Bandwidth-Scalable Digital Predistortion of Active Phased Array Using Transfer Learning Neural Network

Autor: Feridoon Jalili, Felice Francesco Tafuri, Ole Kiel Jensen, Qingyue Chen, Ming Shen, Gert F. Pedersen

Publikováno v: IEEE Access, Vol 11, Pp 13877-13888 (2023)

This paper proposes a transfer learning neural network (TLNN) approach for digital pre-distortion (DPD) of mm-Wave active phased arrays (APA) operated under variable signal bandwidth regimes. Compared with the conventional artificial neural network (

Externí odkaz: https://doaj.org/article/4f286786be4545849a4127c25ca59d99

Joint Satellite-Transmitter and Ground-Receiver Digital Pre-Distortion for Active Phased Arrays in LEO Satellite Communications

Autor: Qingyue Chen, Zhugang Wang, Gert Frølund Pedersen, Ming Shen

Publikováno v: Remote Sensing, Vol 14, Iss 17, p 4319 (2022)

A novel joint satellite-transmitter and ground-receiver (JSG) digital pre-distortion (DPD) (JSG-DPD) technique is proposed to improve the linearity and power efficiency of the space-borne active phased arrays (APAs) in low Earth orbit (LEO) satellite

Externí odkaz: https://doaj.org/article/57bec775327d4baba1c28bc09cef70e0

Hybrid Digital Pre-Distortion for Active Phased Arrays Subject to Varied Power and Steering Angle

Autor: Yunfeng Li, Yonghui Huang, Qingyue Chen, Feridoon Jalili, Kasper B. Olesen, Jakob G. Brask, Lauge F. Dyring, Gert F. Pedersen, Ming Shen

Publikováno v: Li, Y, Huang, Y, Chen, Q, Jalili, F, Olesen, K B, Gjedsted Brask, J, Føns Dyring, L, Pedersen, G F & Shen, M 2022, ' Hybrid Digital Pre-distortion for Active Phased Arrays Subject to Varied Power and Steering Angle ', I E E E Microwave and Wireless Components Letters, vol. 32, no. 10, pp. 1243-1246 . https://doi.org/10.1109/LMWC.2022.3172215

This letter proposes a memory polynomial (MPM)-aided deep neural network (DNN) digital pre-distortion (MaD-DPD) method for active phased arrays (APAs) subject to varied input power and steering angle. This has been challenging for traditional array l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0abddc17267d39240ae539d7806b0017
https://doi.org/10.1109/lmwc.2022.3172215

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Linearization Trade-Offs in a 5G mmWave Active Phased Array OTA Setup

Autor: Yunfeng Li, Gert Frølund Pedersen, Feridoon Jalili, Felice Francesco Tafuri, Ming Shen, Ole Kiel Jensen

Publikováno v: Jalili, F, Tafuri, F F, Jensen, O K, Li, Y, Shen, M & Pedersen, G F 2020, ' Linearization Trade-Offs in a 5G mmWave Active Phased Array OTA Setup ', IEEE Access, vol. 8, 9116970, pp. 110669-110677 . https://doi.org/10.1109/ACCESS.2020.3002348
IEEE Access, Vol 8, Pp 110669-110677 (2020)

The new generation of 5G mobile communication systems is using millimeter wave (mmWave) active phased arrays (APA) which have up to hundreds of individual analog transmitter and receiver chains and antennas. For these highly integrated systems linear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::075258554d06daabea26dc25b8f1cb1c
https://vbn.aau.dk/da/publications/4c936206-a89e-4c74-a3c1-2d0f63011a05