Results 11 to 20 of about 41,621 (188)

Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2015
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method for high data rate wireless communications. In this paper, two schemes are proposed.
Awatif Ali Jafaar
doaj   +1 more source

Implementation and testing of a FSK demodulator

open access: yesRevista Elektrón, 2021
This work describes the implementation and testing of a FSK demodulator, within the framework of a modem re-engineering for navy communications. It was developed over a Spartan 6 XCSLX25 FPGA with its code in VHDL.
Leandro José Ferrari   +3 more
doaj   +1 more source

The AWGN Red Alert Problem [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
Consider the following unequal error protection scenario. One special message, dubbed the "red alert" message, is required to have an extremely small probability of missed detection. The remainder of the messages must keep their average probability of error and probability of false alarm below a certain threshold.
Nazer, Bobak   +2 more
openaire   +2 more sources

Secrecy Capacity Region of the AWGN MAC with External Eavesdropper and Feedback

open access: yesEntropy, 2023
For the point-to-point additive white Gaussian noise (AWGN) channel with an eavesdropper and feedback, it has already been shown that the secrecy capacity can be achieved by a secret key-based feedback scheme, where the channel feedback is used for ...
Haoheng Yuan, Guangfen Xie, Bin Dai
doaj   +1 more source

Threshold Computation for Spatially Coupled Turbo-Like Codes on the AWGN Channel

open access: yesEntropy, 2021
In this paper, we perform a belief propagation (BP) decoding threshold analysis of spatially coupled (SC) turbo-like codes (TCs) (SC-TCs) on the additive white Gaussian noise (AWGN) channel.
Muhammad Umar Farooq   +2 more
doaj   +1 more source

Energy efficient communications over the AWGN relay channel [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2010
This paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are optimally allocated to maximize the spectral efficiency according to the channel information and the sum network energy.
Gómez Vilardebó, Jesús   +2 more
openaire   +5 more sources

Achieving Positive Covert Capacity Over MIMO AWGN Channels [PDF]

open access: yesIEEE Journal on Selected Areas in Information Theory, 2021
Covert communication, low probability of detection communication, MIMO AWGN, square-root law, secrecy capacity, compound channels, unit-rank ...
Bendary, Ahmed   +2 more
openaire   +2 more sources

Automatic Modulation Classification of Real Signals in AWGN Channel Based on Sixth-Order Cumulants [PDF]

open access: yesRadioengineering, 2021
Automatic modulation classification (AMC) represents an important integral part of modern communication systems. While novel AMC algorithms based on complex neural network structures showed significant performance improvements, in practical applications ...
M. Simic, M. Stankovic, V. D. Orlic
doaj  

When AWGN-Based Denoiser Meets Real Noises

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2020
Discriminative learning based image denoisers have achieved promising performance on synthetic noises such as Additive White Gaussian Noise (AWGN). The synthetic noises adopted in most previous work are pixel-independent, but real noises are mostly spatially/channel-correlated and spatially/channel-variant.
Zhou, Yuqian   +6 more
openaire   +3 more sources

Fuchsian codes for AWGN channels

open access: yes, 2013
This is an extended version of a work with the same title which has been already published in the Proceedings of the Workshop on Cryptography and Coding Theory (Bergen, 2013). I particular, it contains extra material on the generation of the constellation.
Remón Adell, Diónis   +3 more
openaire   +5 more sources

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