Results 61 to 70 of about 2,369 (180)

Analyzing Performance of Eigenvalue-based Spectrum Sensing within LoRaCog Framework

Journal of Telecommunications and Information Technology
The CR technology enhances spectrum utilization by allowing access to unused licensed channels, while spectrum sensing allows secondary users to verify channel availability before the transmission.
Batool Jaafar Bashar, Hikmat Abdullah
doaj   +1 more source

Channel estimation method for IRS assisted mine communication system based on self supervised learning

Gong-kuang zidonghua
A channel estimation method for intelligence reflecting surface (IRS) assisted mine communication system based on self supervised learning (SSL) is proposed to address the problems of multipath fading, non line of sight communication, and difficulty in ...
WANG Anyi, LI Xinyu, LI Mingzhu, LI Ruoman   +3 more
doaj   +1 more source

Modeling of UWB System Based on MB-OFDM in Coal Mine Environment and Its Performance Analysis

Gong-kuang zidonghua, 2010
For frequency selective fading of UWB wireless commurtication system caused by multi-path spread in coal mine environment,appling MB-OFDM technology with advantage of anti-multipath delay in underground UWB system was proposed.In order to make up for ...
WANG Xi
doaj  

Decoding of polar-coded OFDM systems over multipath fading channels with interleaving and channel state information

Scientific Reports
In this paper, we investigate the decoding performance and corresponding decoding strategies for polar-coded orthogonal frequency division multiplexing (OFDM) system operating under multipath fading channels.
Mingbao Wu, Yi Yu, Fangying Wan, Yanhua Lin, Yong Li, Zhian Zheng   +5 more
doaj   +1 more source

Delay analysis of multi-state Markov channels

Dianxin kexue, 2016
With the rapid development of wireless technology,the wireless communication offers great flexibility and convenience to mobile users.However,due to the slow/fast fading caused by multipath effect,the transmission rate of wireless fading channel is ...
Zhiqiang ZHOU, Tong YE, Dong LI
doaj  

Deep Learning-Based Automatic Modulation Classification for OFDM Signals: From Synthetic Training to OTA Evaluation. [PDF]

Sensors (Basel)
Nelega R, Mezei MM, Polgar ZA, Kovacs G, Puschita E.   +4 more
europepmc   +1 more source

Optimizing 5G NR link layer parameters for eMBB and URLLC applications under dynamic channel and transmission configurations. [PDF]

Sci Rep
Pateriya S, Bandopadhaya S, Bairwa AK, Jain V.   +3 more
europepmc   +1 more source

A Deep Learning-Assisted Multi-Relay DCSK Communication System. [PDF]

Sensors (Basel)
Huang T, Hong S, Chen J, Kang L.
europepmc   +1 more source

A hybrid transformer-zero-shot learning framework with Muon optimization for intelligent channel estimation in MIMO wireless systems. [PDF]

Sci Rep
Salama WM, Aly MH, Alshathri S, El-Shafai W.   +3 more
europepmc   +1 more source