Software-Defined Optoelectronics: Space and Frequency Diversity in Heterodyne Interferometry
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2018.2842143
Abstract: In this paper, a general architecture for the implementation of software-defined optoelectronic systems is described. This concept harnesses the flexibility of software-defined hardware to implement optoelectronic systems which can be configured to adapt to multiple… read more here.
Keywords: space frequency; software defined; frequency diversity; software ... See more keywords
Generalized Quadrature Space-Frequency Index Modulation System With Low-Complexity Detection
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Systems Journal"
DOI: 10.1109/jsyst.2022.3146146
Abstract: In this article, we propose a generalized quadrature space-frequency index modulation (GQSFIM) system that maps the information bits to the subcarrier activation pattern (SAP), the two antenna activation patterns (AAPs), and the modulated symbols. Specifically,… read more here.
Keywords: system; space frequency; detection; index modulation ... See more keywords
Diagonal and Alamouti Space-Frequency Coded Quadrature Index Modulation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3137852
Abstract: In this letter, a new diagonal and Alamouti space-frequency coded quadrature index modulation (DASFC-QIM) scheme for MIMO-OFDM systems is proposed to achieve higher transmit diversity. In the proposed DASFC-QIM scheme, firstly two modulated symbols are… read more here.
Keywords: quadrature; alamouti space; diagonal alamouti; space ... See more keywords
Efficient Synthesis of Filter-and-Sum Array With Scanned Wideband Frequency-Invariant Beam Pattern and Space-Frequency Notching
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2021.3053489
Abstract: This work generalizes the Fourier transform (FT)-based frequency-invariant beamforming (FIB) method to the synthesis of scanned frequency-invariant (FI) beam pattern with space-frequency notching for an array with non-isotropic elements. Wideband FI pattern characteristics are described… read more here.
Keywords: invariant beam; beam pattern; space frequency; frequency invariant ... See more keywords
Space-Frequency Parallel Transmitter Diversity Techniques for Three Pre-Coded OFDM Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2017.2787105
Abstract: This brief presents three space-frequency (SF) pre-coded orthogonal frequency division multiplexing (OFDM) systems to combat inter-carrier interference in mobile fading channels without knowing the channel state information at the transmitter. First, a $2{\times }1$ SF… read more here.
Keywords: three pre; pre coded; pre; ofdm systems ... See more keywords
Priori-Aided Detection for Generalized Space-and-Frequency Index Modulation Systems With Multi-Carrier Frequency Offset
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2019.2937674
Abstract: In this paper, two priori-aided detectors are proposed for generalized space-and-frequency index modulation (GSFIM) systems with the objective of mitigating the effect of the multi-carrier frequency offset (CFO). Specifically, based on the priori information, the… read more here.
Keywords: space frequency; frequency; generalized space; frequency index ... See more keywords