Results 81 to 90 of about 4,021,406 (264)
IET Communications, Volume 20, Issue 1, January/December 2026.This work extends the Polyanskiy‐Poor‐Verdu (PPV) framework to lognormal wireless links. Specifically, the paper derives a closed‐form approximation for the average error probability under lognormal distribution, effectively generalizing the PPV analysis beyond the additive white Gaussian noise assumption.
Peng Du, Yuan Zhang
wiley +1 more source
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
, 2007 This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M +3 more
core +1 more source
Transformer‐Enhanced Multi‐Satellite IRS Coordination for Next‐Generation LEO Communications
IET Communications, Volume 20, Issue 1, January/December 2026.This paper introduces a novel transformer‐enhanced framework for multi‐satellite intelligent refelecting surfaces (IRS) coordination that addresses these fundamental limitations through physics‐informed neural architectures incorporating orbital dynamics modelling, multi‐head self‐attention mechanisms for temporal dependency capture across rapidly ...
Ali Hussein Radhi +2 more
wiley +1 more source
Optical distribution of OFDM and impulse-radio UWB in FTTH networks
, 2008 Proposal, experimental demonstration and performance comparison of impulse-radio UWB and OFDM UWB distribution in FTTH networks for high-definition audio/video broadcasting is presented.
Marti, Javier +13 more
core +1 more source
Hierarchical Multi‐Stage Frequency Offset Estimation for THz Communications
IET Communications, Volume 20, Issue 1, January/December 2026.This paper proposes a hierarchical multi‐stage frequency offset estimation framework for heterodyne terahertz communications. The receiver combines coarse spectral acquisition, confidence‐guided triggering, adaptive grid search and fine time‐domain correlation refinement to handle ultra‐large carrier frequency offsets under low‐signal‐to‐noise ratio ...
Haolin Zhang +4 more
wiley +1 more source
Orthogonal Frequency Division Multiplexing With Joint Subblocks Index Modulation
IEEE Access, 2019 Recently, orthogonal frequency division multiplexing (OFDM) with index modulation has emerged as promising technologies with the improvement of spectral efficiency and energy efficiency, which carries additional index bits through the index domain.
Yuxin Shi +4 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 +2 more
wiley +1 more source
Spread Spectrum OFDM-IM With Efficient Precoded Matrix and Low Complexity Detector
IEEE AccessThis paper introduces a novel scheme that employs efficient precoded matrices for index modulation orthogonal frequency division multiplexing namely (EP-OFDM-IM).
Ahmed Waheed, Somayeh Mohammady
semanticscholar +1 more source
Deep‐Learned Channel Estimation for MIMO‐OFDM System by Exploiting Frequency‐Space Correlation
Electronics Letters, Volume 62, Issue 1, January/December 2026.In massive MIMO–OFDM systems, accurate channel state information acquisition is vital for reliable transmission. Traditional methods fail to fully exploit sparse channel correlation, so an attentive residual autoencoder network is proposed. It uses an autoencoder with attention and residual connections to capture frequency–space correlation, and ...
Yiming Wei +5 more
wiley +1 more source
Data-derived iterative channel estimation with channel tracking for a mobile fourth generation wide area OFDM system [PDF]
, 2003 In this paper an iterative channel estimation technique for a mobile fourth generation coherent orthogonal frequency division multiplexing (OFDM) system is proposed. Coherent detection dictates that a per-subband estimate of the frequency response of the
Nix, AR, Dowler, ASH, McGeehan, JP
core +1 more source