Summary
International Conference on Emerging Technologies for Communications
2023
Session Number:P1
Session:
Number:P1-23
Study on Subarray Beam Allocation for Sub-Terahertz-Band MIMO Spatial Multiplexing in Indoor Office Environments
Naoki Hamada, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane,
pp.-
Publication Date:2023/11/29
Online ISSN:2188-5079
Summary:
For 6G, the use of a sub-Terahertz band is being considered to realize extremely high data-rate communication beyond 100 Gbps. Extremely high data-rate communication requires spatial multiplexing with a MIMO system in addition to the use of wide bandwidth. A MIMO system with hybrid beamformer is practical for the sub-Terahertz-band MIMO spatial multiplexing. The number of layers realized by a MIMO system cannot exceed the number of multipaths. However, in indoor office environments, the number of multipaths in the sub-Terahertz band is reported to be very few. In this paper, we study the effect of spatial multiplexing with a hybrid MIMO system in the sub-Terahertz band and clarify the beam allocation of subarrays to achieve efficient spatial multiplexing. Simulation results revealed that the highest MIMO channel capacity is achieved when a maximum number of three beams are selected.