Traffic-Aware Beam Selection and Resource Allocation for 5G NR

Yu Hsuan Liu, Ching-Ju Lin

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

3GPP has been defining 5G New Radio (NR), a new radio access technology, to enhance flexibility, scalability, and efficiency of 5G networks. An increasing data rate can be achieved by leveraging antenna arrays to adaptively form multiple directional beams and serve geo-distributed user equipments (UEs) concurrently. However, the imperfect beam pattern of an antenna array may create side lobes, leading to inter-user interference. While most recent research focuses on beam selection that mitigates inter-user interference and maximizes the sum rate, we, however, notice that the selected beams may not be fully utilized. The root cause is that only a fixed set of beams can be configured at a time to serve a wide frequency band but some resource blocks (i.e., subcarriers) may not be able to be allocated to any UEs due to limited traffic demands. To address such inefficiency, this paper presents traffic-aware joint beam configuration and resource allocation, which explicitly considers UEs' traffic demands and configures beams that can be optimally utilized in all the RBs (i.e., the operational frequency band). Our simulation results show that our traffic-aware allocation configures beams with better utilization and achieve an effective throughput much higher than conventional maximal capacity configuration.

原文English
主出版物標題2020 IEEE Wireless Communications and Networking Conference, WCNC 2020 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728131061
DOIs
出版狀態Published - 5月 2020
事件2020 IEEE Wireless Communications and Networking Conference, WCNC 2020 - Seoul, Korea, Republic of
持續時間: 25 5月 202028 5月 2020

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
2020-May
ISSN(列印)1525-3511

Conference

Conference2020 IEEE Wireless Communications and Networking Conference, WCNC 2020
國家/地區Korea, Republic of
城市Seoul
期間25/05/2028/05/20

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