Results 51 to 60 of about 637,226 (201)

Analytic cascaded filterbanks for multicarrier modulation

IET Circuits, Devices & Systems, 2017
Filterbank multicarrier has been proposed as an alternative to rthogonal frequency division multiplexing (OFDM). A uniform Discrete Fourier Transform (DFT) transmultiplexer cannot have maximum packing efficiency while using slowly decaying pulses. Maximally decimated filterbanks and transmultiplexers can be used interchangeably.
RAJAN, A, SHAH, H, SANGWAN, V, BHADAURIA, I, GADRE, VM   +4 more
openaire   +3 more sources

Joint 2‐D LFM Modulation and Mismatched Filter Design in Dual‐Function Radar‐Communication System

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a joint 2‐D LFM modulation and mismatched filtering design for military‐grade dual‐function radar‐communication systems. The novel scheme modulates data onto both the initial frequency and chirp rate of LFM pulses, boosting data rates whilst preserving the constant‐envelope property critical for high‐power transmission.
Kehao Wang, Zixuan Zhang, Ke Zhang, Xiaobai Li, Wei Cheng, Tony Quek   +5 more
wiley   +1 more source

PAPR Reduction in the FBMC-OQAM System via Segment-Based Optimization

IEEE Access, 2018
Multicarrier modulation (MCM) schemes have been intensively studied and developed, because of their numerous advantages, which include high data rate and immunity to multipath fading.
Ji-Hyun Moon, Ye-Ri Nam, Jeong-Ho Kim
doaj   +1 more source

RFI Suppression Method for High‐Frequency Passive Bistatic Radar Based on Angle‐Based High‐Order Singular Value Decomposition

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
We propose a multidomain joint orthogonal subspace projection algorithm based on angle‐based high‐order singular value decomposition (HOSVD). By constructing a three‐dimensional range‐Doppler‐angle tensor from multidirectional beamformed data, the method exploits the distinct spatial directivity and strong range correlation of the RFI to jointly ...
Chunlin Sun, Zeyu He, Yiming Wang, Xingpeng Mao   +3 more
wiley   +1 more source

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam, Anuar Mat Safar, Norizan Mohamed Nawawi, Mohd Nordin Junita, Aymen Abdalmunam Hameed, Ridha Ejbali   +5 more
wiley   +1 more source

Supply–Demand Collaborative Optimization for a Hydrogen‐Driven Park’s Zero‐Carbon Integrated Energy System

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Hydrogen‐driven zero‐carbon energy system is one of the effective paths to realize the construction of zero‐carbon parks. However, the optimal scheduling of hydrogen‐driven integrated energy system (IES) faces significant challenges, including the intermittency of renewable energy, the dynamic characteristics of hydrogen production and storage, and the
Kun Liu, Feng Gao, Zhanbo Xu, Jiang Wu, Palanisamy R.   +4 more
wiley   +1 more source

Filter Bank Multicarrier Communication With Real Part and Imaginary Part Index Modulation

IEEE Open Journal of the Communications Society
This paper presents a novel variant of filter bank multicarrier (FBMC) communication, which carries additional bits through mapping the real and imaginary parts of the symbol to the active time-frequency (TF) points, called FBMC with real part and ...
Yunan Zhu, Haining Huang, Zhanqing Pu, Biao Wang, Yu Li   +4 more
doaj   +1 more source

Joint Decoupling Optimization of Frequency Offsets and Array Elements for Frequency Diverse Arrays

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Frequency diverse array (FDA) has a distance‐angle–dependent beam direction map, which has a greater application advantage than phased array. However, due to the distance‐angle coupling and periodicity of its beam direction map, it makes the parameter information of the target obtained through FDA have ambiguous phenomena. Currently, researchers mostly
Yuming Lu, Qinlin Li, Kefei Liao, Ningbo Xie, Hanbo Chen, Giovanni Magno   +5 more
wiley   +1 more source

Single Carrier Cyclic Prefix-Assisted CDMA System with Frequency Domain Equalization for High Data Rate Transmission

EURASIP Journal on Wireless Communications and Networking, 2004
Multiple-access interference and interfinger interference limit the capacity of conventional single-carrier DS-CDMA systems. Even though multicarrier CDMA posses the advantages of conventional CDMA and OFDM, it suffers from two major implementation ...
Madhukumar A. S., Chin Francois, Liang Ying-Chang, Yang Kai   +3 more
doaj   +2 more sources

Multicarrier dual-index permuted chaos shift keying system for efficiency improvement in chaotic communications

ETRI Journal
We propose a multicarrier chaotic system that incorporates dual-index and M-ary modulation techniques. The proposed system improves the energy andspectrum efficiencies with a tradeoff in computational complexity.
Bavatharani Gurusamy, Laxmikandan Thangavelu, Manimekalai Thirunavukkarasu   +2 more
doaj   +1 more source