P. Zhang, P. Kyosti, K. Haneda, P. Koivumaki, Y. Lyu and W. Fan, "Out-of-Band Information Aided mmWave/THz Beam Search: A Spatial Channel Similarity Perspective," in IEEE Communications Magazine, doi: 10.1109/MCOM.001.2200398.
Out-of-band information aided mmWave/THz beam search : a spatial channel similarity perspective
|Author:||Zhang, Peize1; Kyösti, Pekka1,2; Haneda, Katsuyuki3;|
1Centre for Wireless Communications, University of Oulu, Finland
2Keysight Technologies Finland, Finland
3Aalto University, Finland
4Aalborg University, Denmark
|Online Access:||PDF Full Text (PDF, 0.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022121972502
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2022-12-19
The transition to higher frequency bands, e.g., millimeter-wave (mmWave) and terahertz (THz), will be capitalized on the long term for future wireless communications. One of challenges relates to rapid establishment of mmWave/THz links with low beam training overhead due to highly directional transmission. A promising solution is to take advantage of the coexistence of sub-6 GHz, mmWave, and THz wireless networks and to use out-of-band spatial information for enabling fast beam search. The success depends on the spatial similarity of radio channels across different frequency bands. In this article we promote a feasibility study of low-frequency spatial channel information assisted high-frequency beam search from a radio channel point of view. We develop multi-band channel similarity measure of desired beam directions extracted from radio channels, which are obtained via filtering propagation paths by different beampatterns at different frequencies. Measurementand ray-tracing-based evaluations across multiple frequencies and environments are performed, which prove the usability of out-of-band information aided beam search strategy in line-ofsight (LOS) dominated scenario and even in non-LOS scenario. Finally, we discuss the challenges associated with exploiting spatial channel similarity.
IEEE communications magazine
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This work has been partly funded by the European Commission through the H2020 project Hexa-X (Grant Agreement no. 101015956) and partly by 6G Flagship programme, funded by Academy of Finland (Grant no. 346208).
|EU Grant Number:||
(101015956) Hexa-X - A flagship for B5G/6G vision and intelligent fabric of technology enablers connecting human, physical, and digital worlds
|Academy of Finland Grant Number:||
346208 (Academy of Finland Funding decision)
© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.