frequency-selective time-selective fading channels
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 ...multipath fading, with prior knowledge of the channel at the ...flat ...
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1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
... that the robustness of transformations-based CE approaches such as discrete Fourier transform (DFT), discrete cosine transform (DCT) under various channel distributions. The experimental analysis given in [22] discloses ...
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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 ...varying channels efficiently, but their ...
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Improving Performance and Detection Schemes of Mimo-Ofdm Systems in the Presence of Phase Noise and Doubly-Selective Fading Where Channel is Both Time and Frequency Selective Offia Innocent.S, Udeh Ikemefuna James, Eke J
... slowly fading channels (the channel is time- invariant over several Orthogonal Freguency Division Multiplexing (OFDM) symbol periods) (OFDM) signal are time and frequency synchronsed to ...
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An Extensive Review on STBC for MIMO OFDM System
... 355 Authors Parismita Gogoi and Kandarpa Kumar Sarma demonstrated in their research paper the Diversity methods provide the receiver with independently faded copies of the transmitted signal with the expectation that at ...
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Adaptive antennas at the mobile and base stations in an OFDM/TDMA system
... for frequency-selective fading channels, as compared to OFDM without antenna ...by time and/or frequency subcarrier, as well as ...
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Performance of Asynchronous MC CDMA Systems with Maximal Ratio Combining in Frequency Selective Fading Channels
... in channels with corre- lated Rayleigh, Rician, or Nakagami fading ...its time-frequency equivalence, which states that combining the subcarriers using MRC has exactly the same effect as ...
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Performance Analysis of Multiple Symbol Differential Detection for OFDM over Both Time and Frequency Selective Rayleigh Fading Channels
... over time- and frequency-selective Rayleigh fading ...guard time is longer than the delay spread, we derive the optimal decision met- ...
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Effective Needs of Space-Time-Frequency Coding in MIMO-OFDM Communication over Frequency Selective Fading Channels
... Most extreme differing qualities pick up is accomplished in [14] and [2] to the detriment of data transfer capacity productivity [14] or expanded unraveling multifaceted nature [14]. Then again, [1], [4], [5], [12], and ...
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A differential ML combiner for differential amplify-and-forward system in time-selective fading channels
... Multiple-input multiple-output (MIMO) systems have been shown to improve the capacity of the wireless channel by means of spatial multiplexing (SMX). Transmit precoding (TPC) schemes introduced for multiuser downlink ...
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Distributed Space Time Block Code over Mixed Rayleigh and Rician Frequency Selective Fading Channels
... Furthermore, the data detection of the proposed DSTBC can be decoupled in frequency domain for a low-complexity receiver. The main idea in our design is that each relay con- veys a distinct column of the ...
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Relay selection in cooperative networks with frequency selective fading
... correlated frequency selective fading ...flat fading channels demonstrate a performance and implementation advantage in using relay selection as opposed to more complicated distributed ...
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Identification of LOS in Time Varying, Frequency Selective Radio Channels
... that fading channel amplitudes of narrowband systems exhibit Ricean distribution under LOS transmission, the comparison of the theoretical distribution with the observed one gives an idea about LOS/NLOS status of ...
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3.5.1 CORRELATION MODELS FOR FREQUENCY SELECTIVE FADING
... In the previous section we exploited the finiteness of the time horizon to obtain a sampled Doppler repre- sentation of the channel. We now consider the dual problem of obtaining a sampled delay representation for ...
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Reduced feedback for selective fading MIMO broadcast channels
... the selective multiple-input multiple-output broadcast channel, where links are assumed to be selective in both time and ...the selective fading case, where the minimal number of ...
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Orthogonal frequency division multiplex synchronization techniques for frequency selective fading channels
... misaligned time domain FFT-windows cause phase errors in the frequency domain, this estimation accuracy can be improved by low-pass filtering the associated error ...
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Optimal harvest use store policy for energy harvesting wireless systems in frequency selective fading channels
... single-link fading channels: a) maximization of data transmission (or throughput) within a deadline T and b) minimization time of transmission (or delay) by B bits of data is ...
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Successive interference cancellation schemes for time-reversal space-time block codes
... for time-reversal space-time block codes to combat intersymbol interference in frequency- selective fading ...under time-invariant conditions. Results for ...
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Performance Analysis of Mimo-Wimax System Using Space Time Block Codes
... space, time and frequency selective fading conditions and increases both data rate and system ...Space Time Block Code for different modulation schemes under different channel ...
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On Channel Estimation of OFDM BPSK and QPSK over Generalized Alpha Mu Fading Distribution
... in frequency selective has different approach then compared with flat fading ...in frequency selective fading environment has been presented in ...doubly selective ...
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