Results 31 to 40 of about 4,199 (203)

Orthogonal Chirp Division Multiplexing

open access: yes, 2016
Chirp waveform plays a significant role in radar and communication systems for its ability of pulse compression and spread spectrum. This paper presents a principle of orthogonally multiplexing a bank of linear chirp waveforms within the same bandwidth ...
Ouyang, Xing, Zhao, Jian
core   +1 more source

PAPR Constrained Power Allocation for Iterative Frequency Domain Multiuser SIMO Detector [PDF]

open access: yes, 2014
Peak to average power ratio (PAPR) constrained power allocation in single carrier multiuser (MU) single-input multiple-output (SIMO) systems with iterative frequency domain (FD) soft cancelation (SC) minimum mean squared error (MMSE) equalization is ...
Karjalainen, Juha   +3 more
core   +2 more sources

Fast Adaptive Blind MMSE Equalizer for Multichannel FIR Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
We propose a new blind minimum mean square error (MMSE) equalization algorithm of noisy multichannel finite impulse response (FIR) systems, that relies only on second-order statistics.
Abed-Meraim Karim   +2 more
doaj   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

A 12-Gbps, 0.24-pJ/b/dB PAM-4 Receiver With Dead-Zone Free SS-MMSE PD for CIS Link

open access: yesIEEE Access, 2023
This paper presents a PAM-4 receiver (RX) for CMOS image sensor (CIS) link. A robust baud-rate PAM-4 phase detector (PD) is proposed, which alleviates the dead zone issue encountered in the conventional sign-sign Mueller-Muller (SS-MM) PD when combined ...
Minkyo Shim   +4 more
doaj   +1 more source

On linear H∞ equalization of communication channels [PDF]

open access: yes, 2000
As an alternative to existing techniques and algorithms, we investigate the merit of the H∞ approach to the linear equalization of communication channels. We first give the formulation of all causal H∞ equalizers using the results of and then look at the
Erdogan, Alper T.   +2 more
core   +1 more source

Evidence for different seeding activities of misfolded tau in classical and rapidly progressive Alzheimer's disease

open access: yesBrain Pathology, Volume 36, Issue 3, May 2026.
The study analyzed the seeding activity of misfolded tau protein in Alzheimer's disease and rapidly progressive Alzheimer's disease patients and provides evidence for the existence of different tau assemblies supported by differences in cellular toxicity and morphology of thioflavin T‐positive real‐time quaking‐induced conversion products.
Matthias Schmitz   +13 more
wiley   +1 more source

Performance analysis and comparison of m x n zero forcing and MMSE equalizer based receiver for mimo wireless channel [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2011
Wireless transmission is affected by fading and interference effects which can be combated with equalizer.The useof MIMO system promises good improvement in terms of spectral efficency,link relaibility andSignal to Noise Ratio (SNR).The effect of fading ...
N. Sathish Kumar, K. R. Shankar Kumar
doaj  

Blind Channel Equalization with Colored Source Based on Constrained Optimization Methods

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
Tsatsanis and Xu have applied the constrained minimum output variance (CMOV) principle to directly blind equalize a linear channel—a technique that has proven effective with white inputs.
Dayong Zhou   +3 more
doaj   +1 more source

FBMC system: an insight into doubly dispersive channel impact [PDF]

open access: yes, 2016
It has been claimed that filter bank multicarrier (FBMC) systems suffer from negligible performance loss caused by moderate dispersive channels in the absence of guard time protection between symbols.
Tafazolli, Rahim   +4 more
core   +1 more source

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