Integrated Sensing and Communication in 6G: Motivations, Use Cases, Requirements, Challenges and Future Directions

By D. Tan, Jia He, Yanchun Li, A. Bayesteh, Yan Chen, Peiying Zhu, W. Tong. International Symposium on Joint Communications & Sensing, 2021

391 citations recorded by the source corpus.

In 6G, it is envisaged that the function of sensing and communication will coexist and be fully integrated in one system, sharing the same resources in time, frequency and space domains, as well as key elements including waveform, signal processing, hardware, etc. This paper discusses novel applications, key performance requirements, challenges and future research directions for Integrated Sensing and Communication (ISAC) design in 6G. First, four categories of ISAC use cases are described as new services in 6G together with their corresponding performance requirements on 6G design. In addition, it is demonstrated how the information obtained through sensing can significantly improve the performance of communication. Thereafter, the challenges in the design and evaluation of a practical ISAC system are discussed, including sensing and communication performance tradeoffs, hardware imperfections, as well as the investigation of an appropriate channel model. Finally, future research directions are presented to set the path for designing an efficient ISAC network.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/1f85b9a71fd8257cea4732daebd0940944c0db2a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. Jie Xu
2. Rui Zhang
3. Qingqing Wu
4. Fan Liu
5. Christos Masouros
6. Yonina C. Eldar
7. Yuanhao Cui
8. Weijie Yuan

Citations in the corpus

• Integrated Sensing and Communications: Toward Dual-Functional Wireless Networks for 6G and Beyond (2021, methodology): “method, but also as a basic service provided to a vast number of users [41].”
• Integrated Sensing and Communication Signals Toward 5G-A and 6G: A Survey (2023, methodology): “[25] proposed four typical use cases of ISAC, where the requirements of these use cases are analyzed in detail.”
• Throughput Maximization for UAV-Enabled Integrated Periodic Sensing and Communication (2022, background): “In the industry, ISAC is regarded as a key technology in Huawei and Nokia for future wireless network investigations [13], [14]; “Hexa-X” project”
• Optimal Transmit Beamforming for Integrated Sensing and Communication (2021, neutral): “In the industry, Huawei and Nokia envisioned ISAC as one of the key technologies for 6G [19], [22], and IEEE 802.”
• Integrated Sensing and Communications: Recent Advances and Ten Open Challenges (2023, background): “As evidenced by more and more emerging 6G white papers and WiFi 7 papers, ISAC has drawn significant attention from major industrial enterprises, and its standardization is also under discussion in 3GPP [187], [188].”