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Optimized Switching Between Sensing and Communication for mmWave MU-MISO Systems
- Issue Date
- May-2022
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- channel sensing duration; Cramer Rao bound (CRB); integrated sensing and communications (ISAC); mm Wave; rate prediction
- Citation
- 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022, pp 498 - 503
- Pages
- 6
- Indexed
- SCOPUS
- Journal Title
- 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022
- Start Page
- 498
- End Page
- 503
- ISSN
- 2164-7038
- Abstract
- In this paper, we propose a scheme optimizing the per-user channel sensing duration in millimeter-wave (mmWave) multi-user multiple-input single-output (MU-MISO) systems. For each user, the BS predicts the effective rate to be achieved after pilot transmission. Then, the channel sensing duration of each user is optimized by ending the pilot transmission when the predicted rate is lower than the current rate. The robust regularized zero-forcing (RRZF) precoder and equal power allocation (EPA) are adopted to transmit sensing pilots and data. Numerical results show that the more severe the interference among users, the longer channel sensing duration is required. Moreover, the proposed scheme results in a higher sum rate compared to benchmark schemes.
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Related Researcher
- Kim, Sunwoo
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)