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frequency domain channel estimation

Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix

Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix

... UWB channel models so as com- parisons are possible for the performance of the proposed receiver for different ...CM1 channel with full CP (no IBI) and perfect channel impulse response are also ...

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Training sequence based frequency domain channel estimation for indoor diffuse wireless optical communications

Training sequence based frequency domain channel estimation for indoor diffuse wireless optical communications

... TS-based channel estimation in FD for indoor WOC ...three channel estimation methods, such as the LS method, the MMSE method and the ORL-MMSE method are ...FD channel estima- ...the ...

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Single channel speech separation in modulation frequency domain based on a novel pitch range estimation method

Single channel speech separation in modulation frequency domain based on a novel pitch range estimation method

... single channel speech separation sys- tem is proposed that estimates the pitch range of one or two speakers and segregates the target speech from the ...pitch frequency estima- tion encounter large errors ...

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Frequency domain concurrent channel equalization for multicarrier systems

Frequency domain concurrent channel equalization for multicarrier systems

... new channel compensation technique presented in this article is based on the CE algorithm, which is a concurrent time direction adaptive algorithm briefly described in the introduction section of this ...the ...

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Channel Frequency Response Estimation for MIMO Systems with Frequency-Domain Equalization

Channel Frequency Response Estimation for MIMO Systems with Frequency-Domain Equalization

... single-carrier frequency-domain equalization (SC-FDE), an effective technique to mitigate the distortion induced by long-spanning intersymbol interference has seen a surge of interest in the research ...the ...

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Cyclic Prefix Based Channel Estimation of Single Carrier   Frequency Domain Equalization

Cyclic Prefix Based Channel Estimation of Single Carrier Frequency Domain Equalization

... Fig 2 shows that data bits from signal source are encoded, interleaved and modulated. After modulation, it passes through the Multipath channel. Due to the multipath channel there is some inter- symbol ...

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Optimal Superimposed Training Sequences for Channel Estimation in MIMO-OFDM Systems

Optimal Superimposed Training Sequences for Channel Estimation in MIMO-OFDM Systems

... time domain Least Squares (LS) based channel estimation method using superimposed training (ST) for a Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) ...

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Block Transmissions over Doubly Selective Channels: Iterative Channel Estimation and Turbo Equalization

Block Transmissions over Doubly Selective Channels: Iterative Channel Estimation and Turbo Equalization

... iterative frequency-domain block turbo equalizer for SC systems with average approximation, for both perfect and estimated ...considered channel has a uniform power- delay profile, it generates ...

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Sparse massive MIMO OFDM channel estimation based on compressed sensing over frequency offset environment

Sparse massive MIMO OFDM channel estimation based on compressed sensing over frequency offset environment

... CS channel estimation based on partial channel support (PCS) became a research ...of channel delay and path ...CS-based channel esti- mation method for MIMO-OFDM by simultaneously ...

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Semiblind frequency-domain timing synchronization and channel estimation for OFDM systems

Semiblind frequency-domain timing synchronization and channel estimation for OFDM systems

... In this article, we have developed a semiblind timing syn- chronization and channel estimation scheme for OFDM systems based on unit vectors. We also developed a fine time adjustment algorithm to find the ...

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Time-Frequency Training OFDM: A Novel Technique

Time-Frequency Training OFDM: A Novel Technique

... fading channel at the cost of performance loss, the Time Domain Synchronous Orthogonal Frequency Division Multiplexing (TDS-OFDM) is a novel ...Orthogonal Frequency Division Multiplexing ...

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Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm

Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm

... Radio Frequency (RF) ...16 channel by demultiplexer. This is, then, converted to time domain by the Inverse Fast Fourier Transform (IFFT) in which cyclic prefix is added to OFDM symbol time to have ...

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Joint Angle-Delay Estimation Based on Smoothed Maximum-Likelihood Algorithm

Joint Angle-Delay Estimation Based on Smoothed Maximum-Likelihood Algorithm

... parameters estimation based on physical propagation channel ...stacked channel frequency response vectors are rearranged by frequency domain smoothing before the ...

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Analysis of SOSTTC-OFDM based on Least Squares Method

Analysis of SOSTTC-OFDM based on Least Squares Method

... (i.e. frequency non-selective fading) channels without temporal ...fading channel SOBC in the space and time domain show an improved coding gain and provide full diversity when compared with both ...

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INPULSE noise estimation in frequency selective fading channel

INPULSE noise estimation in frequency selective fading channel

... In, OFDM frequency domain channel model. We use the sparse nature of e to estimate it and then remove it from the received signal. We use the subcarriers free of modulation symbols to estimate e. ...

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A time-domain control signal detection technique for OFDM

A time-domain control signal detection technique for OFDM

... orthogonal frequency division multiplexing (OFDM) architecture to investigate the detection performance of a time-domain approach used to detect deterministic control signalling ...(ML) estimation ...

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A WiMAX-Based Implementation of Network MIMO for Indoor Wireless Systems

A WiMAX-Based Implementation of Network MIMO for Indoor Wireless Systems

... universal frequency reuse and frequency reuse ...consider frequency reuse 1/2 because it improves the SINR distribution so that fewer users are below this critical SINR ...full frequency ...

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Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing Approaches

Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing Approaches

... 33 frequency bins are shown in Figure 3(a). The varia- tion with frequency of the beampattern directed towards 0 ◦ is shown in Figure 3(b), from which it is seen that the resulting beampattern within the ...

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Estimation of Channel Performance of Satellite Communication and Frequency Reader

Estimation of Channel Performance of Satellite Communication and Frequency Reader

... Figure5(a) shows the BER performance to AWGN channel, where BPSK and QPSK systems are compared. BPSK requires 3 dB less of signal to noise ratio than QPSK to achieve the same BER. This outcome will hold true only ...

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MIMO OFDM Channel Estimation in the Presence of Carrier Frequency Offset

MIMO OFDM Channel Estimation in the Presence of Carrier Frequency Offset

... additive channel noise is white Gaussian with zeros mean. Channel parameters corresponding to different transmit or receive antennas are independent and identically distributed ...The channel order ...

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