A Unified Multicarrier Waveform Framework for Next-generation Wireless Networks: Principles, Performance, and Challenges
Xingyao Zhang, Haoran Yin, Yanqun Tang, Yao Ge, Yong Zeng, Miaowen Wen, Zilong Liu, Yong Liang Guan, H\"useyin Arslan, and Giuseppe Caire

TL;DR
This paper introduces a comprehensive framework for multicarrier waveforms tailored for 6G networks, analyzing their principles, performance, and suitability under diverse channel conditions to guide future standardization.
Contribution
It systematically characterizes and compares state-of-the-art multicarrier waveforms, providing practical guidelines for waveform selection in next-generation wireless networks.
Findings
Different waveforms exhibit unique resilience to channel interference.
Performance metrics vary significantly across waveforms in different scenarios.
The framework aids in selecting optimal waveforms for 6G applications.
Abstract
Next-generation wireless networks require enhanced flexibility, efficiency, and reliability in physical layer waveform design to address the challenges posed by heterogeneous channel conditions and stringent quality-of-service demands. To this end, this paper proposes a unified multicarrier waveform framework that provides a systematic characterization and practical implementation guidelines to facilitate waveform selection for the sixth-generation (6G) mobile networks and beyond. We commence by examining the design principles of the state-of-the-art waveforms, which are categorized into one-dimensional modulation waveforms (e.g., orthogonal frequency division multiplexing (OFDM) and affine frequency division multiplexing (AFDM)) and two-dimensional modulation waveforms (e.g., orthogonal time frequency space (OTFS)). Their inherent resilience against various channel-induced interference…
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Taxonomy
TopicsPAPR reduction in OFDM · Advanced Wireless Communication Techniques · Advanced Wireless Network Optimization
