Results 41 to 50 of about 511 (153)

Multitone jamming of hybrid SFH/DS-MFSK communication systems

open access: yesElectronics Letters, 1990
The performance of hybrid SFH/DS-MFSK systems under partial band multitone jamming is considered. The BER equation derived is appropriate for communication signals consisting of many M-ary symbols per DS code period, jammed by equally-spaced tones with random phase and possibly tone placement errors.
openaire   +1 more source

On Maximum-Likelihood Detection for Non-coherent FH/BFSK in Multitone Jamming

open access: yesJournal of Computers, 2006
We derive the optimum maximum-likelihood (ML) non-coherent detector for FH/BFSK systems in the environment of multitone jamming and additive white Gaussian noise with no aid of jamming state indication and the resultant signal-plus- jammer tone, which, however, were required in K. C. Teh’s previous work [1].
openaire   +1 more source

On the UWB system coexistence with GSM900, UMTS/WCDMA, and GPS [PDF]

open access: yes, 2002
This paper evaluates the level of interference caused by different ultra-wideband (UWB) signals to other various radio systems, as well as the performance degradation of UWB systems in the presence of narrowband interference and pulsed jamming.
Hovinen, Veikko   +4 more
core   +1 more source

An iALM-ICA-based Anti-Jamming DS-CDMA Receiver for LMS Systems

open access: yes, 2018
We consider a land mobile satellite communication system using spread spectrum techniques where the uplink is exposed to MT jamming attacks, and the downlink is corrupted by multi-path fading channels. We proposes an anti-jamming receiver, which exploits
Jung, Hyoyoung   +4 more
core   +1 more source

Covert Communication Networks in Hostile Environments

open access: yes, 2018
Security and Communication Networks, Volume 2018, Issue 1, 2018.
Kiseon Kim   +2 more
wiley   +1 more source

Intelligent OFDM telecommunication system. Part 1. Model of complex and quaternion systems [PDF]

open access: yes, 2019
In this paper, we aim to investigate the superiority and practicability of many-parameter transforms (MPTs) from the physical layer security (PHY-LS) perspective. We propose novel Intelligent OFDM-telecommunication systems based on complex and quaternion
Labunets, V. G., Ostheimer, E. V.
core  

Kajian Penggunaan Standar Mobile Wimax untuk Sistem Komunikasi Taktis Militer [PDF]

open access: yes, 2012
Sistem komunikasi taktis merupakan sistem komunikasi yang diterapkan di area yang luas dengan kriteria tertentu diantaranya mampu menjadi Super Network akibat banyaknya unit yang bergabung dalam sebuah operasi militer, menuntut transfer data yang relatif
Harsono, Dyah Ayu Kusumaningtyas   +2 more
core   +2 more sources

Timing and Carrier Synchronization in Wireless Communication Systems: A Survey and Classification of Research in the Last 5 Years [PDF]

open access: yes, 2016
Timing and carrier synchronization is a fundamental requirement for any wireless communication system to work properly. Timing synchronization is the process by which a receiver node determines the correct instants of time at which to sample the incoming
Blostein, Steven D.   +4 more
core   +2 more sources

Performance analysis of FFH/MFSK receivers with self-normalization combining in the presence of multitone jamming [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2002
An analytical study is presented for the performance of fast frequency-hopping (FFH) self-normalized orthogonal M-ary frequency-shift-keyed (MFSK) noncoherent receivers in the presence of multitone jamming. The multiple equal-power jamming tones are assumed to correspond to some of the possible FFH/M-ary orthogonal signaling tones.
Chen, J, Wang, J
openaire   +3 more sources

Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey

open access: yes, 2014
This paper provides a comprehensive review of the domain of physical layer security in multiuser wireless networks. The essential premise of physical-layer security is to enable the exchange of confidential messages over a wireless medium in the presence
Fakoorian, S. A. A.   +3 more
core   +1 more source

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