spectral efficiency; however, at the expense of higher computational complexity to remove the introduced intersymbol interference (ISI). In this work, we introduce a novel FTN signaling transmission technique, named coordinate interleaved FTN (CI-FTN) signaling that exploits the ISI at the transmitter to generate constructive interference for every pair of the counter-clockwise rotated binary phase shift keying (BPSK) data symbols. In particular, the proposed CI- FTN signaling interleaves the in-phase (I) and the quadrature (Q) components of the counter-clockwise rotated BPSK symbols to guarantee that every pair of consecutive symbols has the same sign, and hence, has constructive ISI. At the receiver, we propose a low-complexity detector that makes use of the constructive ISI introduced at the transmitter. Simulation results show the merits of the CI-FTN signaling and the proposed low-complexity detector compared to conventional Nyquist and FTN signaling.
