Results 31 to 40 of about 167,608 (323)
IEEE Access, 2019 Security has become an extremely important research topic in wireless networks over the last decade, as it is intimately related to both individual privacy and national security.
Feng Shu +4 more
doaj +1 more source
Throughput sensitivity to antenna pattern and orientation in 802.11n networks [PDF]
, 2011 In this paper the throughput and packet error rate for an in-home 802.11n network is theoretically derived for two different types of 3x3 antenna configurations.
Halls, DE +4 more
core +2 more sources
Design of OAM Beam Directional Modulation Signal in Communication and Guidance Integration [PDF]
Radioengineering, 2020 An orbital angular momentum directional modulation (OAM-DM) signal is proposed for communication and guidance integration. This signal is transmitted by a uniform circular antenna array (UCA). We divide the array into odd and even antenna groups.
C. Zhu, M. Song, X. Dang
doaj
Transmitted Data Security in Non-Orthogonal Multiple Access Networks with Directional Modulation Based on User Location [PDF]
International Journal of Information and Communication Technology Research, 2023 In Non-orthogonal multiple access, a user with a weaker channel gain is assigned more power than a user with a stronger channel. This type of power allocation allows the strong user (SU) to apply the successive interference cancellation (SIC) method that
Sepahdar Falsafi, HamidReza Khodadadi
doaj
Journal of Algebra, 1992 Directing modules play an important role in the representation theory of algebras. They have many good properties, for example, they are determined by their composition factors. Let \(A\) be an Artin algebra. Following \textit{C. M. Ringel} [Tame algebras and integral quadratic forms, (Lect. Notes Math.
Skowroński, Andrzej, Smalø, Sverre O
openaire +2 more sources
Robust Beamforming Design for Secure DM-Based Relay Networks With Self-Sustained Jammers
IEEE Access, 2019 In this paper, we propose to use self-sustained jammers to generate artificial noise with the aim of enhancing the physical layer security of a directional modulation (DM) relay system.
Xiaobo Zhou +4 more
doaj +1 more source
Axionic dark matter signatures in various halo models [PDF]
, 2016 In the present work we study possible time signatures Axion Dark Matter searches employing resonant cavities for various halo models. We study in particular the time dependence of the resonance width (modulation) and possible asymmetries in directional ...
Semertzidis, Y., Vergados, J. D.
core +3 more sources
A Leakage-Based Directional Modulation Scheme for Frequency Diverse Array in Robot Swarm Networks
IEEE Access, 2020 Robot swarms, which constitute typical multi-user systems, have played more and more important roles in many areas. In this paper, a directional modulation (DM) scheme for frequency diverse array (FDA) based on the leakage power minimization criterion is
Sheng Ke +3 more
doaj +1 more source
Directional modulation techniques for secure wireless communication: a comprehensive survey
EURASIP Journal on Wireless Communications and Networking, 2022 Directional Modulation (DM) techniques provide wireless communication security against passive eavesdropping by means of specific physical layer characteristics.
Omar Ansari, Muhammad Amin
doaj +1 more source
Theta-modulated place-by-direction cells in the hippocampal formation in the rat [PDF]
, 2004 We report the spatial and temporal properties of a class of cells termed theta-modulated place-by-direction (TPD) cells recorded from the presubicular and parasubicular cortices of the rat. The firing characteristics of TPD cells in open-field enclosures
Burgess, N +4 more
core +1 more source