Results 61 to 70 of about 1,658 (180)

Detection Algorithm of BPSK Signal of Parameter-Adjusted Bistable Stochastic Resonance Model Based on Scale Change

IEEE Access, 2020
Given that signal is weakened to a certain extent in the process of noise suppression using mainstream method, and that new noise is introduced by signal processing system, causing the decrease of detection performance, to improve the performance of ...
Xiangyu Fan, Peng Bai, Xiaolong Liang, Jiaqiang Zhang, Bin Liu   +4 more
doaj   +1 more source

A Constrained Deep Reinforcement Learning Framework for Beamforming Optimization With QoS Guarantees in RIS‐Assisted Symbiotic Radio Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
To address the complex constrained optimization in time‐varying reconfigurable intelligent surface–assisted symbiotic radio networks, this paper proposes a novel deep reinforcement learning (DRL) approach integrating Lagrange dual optimization into deep deterministic policy gradient framework.
Jing Li, Wei Zhang, Jian Ma, Guoyun Cao, Yunfei Chen, Feihong Chu, Li Chen   +6 more
wiley   +1 more source

Analisis Kinerja Jaringan 5G dengan Pengkodean QC-LDPC dan Polar

Jurnal Elkomika
ABSTRAK Jaringan 5G telah menjadi penanda penting dalam evolusi teknologi nirkabel yang menawarkan kecepatan dan kinerja yang luar biasa untuk memenuhi kebutuhan konektivitas yang semakin meningkat.
RENI DYAH WAHYUNINGRUM, MELINDA BR GINTING, KHOIRUN NI’AMAH, SOLICHAH LARASATI   +3 more
doaj   +1 more source

Secret Key Extraction Using Stable Channel Impulse Response in OFDM Wireless Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
The process of converting a complex impulse response (CIR) highest peak into a binary sequence is called ‘quantisation’. By quantising the CIR highest peaks, Alice and Bob will generate the secret key bit sequences KA and KB, respectively. The number of CIR highest peaks is infinite, and these highest peaks can be easily selected from the set of CIRs ...
Dinh Van Linh, Vu Van Yem, Hoang Thi Phuong Thao   +2 more
wiley   +1 more source

Chirp pseudo‐noise signal and its receiving scheme for LEO enhanced GNSS

IET Radar, Sonar & Navigation, 2022
Low earth orbit (LEO) constellations for enhancing global navigation satellite systems (GNSS) have been investigated and studied due to their higher floor power and rapid geometric changes. Compared with GNSS based on medium orbit (MEO) and geostationary
Xin Zhao, Xinming Huang, Xiaomei Tang, Xiaochao Feng, Guangfu Sun   +4 more
doaj   +1 more source

Adaptive Satellite Selection via Deep Reinforcement Learning for Dynamic Emergency Scenarios

IET Communications, Volume 20, Issue 1, January/December 2026.
This work proposes a reinforcement learning–based satellite handover framework designed for emergency communication scenarios. The method adaptively responds to bandwidth and CNR fluctuations, achieving improved link stability under both deterministic and stochastic disturbances.
Ke Chen, Li Zhang, Qihang Jiao, Samuel Krain   +3 more
wiley   +1 more source

Ber analysis of the box relaxation for BPSK signal recovery [PDF]

2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016
We study the problem of recovering an $n$-dimensional vector of $\{\pm1\}^n$ (BPSK) signals from $m$ noise corrupted measurements $\mathbf{y}=\mathbf{A}\mathbf{x}_0+\mathbf{z}$. In particular, we consider the box relaxation method which relaxes the discrete set $\{\pm1\}^n$ to the convex set $[-1,1]^n$ to obtain a convex optimization algorithm followed
Thrampoulidis, Christos, Abbasi, Ehsan, Xu, Weiyu, Hassibi, Babak   +3 more
openaire   +3 more sources

Exact Analysis of SIR Performance for the Mobile OFDM Communication Systems Over the Underwater Acoustic Channel

Electronics Letters, Volume 62, Issue 1, January/December 2026.
1.This paper develops an analytical model to calculate the signal‐to‐interference ratio performance of mobile orthogonal frequency division multiplexing underwater acoustic (UWA) communication systems. 2.The model accounts for UWA channel distortion and non‐uniform Doppler effects, maintaining high accuracy across a range of Doppler shift magnitudes. 3.
Xinyu Liu, Xiaowei Li, Mingyang Lu, Yuhang Gao, Miao Yu   +4 more
wiley   +1 more source

Perancangan Sistem Modulator Binary Phase Shift Keying

Techne, 2016
Sistem yang dibangun adalah sebuah modul sistem modulator BPSK (Binary Phase Shift Keying). Perangkat yang dibahas adalah modulator BPSK dengan frekuensi 10kHz-48kHz dan untuk transmisi secara nirkabel ditambahkan pemancar FM yang akan mentranslasikan ...
Deddy Susilo, Budihardja Murtianta, Arivia Aurelia Devina P.   +2 more
doaj   +1 more source

Ambiguity Function Optimization Based on Joint Communication and Sensing Waveform

Electronics Letters, Volume 62, Issue 1, January/December 2026.
The sidelobe suppression strategy proposed in this study demonstrates significant advantages. Its ability to effectively reduce ambiguity function sidelobes has important practical significance for engineering. ABSTRACT The ambiguity function (AF) plays a critical role in joint communication and sensing (JCAS) systems. In this letter, we design a novel
Zheming Guo, Baixiao Chen
wiley   +1 more source