Receiver Assisted LBT Mechanism Design for Beam-based Transmission in Unlicensed Bands

Wenxin Wang, Ming Zeng, Zesong Fei

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

In the unlicensed spectrum of 5GHz, Listen-Before-Talk (LBT) technology is used to ensure the fair and friendly coexistence of NR-U (New Radio Unlicensed) and WiFi. However, when signals are transmitted in the mmWave band, the propagation distance is short. Thus, the beamforming technology is used to form a directional narrow beam with high antenna gain, which changes the interference layout, resulting in the limited range of LBT. In this case, to better evaluate the potential interference, the receiver utilizes the useful information received through beam transmission to better manage the interference in the unlicensed mmWave spectrum, which is called receiver-assisted LBT. The performance of the system based on receiver-assisted LBT will be significantly affected by the Energy Detection (ED) threshold of the receiver. Therefore, this paper aims to find the optimal ED threshold of the receiver. We propose the inner approximation algorithm, which can improve the spectral efficiency and the system throughput when multi Radio Access Technologies (RATs) work in the unlicensed mmWave spectrum. The simulation results show the effectiveness of the method.

源语言英语
主期刊名2020 IEEE/CIC International Conference on Communications in China, ICCC 2020
出版商Institute of Electrical and Electronics Engineers Inc.
770-775
页数6
ISBN(电子版)9781728173276
DOI
出版状态已出版 - 9 8月 2020
活动2020 IEEE/CIC International Conference on Communications in China, ICCC 2020 - Chongqing, 中国
期限: 9 8月 202011 8月 2020

出版系列

姓名2020 IEEE/CIC International Conference on Communications in China, ICCC 2020

会议

会议2020 IEEE/CIC International Conference on Communications in China, ICCC 2020
国家/地区中国
Chongqing
时期9/08/2011/08/20

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Wang, W., Zeng, M., & Fei, Z. (2020). Receiver Assisted LBT Mechanism Design for Beam-based Transmission in Unlicensed Bands. 在 2020 IEEE/CIC International Conference on Communications in China, ICCC 2020 (页码 770-775). 文章 9238876 (2020 IEEE/CIC International Conference on Communications in China, ICCC 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCC49849.2020.9238876