Multicarrier Modulation on Delay-Doppler Plane: Achieving Orthogonality with Fine Resolutions

被引:8
作者
Lin, Hai [1 ]
Yuan, Jinhong [2 ]
机构
[1] Osaka Metropolitan Univ, Sakai, Osaka, Japan
[2] Univ New South Wales, Sydney, NSW 2052, Australia
来源
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2022) | 2022年
关键词
D O I
10.1109/ICC45855.2022.9838684
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
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.
引用
收藏
页码:2417 / 2422
页数:6
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