Convergence-Enhanced Subspace Channel Estimation for MIMO-OFDM Systems with Virtual Carriers
Sign Up to like & getrecommendations! Published in 2017 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-016-0415-3
Abstract: This paper investigates the convergence-enhanced subspace channel estimation technique for multiple-input–multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems with or without virtual carriers (VCs). Since the perturbations of the correlation matrix and the noise subspace are… read more here.
Keywords: estimation; subspace channel; channel estimation; ofdm systems ... See more keywords
Channel Estimation for Finite Scatterers Massive Multi-User MIMO System
Sign Up to like & getrecommendations! Published in 2017 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-016-0489-y
Abstract: In finite scattering propagation environment, when the number of scatterers is very small compared to the number of base station antennas and users in the cell and if the same scatterers are shared by all… read more here.
Keywords: mimo system; estimation; user mimo; method ... See more keywords
Regularized Recursive Least Square-Based Time Domain Iterative Channel Estimation Scheme for OFDM-IDMA Systems
Sign Up to like & getrecommendations! Published in 2018 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-017-0587-5
Abstract: In the recent time, there have been investigation efforts into time domain channel estimation techniques, exploiting underlying sparseness in OFDM channel, for multiuser-based orthogonal frequency division multiplexing-interleave division multiple access (OFDM-IDMA) systems. This paper developed… read more here.
Keywords: estimator; time; channel estimation; ofdm idma ... See more keywords
FPGA Implementation of OFDM-Based mmWave Indoor Sparse Channel Estimation Using OMP
Sign Up to like & getrecommendations! Published in 2018 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-017-0661-z
Abstract: Due to the sparse multipath characteristic of the channel, millimeter wave (mmWave) channel estimation can be treated as a sparse signal recovery problem. By exploiting the channel sparse characteristics with compressive sensing (CS) theory, sparse… read more here.
Keywords: estimation; estimation using; using omp; ofdm based ... See more keywords
Hybrid Lower-Complexity Wiener Filter for Pilot-Based Channel Estimation for C-RS in LTE-A DL System
Sign Up to like & getrecommendations! Published in 2018 at "Mobile Networks and Applications"
DOI: 10.1007/s11036-017-0964-0
Abstract: This paper presents a pilot-based lower complexity channel estimation for Long Term Evolution Advanced (LTE-A) Cell-specific Reference Signals (C-RS). The proposed system is a hybrid one, based on using 2 × 1-D Wiener filter for… read more here.
Keywords: wiener filter; wiener; complexity; channel estimation ... See more keywords
Wiener-based smoother and predictor for massive-MIMO downlink system under pilot contamination
Sign Up to like & getrecommendations! Published in 2018 at "Telecommunication Systems"
DOI: 10.1007/s11235-017-0341-0
Abstract: One of the challenges in massive-MIMO system is pilot contamination during the channel estimation process. Pilot contamination can cause error or inaccurate channel estimation process for future fifth generation (5G) downlink transmissions. This paper considers… read more here.
Keywords: channel estimation; pilot; pilot contamination; wiener based ... See more keywords
Channel estimation in massive MIMO-based wireless network using spatially correlated channel-based three-dimensional array
Sign Up to like & getrecommendations! Published in 2022 at "Telecommunication Systems"
DOI: 10.1007/s11235-021-00873-z
Abstract: To more benefit from the massive multiple-input multiple-output (M-MIMO) technology for improving the channel estimation (CE) process, each base station (BS) must have accurate channel state information as effectively as possible. In this work, we… read more here.
Keywords: array; arrangement; mimo; channel estimation ... See more keywords
Impact of loop-back interference and channel estimation errors on full-duplex relay networks
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Networks"
DOI: 10.1007/s11276-016-1205-3
Abstract: This paper investigates the rate performance of full-duplex (FD) relay systems under the effect of channel estimation error and residual loop-back interference. The study considers both one-way and two-way amplify and forward (AF) relaying schemes.… read more here.
Keywords: channel estimation; loop back; back interference;
Channel estimation for AF relaying using ML and MAP
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Networks"
DOI: 10.1007/s11276-017-1526-x
Abstract: Channel state information is very important in cooperative communication for performance improvement or signal demodulation. Previous works on channel state information estimation mainly focus on least squares and minimum mean squared error estimators. In this… read more here.
Keywords: estimation; relaying using; individual channel; channel estimation ... See more keywords
Deterministic pilot design for structured sparse channel estimation in MISO systems
Sign Up to like & getrecommendations! Published in 2020 at "Wireless Networks"
DOI: 10.1007/s11276-019-02028-0
Abstract: To reduce the pilot overhead, compressive sensing techniques have been widely adopted for sparse channel estimation. In this paper, we explore the spatial common sparsity across different channels and investigate the deterministic pilot design with… read more here.
Keywords: channel estimation; pilot design; design; pilot ... See more keywords
Time and Frequency Synchronization with Channel Estimation for SC-FDMA Systems Over Time-Varying Channels
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4160-0
Abstract: The constant amplitude zero autocorrelation sequence based synchronization and its usage in the block-type channel estimation for the single carrier frequency division multiple access (SC-FDMA) systems are vulnerable to the time-varying channels. Therefore, the channel… read more here.
Keywords: frequency; channel estimation; fdma systems; time ... See more keywords