Rayleigh time-selective channels
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... over Rayleigh fading ...flat Rayleigh fading channels, and on time-varying frequency-selective Rayleigh fading channels using rectangular M-QAM and OFDM systems ...
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Performance Analysis of Multiple Symbol Differential Detection for OFDM over Both Time and Frequency Selective Rayleigh Fading Channels
... the time-invariant nature of the channel impulse response over adjacent symbols, its performance will be con- siderably degraded when the channel is time selective, which results in an irreducible ...
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New Multiple Antennas Method based Energy Detector for Cognitive Radio over Fading Channels
... over Rayleigh and Nakagami- fading channels with asingle antenna, under ...fading channels can be roughly divided into two types: (1) Large-scale fading due to (a) Path loss and (b) Shadowing, both ...
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Adaptive Allocation of Pilot and Data Power for Time-Selective Fading Channels with Feedback
... a time-selective fading channel depends on what channel state information (CSI) is available at the receiver and ...a time-selective flat Rayleigh fading channel, which is unknown at ...
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Optimal Training for Time-Selective Wireless Fading Channels Using Cutoff Rate
... We consider the optimal allocation of resources—power and bandwidth—between training and data transmissions for single- user time-selective Rayleigh flat-fading channels under the cutoff rate ...
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Optimizing time and space MIMO antenna system for frequency selective fading channels
... space time coding in mul- tiple-input multiple-output (MIMO) channels [10], [11] or joint transmitter receiver systems ...flat Rayleigh fading channels in the presence of CCI are ...frequency ...
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Linear and Nonlinear Time Domain Block Equalizers on MIMO Frequency Selective Channels
... frequency selective fading ...against time selective ...with time selective fading with some compensation technique such as V-BLAST detection for each subcarrier [3], the long symbol ...
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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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Single Carrier Space Time Trellis and Space Time Block Coding for Dispersive Rayleigh Fading Channels
... wireless channels are neither high- ly time selective nor significantly frequency ...fading channels. When encountering wideband channels, multi-carrier Code Division Multiple Access ...
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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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Distributed Space Time Block Code over Mixed Rayleigh and Rician Frequency Selective Fading Channels
... first time slot, the source serially transmits two data blocks to two ...next time slot, one relay only amplifies and forwards its received signals, while the other precodes its received data blocks by a ...
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Frequency-Shift Zero-Forcing Time-Varying Equalization for Doubly Selective SIMO Channels
... over time- and frequency-selective, so-called doubly selective, channels requires an accurate description of the time-varying be- haviour of the transmission ...linear ...
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A differential ML combiner for differential amplify-and-forward system in time-selective fading channels
... Abstract—We propose a bandwidth-efficient transmission scheme for multiple-input–multiple-output point-to-point and downlink channels. The bandwidth efficiency (BE) of spatial multiplexing (SMX) is improved by ...
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Adaptive Channel Estimation for Turbo Decoding
... on Rayleigh fading channels with noisy channel ...over Rayleigh fading channels is exactly the same as the one used on Additive White Gaussian Noise (AWGN) ...on Rayleigh fading ...
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Performance Analysis of Orthogonal Space Time Block Code over Rayleigh Fading Channels for Various Modulation Techniques
... space time block code. In case of space time block code , if there are 2 b signals in the constellation ,then at time slot one 2b bits arrive at the encoder and select two complex symbols and ...
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Signal detection for orthogonal space-time block coding over time-selective fading channels: A PIC approach for the G(i) systems
... The “quasi-static channel” assumption in all O-STBC schemes requires that constant over the entire codeword length. This, in the case of and systems, means that the channel remains static over . It has been shown in [7], ...
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CONCATENATED TCM AND BCH FOR 8- PSK OVER RAYLEIGH AND AWGN CHANNEL
... In coding theory, combination of an inner code and an outer code forms aclass of error correcting codes known as concatenated codes. They are conceived in 1966 by Dave Forney. These codes have two advantages, that is ...
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Full Rate, Full Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels
... be found between the code orthogonality and coding rate of STBC schemes employing more than two transmit antennas. Specifically, an orthogonal STBC scheme having a lower cod- ing rate was designed in [2], while a ...
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Performance Evaluation of OFDM System with Rayleigh, Rician and AWGN Channels
... Orthogonal Frequency Division Multiplexing (OFDM) is becoming a very common multi-carrier modulation technique for transmission of signals over wireless channels in diverse environments. OFDM divides the high- ...
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Low Complexity MLSE Equalization in Highly Dispersive Rayleigh Fading Channels
... ective time-diversity due to multipath ...sparse channels and it is shown that its performance in sparse channels is superior to its performance in equivalent dense, or nonsparse, channels, ...
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