Results 31 to 40 of about 6,661 (173)

Implementation of Layered Decoding Architecture for LDPC Code using Layered Min-Sum Algorithm

open access: yesInternational Islamic University Malaysia Engineering Journal, 2017
For binary field and long code lengths, Low Density Parity Check (LDPC) code approaches Shannon limit performance. LDPC codes provide remarkable error correction performance and therefore enlarge the design space for communication systems.In this paper ...
Sandeep Kakde   +3 more
doaj   +1 more source

Performance Evaluation of LDPC-Coded Power Series Based Málaga (Ḿ) Distributed MIMO/FSO Link With M-QAM and Pointing Error

open access: yesIEEE Access, 2022
In this work, the performance evaluation of Low-Density-Parity-Check (LDPC) based Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) based Free Space Optical (FSO) link with Málaga (Ḿ) channel model is ...
D. Anandkumar, R. G. Sangeetha
doaj   +1 more source

A Novel LS/LMMSE Based PSO Approach for 3D-Channel Estimation in Rayleigh Fading

open access: yesAdvanced Electromagnetics, 2018
A high transmission rate can be obtained using Multi Input Multi Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) model. The most commonly used 3D-pilot aided channel estimation (PACE) techniques are Least Square (LS) and Least Minimum ...
D. N. Bhange, C. Dethe
doaj   +1 more source

Transmission of control information in 5G broadband telecommunication systems

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2021
This article discusses the polar code is applied to the transmission of control information in broadband telecommunications systems. Channel coding contains a set of procedures for error detection, error correction, rate matching, bit interleaving and ...
Ю. Бойко   +3 more
doaj   +1 more source

BER-Constrained Power Allocation for Uplink NOMA Systems with One-Bit ADCs

open access: yesMathematics
This study investigates bit error rate (BER)-constrained power allocation for uplink non-orthogonal multiple access (NOMA) systems in which a base station employs one-bit analog-to-digital converters.
Tae-Kyoung Kim
doaj   +1 more source

Thermally Pre‐Formed Reconfigurable Resistive Random‐Access Memory Crossbar Arrays: A Dual‐Mode Platform for Robust Physically Unclonable Functions and In‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon   +4 more
wiley   +1 more source

Path Optimization based on Bit Error Rate (BER) Estimation in Underwater Sensor Networks

open access: yesInternational Journal of Engineering & Technology, 2018
The underwater sensor networks (UWSNs) is an enabling technology and has become more and more trend for detecting vast area of oceans. Underwater sensor Networks consist of a variable number of sensors based on acoustic wireless communications. Communications are rapidly used for enabling advances in terms of ocean monitoring and observatory systems ...
S Madhumita   +2 more
openaire   +2 more sources

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

open access: yesAdvanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang   +11 more
wiley   +1 more source

A Joint Bit-to-Symbol Mapping Scheme in Cooperative Spatial Modulation System

open access: yesIEEE Access, 2019
In this paper, a joint bit-to-symbol mapping scheme in a cooperative spatial modulation (SM) system with amplify-and-forward (AF) and decode-and-forward (DF) protocols is proposed to improve the system performance, such as the transmission bit rate and ...
Zhiquan Bai   +5 more
doaj   +1 more source

Temperature‐Resilient Reconfigurable Physical Unclonable Function Driven by Pulse Modulation Using CMOS‐Integrated Spintronic Chips

open access: yesAdvanced Science, EarlyView.
A reconfigurable physical unclonable function is developed using CMOS‐integrated SOT‐MRAM chips, leveraging a dual‐pulse strategy and offering enhanced environmental robustness. A temperature‐compensation effect arising from the CMOS transistor and SOT‐MTJ is revealed and established as a key prerequisite for thermal resilience.
Min Wang   +7 more
wiley   +1 more source

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