Results 21 to 30 of about 1,321,155 (184)
Estimating divergence dates from molecular sequences [PDF]
Molecular Biology and Evolution, 1998 The ability to date the time of divergence between lineages using molecular data provides the opportunity to answer many important questions in evolutionary biology. However, molecular dating techniques have previously been criticized for failing to adequately account for variation in the rate of molecular evolution.
A, Rambaut, L, Bromham
openaire +2 more sources
IET Communications, 2023 This paper studies the problem of spatially correlated channel estimation for reconfigurable intelligent surface (RIS)‐assisted multiple‐input multiple‐output (MIMO) systems with arbitrarily correlated Gaussian perturbation.
Changjian Qin, Pinchang Zhang, Ji He
doaj +1 more source
Hierarchical Sequence Compaction For Power Estimation [PDF]
Proceedings of the 34th Design Automation Conference, 1997 This paper presents an effective technique forcompacting a large sequence of input vectors into a muchsmaller one such that when the two sequences are applied toany circuit, the resulting power dissipations are nearly thesame. Specifically, this paper introduces the hierarchicalmodeling of Markov chains as a flexible framework forcapturing not only ...
Radu Marculescu +2 more
openaire +1 more source
Low-Complexity Detection of High-Order QAM Faster-Than-Nyquist Signaling
IEEE Access, 2017 Faster-than-Nyquist (FTN) signaling is a promising non-orthogonal transmission technique to considerably improve the spectral efficiency. This paper presents the first attempt in the literature to estimate the transmit data symbols of any high-order ...
Ebrahim Bedeer +2 more
doaj +1 more source
IEEE Access, 2017 In this paper, we investigate the sequence estimation problem of binary and quadrature phase shift keying faster-than-Nyquist (FTN) signaling and propose two novel low-complexity sequence estimation techniques based on concepts of successive interference
Ebrahim Bedeer +2 more
doaj +1 more source
Feedback reliability calculation for an iterative block decision feedback equalier [PDF]
, 2009 A new class of iterative block decision feedback equalizer (IB-DFE) was pioneered by Chan and Benvenuto. Unlike the conventional DFE, the IB-DFE is optimized according to the reliability of the feedback (FB) symbols.
Armour, SMD, Huang, G, Nix, AR
core +2 more sources
IEEE Photonics Journal, 2022 In this paper, a symmetric training sequence-based (STSB) carrier frequency offset estimation (FOE) scheme for coherent free-space optical (CFSO) communication is proposed.
Xinyu Tang +4 more
doaj +1 more source
Dianzi Jishu Yingyong, 2019 An improved timing and frequency synchronization algorithm based on Zadoff-Chu(ZC) sequence for OFDM system is proposed. The algorithm constructs a training sequence with conjugate repetition relationship. Firstly, the timing synchronization is completed
Chen Ying, Nie Wei
doaj +1 more source
Reliable camera motion estimation from compressed MPEG videos using machine learning approach [PDF]
, 2013 As an important feature in characterizing video content, camera motion has been widely applied in various multimedia and computer vision applications. A novel method for fast and reliable estimation of camera motion from MPEG videos is proposed, using ...
Jiang, Jianmin +4 more
core +1 more source
Vehicle Travel Time Estimation Using Sequence Prediction
Promet (Zagreb), 2020 This paper proposes a region-based travel time and traffic speed prediction method using sequence prediction. Floating Car Data collected from 8,317 vehicles during 34 days are used for evaluation purposes.
Gültekin Gündüz, Tankut Acarman
doaj +1 more source