Results 111 to 120 of about 44,063 (255)

Analisa Kinerja Pengkodean Kanal Type Reed Solomon Coding pada Kualitas Transmisi Citra

open access: yesJurnal Nasional Teknik Elektro, 2018
In the telecommunication systems, the data like audio, image, and video are transmitted to a receiver through a communication channel. However, the presence of noise and fading in the channel will degrade its performance. The degradation may cause error
Baharuddin Abbas
doaj   +1 more source

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

open access: yesJournal 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  

Implementasi Hybrid DS/FH Spread Spectrum menggunakan DSK TMS302C6416T

open access: yesJurnal Teknik ITS, 2014
Spread spectrum adalah sebuah metode komunikasi dimana semua sinyal komunikasi disebar di seluruh spektrum frekuensi yang tersedia. Sinyal informasi akan ditebarkan pada seluruh pita frekuensi yang disediakan dan dilakukan secara acak.
Aji Wisnu Laksita   +2 more
doaj  

On the designand performance of nonbinary LDPC codes on burst errorchannels

open access: yesTongxin xuebao, 2013
Taking structured Q -ary irregular repeat-accumulate (S-QIRA) codes as an example, the burst-error-correcting capability of QLDPC codes was analyzed preliminarily by comparison with the burst-error-correcting capability of binary LDPC codes (BLDPC)and ...
Bo ZHANG   +3 more
doaj   +2 more sources

基于重叠与正交信号的超宽带系统性能研究

open access: yesGuangtongxin yanjiu, 2007
文章首先介绍了跳时超宽带(TH-UWB)信号,推导了在加性高斯白噪声(AWGN)信道条件和多径条件(MP)下,基于重叠和正交脉冲信号的系统误码率公式,并给出了仿真结果。仿真结果表明,在AWGN信道条件下,基于重叠脉冲信号的跳时二进制脉位调制(TH-BPPM)系统的性能优于基于正交脉冲信号的系统。多径条件下的正交TH-BPPM系统的性能优于AWGN信道条件下的系统性能。
王树立, 周杰, 姚克友, 王鹏
doaj  

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

open access: yesWasit 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   +2 more
doaj   +1 more source

Second-Order Identification Capacity of AWGN Channels

open access: yes2024 IEEE International Symposium on Information Theory (ISIT)
7 pages, 3 figures, 1 table. This paper has been accepted by IEEE ISIT 2024. In response to the reviewer's feedback, we have incorporated additional references and refined the content in the introduction section and we replace some figures as the pdf ...
Liu, Zhicheng   +5 more
openaire   +2 more sources

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