Robust Beam-Tracking for mmWave Mobile Communications
- Authors
- Jayaprakasam, Suhanya; Ma, Xiaoxue; Choi, Jun Won; Kim, Sunwoo
- Issue Date
- Dec-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Robust beamforming; beam tracking; mmWave; extended Kalman filter; minimum mean squared error beamforming
- Citation
- IEEE COMMUNICATIONS LETTERS, v.21, no.12, pp.2654 - 2657
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE COMMUNICATIONS LETTERS
- Volume
- 21
- Number
- 12
- Start Page
- 2654
- End Page
- 2657
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/18590
- DOI
- 10.1109/LCOMM.2017.2748938
- ISSN
- 1089-7798
- Abstract
- We propose a robust beam-tracking algorithm to maintain the communication link between a base station (BS) and a mobile station (MS) in a millimeter wave mobile communications system, with antenna arrays at both the BS and MS. The channel is tracked with the extended Kalman filter (EKF) at the static BS and the beamforming weight is updated with a robust minimum mean squared error beamformer bounded by the array vector error which is fed from the error variance estimated by the EKF. Results show that our proposed method is able to maintain a link with the MS with a smaller mismatch error compared with existing beamtracking method at moderate MS mobility and antenna array size.
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