Title
Line-of-Sight Communications with Antenna Misalignments
Abstract
Line-of-sight (LOS) communications are becoming one of the promising use cases in the near future's wireless communications thanks to the potential use of very high carrier frequency, for example tera-hertz band. However, most traditional communication techniques have been developed assuming abundant reflected multipaths, and there is relatively not enough in-depth study regarding LOS communications. Therefore, this paper considers LOS communications from the aspect of antenna misalignments assuming multiple-in multiple-out (MIMO) is available. We propose a communication system that utilizes antenna subarrays for estimating the antenna misalignments and other necessary parameters to achieve the best performance in LOS channels. This information is fed back to the transmitter for deriving the optimal precoder. We exploit multiple techniques for enhancing the estimation performance for stable system performance. The results indicate that the performance with ideal information can be closely achieved with the proposed techniques. The proposed techniques are also shown to be flexibly applicable to any shape of Tx antenna arrays.
Year
DOI
Venue
2021
10.1109/ICC42927.2021.9500295
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2021)
Keywords
DocType
ISSN
Line-of-Sight Communications, Antenna misalignments, 6G wireless communications, Channel capacity, Terahertz communications
Conference
1550-3607
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Jangwook Moon100.34
Hongbing Cheng2807.84
Kee-Bong Song300.34
Jungwon Lee489095.15