Summary
International Conference on Emerging Technologies for Communications
2023
Session Number:O3
Session:
Number:O3-1
Phase Noise Compensation for Beyond 5G Virtualized Terminal with MIMO
Yasuaki Yuda, Shotaro Maki, Tomohiro Kimura, Akihiko Nishio,
pp.-
Publication Date:2023/11/29
Online ISSN:2188-5079
Summary:
Towards the Beyond 5G/6G, the “virtualized terminal” system is studied. In the virtualized terminal system, a user terminal is connected to multiple surrounding relay devices using SISO with FDM over terahertz radio wave and the relay devices are further connected to a base station using MIMO over millimeter radio wave. In such a high frequency as the millimeter or terahertz radio wave, a phase noise causes a degradation of the link performance. In the virtualized terminal system, the phase noise in the relay devices dominantly impacts on the entire link performance due to the terahertz radio wave. In addition, the phase noise in each relay device is generated independently by each local oscillator. For MIMO, an appropriate phase noise compensation differs depending on whether the dominant phase noise is generated at the transmission side or reception side. In this paper, we investigate the effect of phase noise in the virtualized terminal system with MIMO and propose a compensation method of common phase error caused by the phase noise. According to the simulation results, proposed compensation method improves the BLER performance for both uplink and downlink.