Results 101 to 110 of about 12,277 (211)

ORTHOGONAL CHAOTIC VECTORS BASED ON RIKITAKE SYSTEM FOR CODE DIVISION MULTIPLE ACCESS APPLICATIONS

Journal of Engineering and Sustainable Development, 2015
The use of chaotic sequences which have low cross-correlation can be useful for spreading the direct sequence code division multiple access (DS-CDMA) system.
Ali Abd Radhi
doaj  

Comparative Performance Analysis of Forward Error Correction Schemes in AX.25-Based APRS Communication Systems with AFSK Modulation using GNU Radio Simulation

International Islamic University Malaysia Engineering Journal
This paper presents a comparative analysis of Forward Error Correction (FEC) schemes in AX.25-based Automatic Packet Reporting System (APRS) communications using AFSK modulation through GNU Radio simulations.
Rifki Ardinal, Agfianto Eko Putra, Wahyudi Hasbi, Eriko Nasemudin Nasser, Widya Roza   +4 more
doaj   +1 more source

Embedding Strength Criteria for AWGN Watermark, Robust Against Expected Distortion [PDF]

, 2012
In this paper we engage in AWGN watermark for grayscale image (the message is embedded by adding of white Gaussian noise matrix; detection is blind, correlation based).
Vučković, Vesna
core  

Estimating wideband bit error rates using pilot tone envelope fading statistics [PDF]

, 1993
In this paper a number of techniques are investigated for predicting the performance of a digital system in fading channels. A method is presented which combines both bit error rate simulation and site-specific channel characterisation using ray tracing ...
Nix, AR, Anderson, HR, McGeehan, JP
core  

Performance Evaluation of Doppler Effect in HST at mmWave in 100 GHz Sub-Band with presence of Distortion and AWGN

Wasit Journal of Engineering Sciences
Managing Doppler effects can be considered a critical technical challenge to ensure stable and efficient communication over millimeter Waves (mm Wave)in 5G networks, especially in high-mobility environments.the combined effects of Doppler shift and AWGN
Maha Fakhri Abbbas, Basim K. J. Al-shammari, Ahmed Magdy   +2 more
doaj   +1 more source

Channel coding for non-AWGN environments

, 1995
The reliable transmission of information constitutes the fundamental problem of communication theory. An important component of achieving this goal is use of appropriate channel coding which constitutes the broad subject of this work.
Jelicic, Branko D
core  

Media-based Modulation: Converting Static Rayleigh Fading to AWGN

, 2014
—It is shown in [1] that embedding information in the (intentional) variation of the transmission media (end-to-end channel) can offer significant gains vs. traditional SISO, SIMO and MIMO systems.
Amir K. Khandani
core   +1 more source

Parametric SNR Estimation Based on Auto-Regressive Model in AWGN Channels

, 2020
⎯Signal-to-noise ratio (SNR) estimation for signal which can be modeled by Auto-regressive (AR) process is studied in this paper. First, the conventional frequency domain method is introduced to estimate the SNR for the received signal in additive white ...
Dan-Ping Bai, Qun Wan, Xian-Sheng Guo, Yan Wang   +3 more
core  

An modified beyond belief propagation algorithm over AWGN channel

, 2013
Conference Name:13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013. Conference Address: Surat Thani, Thailand.
Lv, Yibo, 王琳, Wang, Lin
core  

ANALISA UNJUK KERJA CDMA 2000 1X PADA KANAL AWGN DAN RAYLEIGH FADING [PDF]

, 2011
Komunikasi radio seluler adalah salah satu yang paling menantang dari aplikasi teknologi telekomunikasi. Tujuan dari teknologi radio seluler ini adalah penyedian keandalan sistem yang efektif dan ongkos suara, video atau data yang murah kepada setiap ...
Olivia Nur, Levy
core