Results 201 to 210 of about 2,887 (229)

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.
Fredrik Berggren, Riku Jäntti
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Analysis of Cooperative TDMA in Rayleigh Fading Channels

IEEE Transactions on Vehicular Technology, 2013
The time-division-multiple-access-based (TDMA) protocol has been widely utilized as a reliable media access control (MAC) mechanism. By allocating each user a dedicated time slot, a given TDMA user transmits its packets in its exclusively assigned time slots, whereas other users are in idle mode (not transmitting). However, in this paper, a cooperative
Nansai Hu, Yu-Dong Yao, Zhuo Yang
openaire   +1 more source

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
openaire   +1 more source

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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Applying IIR predictors on Rayleigh fading signal

Signal Processing, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
P. Taneli Harju, Timo I. Laakso, Seppo J. Ovaska   +2 more
openaire   +1 more source

LDPC coded modulation for Rayleigh fading channels

2012 International Conference on Wireless Communications and Signal Processing (WCSP), 2012
This paper presents a novel scheme of low-density-parity-check (LDPC) coded modulation system called bit-expand-interleaved coded modulation with iterative decoding and demapping (BEICM-ID) over Rayleigh fading channels. In traditional bit-interleaved coded modulation (BICM) schemes and its iterative version, BICM-ID, each bit node is mapped into one ...
Jintao Li, Yibin Yang, Hui Yu 0002, Yunfeng Guan 0001   +3 more
openaire   +1 more source

Wireless QoS analysis for a Rayleigh fading channel

ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220), 2002
We present an analysis of the relationship between the two link-level QoS (quality of service) parameters (delay and error rate) and the motion speed of a user in a wireless packet network environment. The analysis is based on: (1) a wireless channel simulation using a time-correlated Rayleigh fading model and (2) a physical layer model which complies ...
Kang-Won Lee, Matthew Cheng, Li-Fung Chang   +2 more
openaire   +1 more source

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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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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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