Results 231 to 240 of about 7,489 (260)
Some of the next articles are maybe not open access.

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
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   +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   +2 more
openaire   +1 more source

On the capacity of CPM over Rayleigh fading channels

2012 International Conference on Wireless Communications and Signal Processing (WCSP), 2012
In this paper, an algorithm is proposed to calculate the capacity of continuous phase modulation (CPM) over Rayleigh fading channels. The proposed algorithm is an extension of the simulation-based algorithm for calculating information rates of channels with memory. We modify the algorithm by taking into account the fading coefficients.
Rongting Chen   +4 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   +2 more sources

Onset of Rayleigh–Bénard convection in a rigid channel

Journal of Fluid Mechanics, 1989
A two-dimensional Galerkin formulation of the three-dimensional Oberbeck-Boussinesq equations is used to describe the onset of convection in an infinite rigid horizontal channel uniformly heated from below. The dependence of the critical Rayleigh number on the channel aspect ratio is determined and results are compared with those of an idealized model ...
Chana, M. S., Daniels, P. G.
openaire   +2 more sources

Prediction of State Transitions in Rayleigh Fading Channels

IEEE Transactions on Vehicular Technology, 2007
This paper presents a channel-sampling scheme that allows robust estimation of channel transitions into and out of the fade state. The sampling scheme is based upon a second-order autoregressive (AR-2) model for the Rayleigh fading channel and a corresponding state-space representation in terms of fade and nonfade states.
Prachee Sharma, Kavitha Chandra
openaire   +1 more source

Linear Equalizers for Flat Rayleigh MIMO Channels

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006
We consider linear detectors for MIMO systems, i.e., multi-antenna systems where linear equalizers are employed to remove spatial interference. We analyze the behavior of linear equalizers through outage probability. The MMSE equalizer was found to behave in unexpected ways.
Ahmadreza Hedayat   +2 more
openaire   +1 more source

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

Conditions for Cooperative Transmission on Rayleigh Fading Channels

2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), 2014
We consider a system of two nodes transmitting to an access point on quasi-static Rayleigh fading channels. We use signal-to-noise ratio (SNR) thresholds to characterize the requirements of each node, in terms of throughput and reliability, and we study their impact on outage probability.
openaire   +1 more source

Home - About - Disclaimer - Privacy