dc.contributor.author | Goswami, Madhuprana | |
dc.contributor.author | Kwon, Hyuck M. | |
dc.contributor.author | Pham, Khanh D. | |
dc.contributor.author | Lyke, James | |
dc.date.accessioned | 2019-05-27T02:52:45Z | |
dc.date.available | 2019-05-27T02:52:45Z | |
dc.date.issued | 2019-04-11 | |
dc.identifier.citation | M. Goswami, H. M. Kwon, K. Pham and J. Lyke, "Satellite MIMO Digital Beam-forming under Nonlinear High-Power Amplifier and Keyhole," 2019 International Conference on Computing, Networking and Communications (ICNC), Honolulu, HI, USA, 2019, pp. 313-317 | en_US |
dc.identifier.isbn | 978-153869223-3 | |
dc.identifier.issn | 2325-2626 | |
dc.identifier.uri | https://doi.org/10.1109/ICCNC.2019.8685669 | |
dc.identifier.uri | http://hdl.handle.net/10057/16312 | |
dc.description | Click on the DOI link to access the article (may not be free). | en_US |
dc.description.abstract | In a satellite communication (Sat-Com) system, channel coefficients from multiple-input, multiple-output (MIMO) antennas are correlated strongly because of a long propagation distance and a narrow angle spread. This is referred to as a keyhole (KH) channel, which results in a rank deficiency in the MIMO channel and a reduction in the number of simultaneously supportable multiple-access users. In addition, a high-power amplifier (HPA) in a satellite transponder distorts the transmitted signal due to its nonlinearity and memory. The aim of this paper is to study a satellite beamforming (BF) method and to investigate its signal-to-interference-plus-noise ratio (SINR) degradation due to the KH and HPA nonlinearity effects. A closed form of an optimum BF vector is not available due to HPA nonlinearity and memory, and a BF vector with simple complexity is desirable in practice. Therefore, this paper proposes a satellite transponder that uses column vectors from a discrete Fourier transform (DFT) matrix as precoding BF vectors in order for multiple ground terminals to meet their SINR demands. | en_US |
dc.description.sponsorship | 2018 U.S. Air Force Summer Faculty Fellowship Program, Air Force Research Laboratory Grants FA9453-18-1-0102 and FA9453-17-1-0020. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IEEE | en_US |
dc.relation.ispartofseries | 2019 International Conference on Computing, Networking and Communications (ICNC); | |
dc.subject | Beamforming | en_US |
dc.subject | Discrete Fourier transform | en_US |
dc.subject | High-power amplifier | en_US |
dc.subject | Keyhole channel | en_US |
dc.subject | Maximal ratio combining | en_US |
dc.subject | Multiple-input | en_US |
dc.subject | Multiple-output | en_US |
dc.title | Satellite MIMO digital beam-forming under nonlinear high-power amplifier and keyhole | en_US |
dc.type | Conference paper | en_US |
dc.rights.holder | © 2019 IEEE. | en_US |