In this paper, we analyze the Bit Error Rate (BER) performance of Golden coded Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system over Rician multipath fading channel. We also compare the performance of the MIMO-OFDM system using Golden code in Rayleigh and Rician multipath fading channels. We discuss the effects of the presence of line-of-sight (LoS) c...

In this paper, the problem of channel estimation for LTE Downlink system in the environment of high mobility presenting non-Gaussian impulse noise interfering with reference signals is faced. The estimation of the frequency selective time varying multipath fading channel is performed by using a channel estimator based on a nonlinear complex Support Vector Machine Regression (SVR) which is appli...

In this paper, the problem of channel estimation for LTE Downlink system in the environment of high mobility presenting non-Gaussian impulse noise interfering with reference signals is faced. The estimation of the frequency selective time varying multipath fading channel is performed by using a channel estimator based on a nonlinear complex Support Vector Machine Regression (SVR) which is appli...

Recently, the use of coherent space-frequency coding in Orthogonal Frequency Division Multiplexing (OFDM)-based frequency-selective multiple-input multipleoutput (MIMO) antenna fading channels has been proposed [1, 2]. Acquiring knowledge of the fading coefficients in a MIMO channel is already very challenging in the flat-fading case. In the frequency-selective case, estimating the MIMO channel...

Abstract This paper develops an MLSE receiver for the frequency-flat, fast fading channel corrupted by additive Gaussian noise, when linear modulations (M-ASK, M-PSK, M-QAM) are employed. The paper extends Ungerboeck’s derivation of the Extended MLSE receiver for the purely frequency-selective channel to the time-selective channel. Although the new receiver’s structure and metric assume ideal c...

Closed-loop power control providing maximum capacity of the multicarrier channel with frequency selective Nakagami fading is investigated. Use of the famous Gallager channel capacity (water-filling) theorem with the assumption of limited transmitter power and independent fading in partial channels leads to the algorithm for their optimal power loading. Analytical expressions for the capacity of...

Orthogonal frequency division multiplexing (OFDM) is a keytechnique for wireless communication because of its robustness for narrow band interference, frequency selective fading and spectral efficiency. Channel estimation and equalization in OFDM is necessary in order to nullify the effect of impairments induced by the frequency selective fading channel. A frequency domain comb typepilot assist...

This paper develops an MLSE receiver for the frequency-flat, fast fading channel corrupted by additive Gaussian noise, when linear modulations (M-ASK, M-PSK, M-QAM) are employed. The paper extends Ungerboeck’s derivation of the Extended MLSE receiver for the purely frequency-selective channel to the time-selective channel. Although the new receiver’s structure and metric assume ideal channel st...

Space-time coding for the flat fading, quasistatic MIMO wireless channel has received wide spread attention. While there has been some effort on code design for the frequency selective environments, the work has mostly been confined to multi-carrier modulation. This paper treats code design for a delay spread channel from a single carrier modulation perspective. We assume a coherent receiver an...