frequency selective Rayleigh channels
Performance Analysis of Multiple Symbol Differential Detection for OFDM over Both Time and Frequency Selective Rayleigh Fading Channels
... nal frequency-division multiplexing (OFDM), which trans- mits the information symbols in parallel over a number of spectrally overlapping but temporally orthogonal subchan- nels [2], is an effective technique to ...
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Bit Error Rate Analysis of OFDM System with Channel Estimation Error in Rayleigh Fading Channels
... N -point DFT of the noise vector z . From (4), it can be seen that, the symbol on each sub-carrier experiences flat fading, even though the channel is frequency selective. To achieve good BER performance, ...
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A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and Performance Analysis
... Receivers for fast-fading channels based on filter banks are presented in [12]-[14]. In [12], the authors demonstrate two types of receivers based on single-filter and double- filter. The single-filter receiver ...
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Distributed Space Time Block Code over Mixed Rayleigh and Rician Frequency Selective Fading Channels
... As aforementioned, the PEP analysis is carried out based on (11). Moreover, the derivation of the PEP is accomplished under the assumption of an ML detection scheme at the receiver. However, such an ML scheme for the ...
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Performance Analysis of OFDM-Based Decode-and-Forward Relay Network with Multiple Interferers over Rayleigh Fading Channels
... so-called frequency-selective fading ...and frequency-selective fading channels, more should be considered involving the selection of the relays, the combiner for combating multiple ...
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Identification of LOS in Time Varying, Frequency Selective Radio Channels
... Due to mutually exclusive relationship between LOS and NLOS, the identification procedure is generally regarded as a composite hypothesis test in which ToA information and ranging measurements are employed [8, 14–16]. ...
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Orthogonal frequency division multiplex synchronization techniques for frequency selective fading channels
... The simulated accuracy of the OFDM symbol synchroniza- tion in an AWGN channel is characterized in Fig. 6(a), where using a Gaussian channel was justified by the fact that the proposed synchronization schemes were ...
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Optimizing time and space MIMO antenna system for frequency selective fading channels
... (MIMO) channels [10], [11] or joint transmitter receiver systems ...a frequency domain ...flat Rayleigh fading channels in the presence of CCI are ...for frequency selective ...
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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 ...Doppler ...
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On Channel Estimation of OFDM BPSK and QPSK over Generalized Alpha Mu Fading Distribution
... fading channels have already been studied and employed in OFDM systems in fre- quency selective and flat fading ...both frequency and flat fading environ- ment in ...
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Design of Nonuniform Filter Bank Transceivers for Frequency Selective Channels
... In this paper, we consider the design of nonuniform transceiver for frequency selective channels. Both the cases of integer and rational sampling factors are considered. As the effect of channel is ...
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Frequency-Selective Energy Tunneling in Wire-Loaded Narrow Waveguide Channels
... The frequency response of such wire-loaded cavities primarily depends on the lengths of the resonant wires and therefore can be tailored to any desired range of ...
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Adaptive Zero Padding OFDM over Frequency Selective Multipath Channels
... In channels with large de- lay spread, simulation results show that the proposed AZP- OFDM offers better performance than those of both CP- and ZP-OFDM with fixed guard ...
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Receivers and CQI Measures for MIMO-CDMA Systems in Frequency-Selective Channels
... in frequency-selective channels, in order to avoid the complications of multidimensional ...multipath channels, and show that in this case successive decoding achieves ...
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Adaptive Modulation Performance In Mimo-OSTBC Over Rayleigh Fading Channel
... radio frequency signal may be obstructed by other obstacles like tall buildings, human beings, mountains or any other natural or artificial obstacles which make the signal to experience reflection, refraction, ...
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STC-Mimo Block Spread OFDM in Frequency Selective AWGN Channels
... bandwidth channels of data through a wideband ...sub channels within the allocated ...the frequency selective fading of signals and similarly higher will be the data-rates for that complex ...
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SECURE PACKETS IN WIRELESS SENSOR NETWORKS BASED ON FREQUENCY SELECTIVE CHANNELS
... We are interested in the amount of uncertainty that an adversary experiences. Information theory introduces the notion of (Shannon) entropy to quantify the average amount of information of a discrete random variable, ...
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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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Bi-Level Fh-Cdma Scheme For Communication Systems Over Rayleigh And Rician Channels
... FH-CDMA provides frequency diversity and it reduces the multipath fading and interference [1], [2]. The FH-CDMA gives better result than direct-sequence CDMA [1], [4] in some ways like reduced near-far problem, ...
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Rayleigh Fading Multi Antenna Channels
... Throughout, we make extensive use of results from the theory of random matrices. Of particular interest are Wishart matrices, which model certain statistics of the Rayleigh chan- nel. We make use of both the large ...
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