PAPR Reduction in OFDM-IM Using Multilevel Dither Signals
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2019.2892103
Abstract: Orthogonal frequency division multiplexing with index modulation (OFDM-IM) is a novel multicarrier scheme, which uses the indices of the active subcarriers to transmit data. The OFDM-IM also inherits the high peak-to-average power ratio (PAPR) problem,… read more here.
Keywords: reduction ofdm; dither signals; dither; papr reduction ... See more keywords
Adaptive Optimization With Decaying Periodic Dither Signals
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Automatic Control"
DOI: 10.1109/tac.2022.3149907
Abstract: Real-time optimization in cyber–physical network systems with unknown system parameters must integrate optimization and parameter estimation, leading to adaptive optimization problems. Such problems encounter fundamental conflict between optimization and system identifiability. Recently, a new method… read more here.
Keywords: adaptive optimization; periodic dither; dither; decaying periodic ... See more keywords
Background Calibration for Bit Weights in Pipelined ADCs Using Adaptive Dither Windows
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2020.3038919
Abstract: This brief proposes adaptive dither windows to calibrate bit weights in pipelined analog-to-digital converters (ADCs). It exploits the comparator meta-stability nature to construct dither windows, which avoids doubling the number of the comparators. The dither… read more here.
Keywords: dither windows; dither; bit weights; adaptive dither ... See more keywords