Results 31 to 40 of about 511 (153)
Channel Estimation for MIMO MC-CDMA Systems [PDF]
, 2011 The concepts of MIMO MC-CDMA are not new but the new technologies to improve their functioning are an emerging area of research. In general, most mobile communication systems transmit bits of information in the radio space to the receiver.
Rajalakshmi, R. +2 more
core +2 more sources
Erasure Insertion in RS-Coded SFH MFSK Subjected to Tone Jamming and Rayleigh Fading
, 2005 The achievable performance of Reed Solomon (RS) coded slow frequency hopping (SFH) assisted M-ary frequency shift keying (MFSK) using various erasure insertion (EI) schemes is investigated, when communicating over uncorrelated Rayleigh fading channels in
Ahmed, S., Hanzo, L., Yang, L-L.
core +1 more source
On the Antijamming Performance of the NR‐DCSK System
Security and Communication Networks, Volume 2018, Issue 1, 2018., 2018 This paper investigates the antijamming performance of the NR‐DCSK system. We consider practical jamming environments including broadband jamming (BBJ), partial‐time jamming (PTJ), tone jamming (TJ), and sweep jamming (SWJ). We first analytically derived the bit error rates of the system under the BBJ and the PTJ.
Binh Van Nguyen +3 more
wiley +1 more source
Advanced Intelligent Systems, Volume 6, Issue 8, August 2024.This article reviews intelligent communication anti‐jamming evolution from adaptive methods to game theory and machine learning advancements. The concept of intelligent anti‐jamming is defined, and a system architecture is proposed. It highlights challenges, research findings, and future directions, aiming to provide a comprehensive understanding and ...
Quan Zhou, Yingtao Niu
wiley +1 more source
International Journal of Antennas and Propagation, Volume 2017, Issue 1, 2017., 2017 Interference suppression techniques have been intensively studied in nearly two decades due to their importance for maintaining the integrity and functionality of global navigation satellite system (GNSS). However, the interference suppression method applicable for the complex receiving environment in which there are multitype interfering signals has ...
Qiang Guo +2 more
wiley +1 more source
High resolution adaptive arrays based on random processing techniques: frequency hopping modulation [PDF]
, 1995 A new architecture for adaptive arrays using frequency hopping modulation is addressed. The resolution of the array and the interference rejection increase substantially applying random processing to the carrier frequency of the signals.
Lagunas Hernandez, Miguel A. +1 more
core +1 more source
Analysis of MSK jamming effectiveness based on effective jamming coefficient [PDF]
, 2022 For the problem of communication jamming effectiveness, an effective jamming coefficient was proposed as an evaluation metric based on the correlation between jamming and communication signals, and the impact of orthogonal receivers was analyzed ...
Qian YAN +3 more
core +1 more source
An Improved Lightweight YOLO Algorithm for Recognition of GPS Interference Signals in Civil Aviation
IET Signal Processing, Volume 2024, Issue 1, 2024.Considering several sources that cause global position system (GPS) interference in civil aviation and the challenges faced by interference recognition algorithms in terms of efficiency and accuracy, we propose an improved You Only Look Once (YOLO)v7‐CHS algorithm (YOLOv7‐CHS) and investigate its effectiveness in identifying GPS signals and different ...
Mian Zhong +8 more
wiley +1 more source
Information Security of PHY Layer in Wireless Networks
Journal of Sensors, Volume 2016, Issue 1, 2016., 2016 Since the characteristics of wireless channel are open and broadcasting, wireless networks are very vulnerable to be attacked via eavesdropping, jamming, and interference. As traditional secure technologies are not suitable for PHY layer of wireless networks, physical‐layer security issues become a focus of attention. In this paper, we firstly identify
Weidong Fang +7 more
wiley +1 more source
International Journal of Navigation and Observation, Volume 2014, Issue 1, 2014., 2014 Radio frequency interference detection and mitigation are becoming of paramount importance due to the increasing number of services and applications based on the position obtained by means of Global Navigation Satellite Systems. A way to cope with such threats is the implementation in the receiver of advanced signal processing algorithm able to raise ...
Luciano Musumeci +2 more
wiley +1 more source