Results 211 to 220 of about 45,199 (262)

Rayleigh fading simulation on PCs

IEEE TENCON'90: 1990 IEEE Region 10 Conference on Computer and Communication Systems. Conference Proceedings, 2002
A system for Rayleigh fading simulation is presented together with the results of some experiments and field trials carried out for the purpose of comparison of burst error correcting codes. The most notable features of the system are to be found in the proposed approach to Rayleigh fading simulation, realized on a PC in an easy and flexible form ...
E. Angeleri, L. Mazzei, A. Pegoretti
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Minimum Selection GSC in Independent Rayleigh Fading

IEEE Transactions on Vehicular Technology, 2005
We analyze the error performance of minimum selection generalized selection combining (MS-GSC), in which the minimum number of diversity branches are selected such that their combined signal-to-noise ratio (SNR) is above a given threshold. A flat Rayleigh fading channel with independent and distinctly distributed branch SNR is considered.
R.K. Mallik, P. Gupta, Q.T. Zhang
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Scheduling in wireless networks with rayleigh-fading interference

Proceedings of the twenty-fourth annual ACM symposium on Parallelism in algorithms and architectures, 2012
We study approximation algorithms for optimization of wireless spectrum access with $n$ communication requests when interference conditions are given by the Rayleigh-fading model. This model extends the deterministic interference model based on the signal-to-interference-plus-noise ratio (SINR) using stochastic propagation to address fading ...
Dams, J., Hoefer, M., Kesselheim, T.
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An OFDM Rayleigh Fading Channel Simulator

IEEE Vehicular Technology Conference, 2006
Several models have been proposed for the simulation of Rayleigh fading channels. However, existing simulators lack to properly consider the correlation between the subchannels of an OFDM system. We use a recently developed cross-correlation function that describes both temporal and frequency correlation in order to generate channel parameters.
Saeed Moradi, Saeed Gazor
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Mobile fading—Rayleigh and lognormal superimposed

IEEE Transactions on Vehicular Technology, 1977
A closed solution is presented showing the composite probability distribution of power levels derived from short term Rayleigh fading with superimposed long term lognormal variations of mean value. An example shows how the results can be applied to the prediction of bit error rates in a mobile radio data transmission channel, and how the error rate ...
F. Hansen, F.I. Meno
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Multiuser scheduling over rayleigh fading channels

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004
Forthcoming wideband wireless systems are supposed to support services with loose delay requirements, which allows for scheduling of data. In this work we investigate fast transmission scheduling for downlink CDMA over a Rayleigh fading channel.
F. Berggren, R. Jantti
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Optimized Selection Diversity for Rayleigh Fading Channels

IEEE Transactions on Communications, 1982
This paper considers the choice of the number of diversity branches for minimizing the bit error rate of a selection diversity system using noncoherent binary frequency-shift keying modulation for transmission over a Rayleigh fading Gaussian channel. An exact expression for the optimum number of branches, L_{sel}^{\ast} , is given.
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Measurement Complexity of Rayleigh Fading Channels

IEEE Transactions on Vehicular Technology, 2009
Rayleigh fading is a widely used channel model in wireless communications. The mean channel power is of practical importance in channel access, power control, handoff, modeling, and coverage analysis of wireless systems. A fundamental problem naturally arises: How many measurements are sufficient to estimate these parameters with the prescribed margin ...
null Xinjia Chen, null Guoxiang Gu, null Kemin Zhou   +2 more
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Generating model of a sub-Rayleigh fading

Journal of the Franklin Institute, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Adaptive LDPC for Rayleigh fading channel

Proceedings. ISCC 2004. Ninth International Symposium on Computers And Communications (IEEE Cat. No.04TH8769), 2004
Two adaptive coded modulation schemes employing LDPC (low-density parity-check) code are proposed for Rayleigh fading channels. Scheme 1: we fix the code rate (rate=1/2), and only change the modulation methods according to the channel state, that is, during poor channel conditions, QPSK modulation is employed, as channel conditions improve, more ...
null Yuling Zhang, null Dongfeng Yuan, null Haigang Zhang   +2 more
openaire   +1 more source