Throughput Enhancement for MIMO OFDM using Frequency Domain Channel Length Indicator and Guard Interval Adaptation

2006 ◽  
Author(s):  
Marco Krondorf ◽  
Gerhard Fettweis
Keyword(s):  
Frequency Domain ◽  
Channel Length ◽  
Guard Interval ◽  
Throughput Enhancement ◽  
Mimo Ofdm

Frequency-domain equalisation without guard interval for optical transmission systems

2008 ◽  
Vol 44 (25) ◽  
pp. 1480 ◽  
Author(s):  
K. Ishihara ◽  
T. Kobayashi ◽  
R. Kudo ◽  
Y. Takatori ◽  
A. Sano ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Optical Transmission ◽  
Transmission Systems ◽  
Guard Interval ◽  
Optical Transmission Systems

Frequency Domain Variation of Eigenvalues in Adaptive MIMO OFDM Systems

2011 ◽  
Vol 10 (11) ◽  
pp. 3656-3665 ◽  
Author(s):  
Krishna P. Kongara ◽  
Peter J. Smith ◽  
Lee M. Garth
Keyword(s):  
Frequency Domain ◽  
Ofdm Systems ◽  
Domain Variation ◽  
Mimo Ofdm

scholarly journals SBL Kalman Filter Based Hybrid Precoder/ Combiner for mmWave MIMO Systems: A Frequency Domain Approach

2021 ◽  
Author(s):  
Shoukath Ali k ◽  
Sampath Palaniswami
Keyword(s):  
Kalman Filter ◽  
Frequency Domain ◽  
Orthogonal Frequency Division Multiplexing ◽  
Mimo Systems ◽  
Least Square ◽  
Ofdm Systems ◽  
Millimetre Wave ◽  
Minimum Number ◽  
Mimo Ofdm ◽  
Frequency Domain Approach

Abstract The optimal design of hybrid precoder/ combiner for Millimetre Wave (mmWave) Multiple Input and Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM ) system is developed presented. In the frequency domain approach, Sparse Bayesian Learning - Kalman Filter (SBL-KF) algorithm is used to design the optimal hybrid precoder/ combiner in mmWave MIMO OFDM systems. Sparse signal recovery problem for Single Measurement Vector (SMV) is discussed, that is close to the design of ideal digital baseband precoder by maximizing the mutual information from the hybrid precoder. SBL-KF scheme select the minimum number of active Radio Frequency (RF) chains based on the hyper parameter estimator. The minimum number of RF chain is approximate the ideal digital precoder / combiner design. Proposed SBL-KF scheme achieve low power consumption and enhanced spectral efficiency, when compared to the SBL, Orthogonal Matching Pursuit (OMP), Simultaneous OMP (SOMP) and Least Square schemes, which activate a fixed data streams and fixed number of RF chains.

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