通信感知一体化的信息理论极限

Yifeng Xiong, Fan Liu*, Weijie Yuan, Yuanhao Cui, Kai Yang, Gang Wu, Qixun Zhang, Zhiqing Wei, Zhiyong Feng, Ping Zhang

*此作品的通讯作者

科研成果: 期刊稿件文献综述同行评审

2 引用 (Scopus)

摘要

Wireless sensing has become an important native capability in next-generation wireless networks (including 6G and Wi-Fi 7) and is widely recognized in the communications industry. Integrated sensing and communications (ISAC) is a promising technology that integrates communication and sensing functionalities into a single wireless system, thereby reducing wireless resource and infrastructure costs and improving communication and sensing subsystem performances. The performance tradeoff between communication and sensing (C&S) is one of the most important fundamental problems of ISAC. This paper argues that performance limits and achievable performance regions are essential techniques for studying C&S tradeoffs. Existing contributions are investigated from four aspects:capacity-distortion theory, C&S performance boundary theory based on mean square error, C&S performance boundary theory based on equivalent sensing rate, and target-detection-oriented C&S performance boundary theory. Moreover, this C&S tradeoff is twofold, comprising the deterministic-random and subspace tradeoffs. As a step further, we discuss the ISAC performance limits based on practical 5G NR frame structures. Finally, representative open problems associated with the information-theoretic limits of ISAC systems are summarized.

投稿的翻译标题Information-theoretic limits of integrated sensing and communications
源语言繁体中文
页(从-至)2057-2086
页数30
期刊Scientia Sinica Informationis
53
11
DOI
出版状态已出版 - 2023

关键词

  • information-theoretic limits
  • integrated sensing and communications
  • sensing
  • the performance tradeoff between communication

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