Results 221 to 230 of about 161,361 (250)

Rayleigh fading networks: a cross-layer way

IEEE Transactions on Communications, 2009
This paper addresses Rayleigh fading networks, and in particular, wireless ad-hoc and sensor networks over Rayleigh fading channels. First, we will model Rayleigh fading networks and show how to map the wireless fading channel to the upper layer parameters for cross-layer design.
Guansheng Li, Pingyi Fan, Khaled Ben Letaief   +2 more
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The Performance of FSK in Frequency-Selective Rayleigh Fading

IEEE Transactions on Communications, 1983
This paper presents measured error-rate performance of binary FSK with discriminator detection in simulated Rayleigh fading with time delay spread. Measured relations between error rate and carrier-to-noise ratio are shown for a range of time delay spreads. We have verified that the effect of time delay spread on error rate can be described by only one
Hamilton W. Arnold, William F. Bodtmann
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RSS based localization in Rayleigh fading environment

2016 IEEE Wireless Communications and Networking Conference, 2016
In this paper, we investigate the quality of sensor localization that can be achieved by analyzing the strengths of signals transmitted by the sensors and measured at anchors placed at the corners of a rectangular area within which the sensors are deployed. The propagation environment is slow Rayleigh fading for which the parameters are unknown.
Rojina Adhikary, John N. Daigle
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GQR models for multipath Rayleigh fading channels

IEEE Journal on Selected Areas in Communications, 2001
In this paper, reduced complexity statistical models for the representation of wide sense stationary-uncorrelated scattering doubly selective fading channels are developed. Their derivation is based on the evaluation of Fourier integrals by means of Gaussian quadrature rules.
CHIAVACCINI, Eugenio, VITETTA, Giorgio Matteo   +1 more
openaire   +1 more source

Multilevel block codes for Rayleigh-fading channels

IEEE Transactions on Communications, 1995
Summary: New multilevel block codes for Rayleigh-fading channels are presented. At high signal-to-noise ratios, the proposed block codes can achieve better bit error performance over TCM codes, optimum for fading channels, with comparable decoder complexity and bandwidth efficiency.
Lin Zhang 0002, Branka Vucetic
openaire   +3 more sources

Neural Network Handoff in Shadow-Rayleigh Fading

2005 IEEE International Symposium on Circuits and Systems, 2005
A handoff algorithm in a cellular system under shadow-Rayleigh fading propagation is presented. The algorithm applies the timing advance for mobile positioning. The inputs of the proposed radial-basis function network consist of the mobile direction obtained by the MUSIC method on an array antenna, the received signal strengths (RSSs) of the mobile ...
Raungrong Suleesathira, Sunisa Kunarak
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Multilevel modulation codes for rayleigh fading channels

1991
In this paper, new multilevel modulation codes with good error rate performance on the Rayleigh fading channel are presented. It has been demonstrated that the error performance of a multilevel block code is dominated by the minimum Hamming distance of the component codes when ideal interleaving is applied.
Lin Zhang 0002, Branka Vucetic
openaire   +2 more sources

Statistics of Sampled Rayleigh Fading

1988
Abstract : This report addresses the requirements on the length and resolution of realizations of sampled Rayleigh fading used in simulation or hardware testing of communications links. Measurements of the cumulative distribution, mean fade duration, and mean fade separation are compared to ensemble values.
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Design of polar codes for Rayleigh fading channel

2015 International Symposium on Wireless Communication Systems (ISWCS), 2015
A simple method for construction of polar codes for Rayleigh fading channel is presented. The subchannels induced by the polarizing transformation are modeled as multipath fading channels, and their diversity order and noise variance are tracked.
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Coding for the Rayleigh fading channel

1996
The problem of effective coding for the Rayleigh fading channel is addressed. A signal transmitted over the Rayleigh fading channel experiences quasi-periodic deep fades in the signal amplitude, and random phase shifts. The fades in signal amplitude are the cause of error events and limit the bit error rate of an uncoded system to about 10-4 at a ...
openaire   +2 more sources