Results 261 to 270 of about 878,777 (290)

Probability distributions of SIR in a Rayleigh fading channel

AFRICON 2015, 2015
In fading channel when the interfere signal is a random variable, the resulting signal-to-interference-plus-noise ratio (SINR) or signal-to-interference ratio (SIR) is also random and its distribution has to be known for a correct description of the receiver.
Murad Ridwan, Mohammad Abdo, Eduard A. Jorswieck   +2 more
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Compressive Sensing for the Capacity of a Rayleigh Fading Channel

2011 IEEE International Conference on Communications (ICC), 2011
A given objective function, $I(p_X(x))$, is to be maximized over the argument $p_X(x)$, where $p_X(x)$ is a continuous function of $x \in R^1$. Rather than optimizing $I(p_X(x))$ over the domain of functions, where the optimal solution $p_X^*(x)$ is non-zero only at a few but unknown discrete points $x \in \{x_1 , x_2 , \ldots , x_S \} $, is it ...
Jocelyn Aulin, Djordje Jeremic
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Exact Coherence Bandwidth of Rayleigh Fading Channels

2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
Determination of the coherence bandwidth for multipath fading channels is of great importance for wireless systems design. However, the calculation of the coherence bandwidth so far has relied on an empirical formula. In this paper, we derive an exact coherence bandwidth formula for Rayleigh fading channels. The use of the new formula is illustrated by
Keith Q. T. Zhang, Shenghui Song 0001
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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
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Innovations-based MLSE for Rayleigh fading channels

Proceedings of IEEE Pacific Rim Conference on Communications Computers and Signal Processing, 1995
Use of the innovations approach for developing MLSE (maximum likelihood sequence estimation) algorithms for signals transmitted over Rayleigh fading channels is considered. The derived receiver demodulates the signals recursively in a noncoherent fashion and is applicable to any linearly modulated signals and to both frequency-nonselective and ...
Xiaoyong Yu, Subbarayan Pasupathy
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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 ...
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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
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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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A case for considering hyper-Rayleigh fading channels

IEEE Transactions on Wireless Communications, 2007
This work is motivated by the problem of characterizing small-scale radio propagation environments for wireless sensor networks. If sensors are statically deployed near the ground or within structures, temporal fading may not exist but the channel may nevertheless experience severe frequency-selective behavior.
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Variable-Rate Transmission for Rayleigh Fading Channels

IEEE Transactions on Communications, 1972
A modulation system is proposed that continuously adjusts its data rate in response to signal strength variations in a fading channel. The optimum variation of data rate with channel conditions is determined, and includes the effects of feedback channel time delay, the interval between rate changes, and restriction of the number of allowable rates ...
openaire   +2 more sources