论文标题
延迟多普勒平面上的多载波调制：通过精细分辨率实现正交性
Multicarrier Modulation on Delay-Doppler Plane: Achieving Orthogonality with Fine Resolutions
论文作者
论文摘要
在本文中，我们研究了在延迟多普勒（DD）平面上的新型多载波（MC）调制的设计，以将调制信号与具有DD分辨率的双重选择通道搭配。 DD平面MC调制设计的主要挑战是，就DD平面的精细分辨率找到了可实现的脉冲正交。为此，我们首先指出可行的DD平面MC调制本质上是一种交错的多音调调制。然后，我们提出了一个正交延迟多普勒除外多路复用（ODDM）调制，并设计相应的发送脉冲。最重要的是，我们证明所提出的发射脉冲相对于DD平面的分辨率是正交的，因此确实存在可实现的DD平面正交脉冲。最后，我们以带外辐射和位错误率来证明所提出的ODDM调制的出色性能。
In this paper, we investigate the design of a novel multicarrier (MC) modulation on delay-Doppler (DD) plane, to couple the modulated signal with a doubly-selective channel having DD resolutions. A key challenge for the design of DD plane MC modulation is to find a realizable pulse orthogonal with respect to the DD plane's fine resolutions. To this end, we first indicate that a feasible DD plane MC modulation is essentially a type of staggered multitone modulation. Then, we propose an orthogonal delay-Doppler division multiplexing (ODDM) modulation, and design the corresponding transmit pulse. Most importantly, we prove that the proposed transmit pulse is orthogonal with respect to the DD plane's resolutions and therefore a realizable DD plane orthogonal pulse does exist. Finally, we demonstrate the superior performance of the proposed ODDM modulation in terms of out-of-band radiation and bit error rate.
