Results 31 to 40 of about 208,509 (216)
Implementation of Layered Decoding Architecture for LDPC Code using Layered Min-Sum Algorithm
International 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
Wavelength conversion up to 18 nm at 10 Gb/s by four-wave mixing in a semiconductor optical amplifier [PDF]
, 1997 We characterize the conversion bandwidth of a four-wave mixing semiconductor optical amplifier wavelength converter. Conversion of 10-Gb/s signals with bit-error-rate (BER) performance of
Geraghty, David F. +5 more
core +1 more source
IEEE 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
Advanced 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
Adaptivni 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 and outage probability of DPSK subcarrier intensity modulated free space optics in fully developed speckle. [PDF]
, 2009 In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment.
Ghassemlooy, Zabih +2 more
core +2 more sources
BER-Constrained Power Allocation for Uplink NOMA Systems with One-Bit ADCs
MathematicsThis 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
Bit Error Rate (BER) Performance of MIMO Systems in M QAM with Nonlinear Effect
International Journal of Engineering and Advanced Technology, 2019 Out object in this paper it to study, the effect of nonlinearity on the bit error rate (BER) of MIMO systems in M-QAM modulation techniques. We consider Saleh’s model (power amplifier model) for the nonlinearity, and apply the nonlinear model on MIMO system with receiver diversity and transmitter diversity.
Ahmed E. Zakzouk +2 more
openaire +1 more source
Performance Metrics for Systems with Soft-Decision FEC and Probabilistic Shaping
, 2017 High-throughput optical communication systems utilize binary soft-decision forward error correction (SD-FEC) with bit interleaving over the bit channels. The generalized mutual information (GMI) is an achievable information rate (AIR) in such systems and
Agrell, Erik +2 more
core +1 more source
Super‐Robust Telecommunications Enabled by Topological Half‐Supermodes
Advanced Science, EarlyView.Through topological half‐supermode engineering, we realize a valley‐ridge gap waveguide that is directly compatible with conventional waveguides and features topological protection. This design halves the lateral size via a PEC boundary, enabling direct TE₁₀‐mode matching and robust bend‐immune transmission.
Rui Zhou +8 more
wiley +1 more source