Results 81 to 90 of about 44,063 (255)

On BER Performance of EBPSK-MODEM in AWGN Channel

Sensors, 2010
In order to satisfy the higher and higher demand for communication systems, an Extended Binary Phase Shift Keying (EBPSK) system with very high spectra efficiency has been proposed. During the research, a special kind of filters was found, which can amplify the signal characteristics and remove utmost noise, i.e., at the point of the phase jumping ...
Wu, Feng
openaire   +3 more sources

Regularised Hyper Parameter Bi Level Optimisation With Continual Learning Based Deep Neural Network for Beamforming in Ultra‐Wide Band System

IET Communications, Volume 20, Issue 1, January/December 2026.
This research proposes a Regularised Hyperparameter Bilevel Optimisation with Continual Learning‐based Deep Neural Network (RHBO‐CLDNN) for beamforming in an Ultra‐Wide Band (UWB) system. The RHBO ensures the hyperparameter efficiency at both upper and lower levels, which allows DNN to fine‐tune the unique characteristics of the UWB system, which leads
Pradeep Kumar Siddanna, Bidare Divakarachari Parameshachari, Dharmanna Shivappa Lamani   +2 more
wiley   +1 more source

ERROR PERFORMANCE OF TRELLIS CODED QUANTIZATION/ CONTINUOUS PHASE MODULATION SYSTEMS (TCQ/CPM) ON AWGN CHANNELS

Electrica, 2003
In this paper, Trellis Coded Quantization/Continuous Phase Modulation systems have been introduced and error performance analysis has been investigated on AWGN channels.
Niyazi ODABASIOGLU, Osman Nuri UCAN, Onur OSMAN   +2 more
doaj   +2 more sources

Peningkatan Unjuk Kerja Sistem Transmisi Komunikasi Digital pada Penerima dengan Menggunakan Teknik Diversity Equal Gain Combining

Jurnal Nasional Teknik Elektro, 2016
In digital communication systems, their fading and noise in the channel will disrupt or degrade the performance of a digital communication system. Where this disorder, can cause the error detection signal, so as to change bits or symbols at the receiver
Baharuddin Abbas, Ondri Yudha Rusli
doaj   +1 more source

Distance Properties of Short LDPC Codes and their Impact on the BP, ML and Near-ML Decoding Performance

, 2017
Parameters of LDPC codes, such as minimum distance, stopping distance, stopping redundancy, girth of the Tanner graph, and their influence on the frame error rate performance of the BP, ML and near-ML decoding over a BEC and an AWGN channel are studied ...
A Orlitsky, AS Asratian, C Di, CE Shannon, ER Berlekamp, G Poltyrev, H Pishro-Nik, H Pishro-Nik, I Sason, IE Bocharova, J Feldman, J Zumbrägel, M Baldi, M Jianjun, M Schwartz, N Varnica, RG Gallager, S Litsyn, T Hehn, T Richardson   +19 more
core   +1 more source

Tardos’s Fingerprinting Code over AWGN Channel [PDF]

, 2010
Binary fingerprinting codes with a length of theoretically minimum order were proposed by Tardos, and the traceability has been estimated under the well-known marking assumption. In this paper, we estimate the traceability and the false-positive probability of the fingerprinting code over AWGN channel, and propose a new accusation algorithm to catch ...
openaire   +1 more source

Communication‐Security Co‐Design for Federated Learning in Grant‐Free NOMA IoT Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
This article presents SA‐PPO, a Security‐Aware Proximal Policy Optimisation framework for federated learning over grant‐free NOMA (non‐orthogonal multiple access) in IoT networks. By jointly optimising access control, resource allocation, and trust‐weighted aggregation using cross‐layer indicators, SA‐PPO enhances both communication reliability and ...
Emmanuel Atebawone, Kwame Opuni‐Boachie Obour Agyekum, James Dzisi Gadze, Kwasi Adu‐Boahen Opare, Owusu Agyeman Antwi, Robert Akromond   +5 more
wiley   +1 more source

Pengaruh Pembobotan Desain Codebook terhadap Kinerja Sistem Sparse Code Multiple Access

Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Sparse code multiple access (SCMA) dapat mendukung sistem saat terjadi overloading di sisi penerima sehingga meningkatkan efisiensi spektrum sistem dengan merancang mapping symbol dengan tepat. Kinerja SCMA ditentukan dengan codebook yang bersifat sparse
Shilvy Fatma Fitria Rachmawati Fatma, Linda Meylani, Vinsensius Sigit Widhi Prabowo   +2 more
doaj   +1 more source

Asymptotic Behavior of Error Exponents in the Wideband Regime

, 2005
In this paper, we complement Verd\'{u}'s work on spectral efficiency in the wideband regime by investigating the fundamental tradeoff between rate and bandwidth when a constraint is imposed on the error exponent.
Srikant, R., Wu, X.
core   +1 more source

The capacity region of broadcast channels with memory [PDF]

, 1997
We derive the two-user capacity region of a broadcast channel with memory (ISI), assuming additive white Gaussian noise (AWGN) and an input power constraint.
Effros, Michelle, Goldsmith, Andrea
core