flat fast fading channels
Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering
... In this paper, we proposed to solve blind MUD over flat fast fading channels. We constructed a novel time-observation state-space model, based on which efficient particle filtering and ...
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Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering
... In this paper, we proposed to solve blind MUD over flat fast fading channels. We constructed a novel time-observation state-space model, based on which efficient particle filtering and ...
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Security gap analysis of some LDPC coded transmission schemes over the flat and fast fading Gaussian wire tap channels
... wire-tap channels: the flat and the fast fading wire-tap channels with additive white Gaussian ...considered channels, while taking advantage of their simpler encoding and ...
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A Receiver Structure for Frequency Flat Time Varying Rayleigh Channels and Performance Analysis
... for fast-fading channels have been proposed [8]- ...with fast fading, using a low-pass rectangular pilot filter produces an error floor, and more judiciously designed pilot fil- ters ...
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Using the physics of the fast fading to improve performance for mobile radio channels
... In this paper, we focus on the flat fading channel. This channel corresponds to an interference pattern formed due to the intersection of several coherent beams. This pattern will only be of interest to us ...
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Tracking Performance of an Adaptive Transmit Beamspace Beamformer in Dynamic Miso Wireless Channels
... a flat fading dynamic channel with a single time resolvable ...Rayleigh fading that is uncorrelated across the N antenna ...Different fading rates are applied to represent slow and fast ...
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Eigenstructures of MIMO Fading Channel Correlation Matrices and Optimum Linear Precoding Designs for Maximum Ergodic Capacity
... -selective channels depends greatly on the eigenvalue distribution of spatial cor- relation ...the fast changing nature of the underlying channel, full channel knowledge is difficult to obtain at the ...
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Fading Characteristics over Wireless Channels
... small-scale fading leads to four distinct effects, as shown in Fig. 1. Fading effects due to multipath time delay spread leads to “time dispersion” and “frequency selective fading” whereas Doppler ...
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Performance comparison of multiuser detectors with channel estimation for flat Rayleigh fading CDMA channels
... Code Division Multiple Access (CDMA) is a promising technique for mobile communication systems. The major advantage of CDMA compared with Frequency Division Multiple Access (FDMA) and Time Division Multiple Access (TDMA) ...
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Iterative decoding with imperfect channel estimation for wireless systems.
... In th is thesis, we propose a new iterative algorithm for tu rb o decoding w ith integrated channel estim ation for Rayleigh flat-fading channels. T h e design of th e proposed algorithm is based on ...
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New Multiple Antennas Method based Energy Detector for Cognitive Radio over Fading Channels
... In this paper we presented a DSP processor to be used as a baseband energy detectorbased spectrum sensingfor cognitive radio (CR) under fading channels. We Derived expression for the average probability of ...
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Robust frequency-domain turbo equalization for multiple-input multiple-output (MIMO) wireless communications
... In this paper, we demonstrated that multiple carrier frequency offsets (CFOs) in MIMO systems can be troublesome for single carrier frequency-domain equalization if the discrete Fourier transform block size is large ...
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Joint Adaptive Modulation and Adaptive MAC Protocols for Wireless Sensor Networks
... over flat-fading channels, with data rate and transmit power being varied according to channel conditions with two variants: Adaptive Modulation with Idle mode (AMI) and a new Adaptive Sleep with ...
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Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems
... variant channels, to be adaptive to the time variations in the channel ...varying channels efficiently, but their performance reduces considerably under the rapidly varying fading con- ...under ...
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Cooperative Communications over Flat Fading Channels with Carrier Offsets: A Double-Differential Modulation Approach
... We propose double-differential (DD) modulation for the amplify-and-forward protocol over Nakagami-m fading channels with carrier offsets. We propose an emulated maximum ratio combining (EMRC) decoder, which ...
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Blind spectrum sensing for cognitive radio over time variant multipath flat fading channels
... time-variant channels and covariance absolute value (CAV) detection algorithm which is newly introduced and has found a wide application recently [18], the ori- ginality of our algorithm is that it could estimate ...
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BER Performance of 2x2 and 4x4 Transmit Diversity MIMO in Downlink LTE
... configuration. Flat fading, EPA, EVA, ETU channels are supported and at the receiver space frequency block coding is coupled with soft decision demodulation and scrambling [12,13] is ...
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Performance of an adaptive successive serial parallel CDMA cancellation scheme in flat Rayleigh fading channels
... in flat Rayleigh fading asynchronous channels with both perfect and nonperfect channel estimation and with perfect ranking confirms the accuracy of our analytical model as well as the significant ...
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Effectiveness of Frequency-Domain Correlative Coding for MIMO-OFDM Systems Over Time Selective Rayleihg Fading Channels Offia Innocent.S, Udeh Ikemefuna James, Eke J Department of Electrical Electronic Engineering Enugu State University of Science and Technology, Enugu State Nigeria
... In this paper, we apply frequency-domain correlative coding originally pro-posed [Zhao. 1998] for single-antenna OFDM systems to MIMO- OFDM to improve system robustness to time- selective fading. While the ...
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Rayleigh Fading Multi Antenna Channels
... Large systems limits were calculated for the capacity in the case of perfect channel knowledge at the transmitter. For power levels above a certain critical threshold, this limit can be easily calculated in closed form. ...
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