Results 61 to 70 of about 9,316 (215)

Performance Evaluation of a Standalone OFDM System for Digital Image Transmission over AWGN Channels

Journal of Innovation Information Technology and Application
This study investigates the performance of a standalone digital communication system based on Orthogonal Frequency Division Multiplexing (OFDM) for digital image transmission over Additive White Gaussian Noise (AWGN) channels. The system was tested using
Ade silvia handayani, Sarjana, Aryanti, Nurhajar Anugraha, Muhammad Hanif Fatin, Devi Wahyuni, Muhammad Rafly Wijaya, Dely Andini   +7 more
doaj   +1 more source

Sistem Modulator dan Demodulator BPSK dengan Costas Loop

Techne, 2015
Pada tulisan ini akan dibahas suatu sistem transmisi data berbasis BPSK (Binary Phase Shift Keying) menggunakan Costas Loop pada demodulatornya. Pada prinsipnya Costas Loop adalah bentuk khusus dari PLL yang difungsikan untuk melakukan demodulasi sinyal ...
Budihardja Murtianta
doaj   +1 more source

Turbulence‐Resilient Coherent Receiver Array on CMOS‐Compatible Silicon Photonics for Free Space Optical Communications

Nanophotonics, Volume 15, Issue 5, 16 March 2026.
A CMOS‐compatible silicon‐photonic 4 × 4 coherent receiver array spatially samples turbulence‐distorted wavefronts and, with maximum‐ratio combining, enables signal recovery. Experimental BPSK tests under moderate turbulence approach theoretical combining efficiency, reducing BER from 1E‐2 to 1E‐15.
Alireza Fardoost, Fatemeh Ghaedi Vanani, Aneesh Sobhanan, Dhruvkumar Desai, Inwoong Kim, Olga Vassilieva, Paparao Palacharla, Guifang Li   +7 more
wiley   +1 more source

All-optical pattern matching system of 42 Gbit/s 4-bit BPSK signals and its demonstration for optoelectronic firewall

Tongxin xuebao, 2022
To achieve the all-optical pattern matching for optoelectronic firewall which could process high-speed optical signals efficiently, a BPSK all-optical pattern recognition system with the data rate up to 42 Gbit/s was proposed and demonstrated by ...
Qihan ZHANG, Xiaoxue GONG, Rui LI, Xin LI, Shanguo HUANG, Lei GUO   +5 more
doaj   +2 more sources

Active and passive sensors for diagnostics quasi-zenith ionospheric HF communication channels

Физика волновых процессов и радиотехнические системы
Background. There is a growing need for active sensory diagnostics of partial HF channels to provide frequency support to quasi-zenith HF radio links in varying signal propagation conditions.
Dmitry V. Ivanov, Vladimir A. Ivanov, Natalia V. Ryabova, Alexey A. Elsukov   +3 more
doaj   +1 more source

Performance Analysis of CA‐Polar Code for 5G‐IoT Low Power Wide Area Networks

Internet Technology Letters, Volume 9, Issue 2, March/April 2026.
ABSTRACT CRC‐Aided Polar (CA‐Polar) codes are the standardized channel coding scheme for control channels of 5G eMBB service class due to their capacity achieving performance. This work aims to assess the compatibility and scalability of CA‐Polar codes toward low power IoT applications coming under the domain of LPWAN.
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

PERAN BADAN PENYELESAIAN SENGKETA KONSUMEN (BPSK) DALAM PENYELESAIAN SENGKETA KONSUMEN TERKAIT GOOD GOVERNANCE (Studi Kasus di BPSK Kota Medan)

Jurnal Mercatoria, 2017
Hukum perlindungan konsumen dewasa ini mendapat cukup perhatian karena menyangkut aturan-aturan guna mensejahterakan masyarakat. Di kota Medan, BPSK memiliki peran yang sangat penting sebagai lembaga yang ditunjuk untuk menyelesaikan sengketa konsumen ...
Superry Daniel Sitompul, Januari Siregar
doaj  

The Comparative Analysis of Consumer Dispute Resolution in The Karawang Court and Consumer Dispute Resolution Agency (BPSK)

Alauddin Law Development Journal
Indonesian Consumer Protection Law which controls the assurance of shoppers affirms in Article 1 passage (1) that shopper security is any exertion that ensures the presence of legitimate certainty to supply security to shoppers.
Wulan Sri Rahayu, Yuniar Rahmatiar
doaj   +1 more source

A Spectral‐Spatial Dual Encoder With Bio‐Inspired Swarm Adaptation for Cognitive Spectrum Sensing Using Real‐World RF Signal Data

IET Communications, Volume 20, Issue 1, January/December 2026.
The proposed model includes a dual‐stream deep learning architecture which has a 1D convolutional neural network (CNN)‐based spectral encoder and a graph convolutional network (GCN)‐based spatial encoder for extracting the frequency‐domain and node‐topology features. Experimental analysis of the proposed model is performed using the Real‐World Wireless
P. Ramakrishnan, C. Kumar, R. Saravana Kumar, Sourav Barua   +3 more
wiley   +1 more source

An Improved Flip SD Algorithm for Symmetric Polar Codes

IET Communications, Volume 20, Issue 1, January/December 2026.
In this study, an improved flip SD algorithm for symmetric polar codes is proposed. Based on the symmetrical structure, a flipping set is first constructed, which exhibits a reasonable size and a high probability of encompassing unfavourable values.
Yanfeng Li, Xiuyu Yue, Xiangcheng Li, Youming Sun, Haiqiang Chen   +4 more
wiley   +1 more source