frequency selective time-varying channels
Identification of LOS in Time Varying, Frequency Selective Radio Channels
... of time consumption and computational ...observing time must be long enough; (b) the transmissions that have relatively weaker LOS component cannot be easily distinguished from other theoretical ...
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A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and Performance Analysis
... fast-fading channels based on filter banks are presented in ...a time-se- lective channel model which approximates the fading process by the first two terms of its Taylor ...a time-selective ...
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Time-Varying FIR Equalization for MIMO Transmission over Doubly Selective Channels
... ISI channels are described as ...carrier frequency offset (CFO) the received signal is subject to frequency ...to time-selectivity characteristics of the mobile wireless ...as time- and ...
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Spectrally Efficient Communication over Time-Varying Frequency-Selective Mobile Channels: Variable-Size Burst Construction and Adaptive Modulation
... Achieving high spectral efficiency is an important goal in communication. However, it is equally important that the quality of service (QoS), quantified by the bit error rate (BER), will not deteriorate as a result of this ...
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A Novel MIMO-OFDM Adaptive Receiver in Time-Varying Channels
... The MIMO transmission system is employed to increase the transmitted data rate and improve the communication link quality compared with single-antenna system[1]-[3]. Furthermore, the Space-Time Block codes ...
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Performance of compressive sensing algorithms over time varying frequency selective channel
... these channels creates difficulty in estimation of the channel ...detection. Time-varying nature of the channel fading and the correlation between the channels due to Doppler frequencies ...
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Power line communications over time-varying frequency-selective power line channels for Smart Home Applications
... Finally, the most significant problem of channel modelling for smart grid com- munications is the lack of narrowband channel models. Most of the channel models, especially top-down ones, are broadband channel models in ...
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Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems
... is time-variant, as we experience in wireless communication ...for time variant channels, to be adaptive to the time variations in the channel ...slowly varying channels ...
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Linear and Nonlinear Time Domain Block Equalizers on MIMO Frequency Selective Channels
... the time domain block linear and nonlinear equalizers for the signal separation and equalization of single carrier transmission on quasi- static frequency selective MIMO, SIMO, and SISO chan- ...
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Orthogonal frequency division multiplex synchronization techniques for frequency selective fading channels
... joint time- and frequency-synchronization acquisition algorithm for the down- link of OFDM ...a time-dispersive Rayleigh fading WATM channel has been shown to be very close to the perfectly ...
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Download Download PDF
... fading channels, and on time-varying frequency-selective Rayleigh fading channels using rectangular M-QAM and OFDM systems ...Doppler frequency and frame length ...
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Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels
... canonical frequency- domain representation of the minimal norm LTV-ZF equal- izer, which assures the best ABER performances in the pres- ence of AWGN, and we have discussed the mathematical con- ditions assuring ...
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Cholesky Factorization-Based Adaptive BLAST DFE for Wideband MIMO Channels
... over time-varying and frequency-selective multiple-input multiple-output (MIMO) channels is ...slow time-varying ...for time-varying and wideband ...
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1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
... orthogonal frequency division multiplexing (OFDM) systems [1], a frequency selective (FS) channel is commuted into an accumulation of flat fading channels, which can be indemnified by simply ...
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Implementation of Transmit Diversity Schemes
... flat channels only the constant channel gain between adjacent subcarriers ...the frequency selective channel is converted to frequency flat fading channel by using OFDM ...
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Low-Complexity Geometry-Based MIMO Channel Simulation
... The bandwidth of the fading process in the spatial do- main is determined by the angular spread of the channel, which is almost as large as the spatial sampling rate for most scenarios in wireless communications. ...
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Successive interference cancellation schemes for time-reversal space-time block codes
... —In time division synchronous code division multiple access downlink, one computationally efficient receiver for fast time-varying en- vironments is the subblock processing receiver, which utilizes ...
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Parallel Multistage Decision Feedback Equalizer for Single Carrier Layered Space Time Systems in Frequency Selective Channels
... multiple-output OFDM (MIMO-OFDM) scheme [11] is a satisfactory solution not only to mitigate ISI but also to obtain high spectral efficiency. The MIMO decision feed- back equalizer (MIMO-DFE) [12] with its forward filter ...
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Identifying time-varying channels with aid of pilots for MIMO-OFDM
... orthogonal frequency division multiplexing (OFDM) systems with a multiple-input multiple-output ...is time varying due to Doppler effects and can be approximated by an oversampled complex exponential ...
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A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems
... orthogonal frequency-division multiplexing (OFDM) transmission through frequency-selective channels, this paper pursues a channel estimation approach in time domain for both ...
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