M
Magnus Sandell
Researcher at Alcatel-Lucent
Publications - 42
Citations - 7114
Magnus Sandell is an academic researcher from Alcatel-Lucent. The author has contributed to research in topics: Orthogonal frequency-division multiplexing & Communication channel. The author has an hindex of 16, co-authored 35 publications receiving 6922 citations. Previous affiliations of Magnus Sandell include Luleå University of Technology.
Papers
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Journal ArticleDOI
ML estimation of time and frequency offset in OFDM systems
TL;DR: In this paper, the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator is presented for orthogonal frequency-division multiplexing (OFDM) systems.
Proceedings ArticleDOI
On channel estimation in OFDM systems
TL;DR: The authors present the MMSE and LS estimators and a method for modifications compromising between complexity and performance and the symbol error rate for a 18-QAM system is presented by means of simulation results.
Journal ArticleDOI
OFDM channel estimation by singular value decomposition
TL;DR: The theory of optimal rank-reduction is applied to linear minimum mean-squared error (LMMSE) estimators and it is shown that these estimators, when using a fixed design, are robust to changes in channel correlation and signal-to-noise ratio (SNR).
Journal ArticleDOI
Analysis of DFT-Based Channel Estimators for OFDM
TL;DR: The analysis of three low-complexity channel estimators, based on the discrete Fourier transform (DFT), for orthogonal frequency-division multiplexing (OFDM) systems shows that this type of estimators may experience an irreducible error floor at high SNRs.
Proceedings ArticleDOI
Low-complex frame synchronization in OFDM systems
TL;DR: In this paper, a data-based frame synchronization method for OFDM-systems is presented, based on only the sign bits of the in-phase and the quadrature components of the received OFDM signal, the maximum likelihood solution is derived.