Results 21 to 30 of about 101 (82)
Implementasi Hybrid DS/FH Spread Spectrum menggunakan DSK TMS302C6416T
Jurnal Teknik ITS, 2014 Spread spectrum adalah sebuah metode komunikasi dimana semua sinyal komunikasi disebar di seluruh spektrum frekuensi yang tersedia. Sinyal informasi akan ditebarkan pada seluruh pita frekuensi yang disediakan dan dilakukan secara acak.
Aji Wisnu Laksita +2 more
doaj
Kajian Implementasi Standar Long-Term Evolution (LTE) pada Sistem Komunikasi Taktis Militer
Jurnal Teknik ITS, 2012 Sistem komunikasi taktis memungkinkan banyak pengguna dengan mobilitas tinggi, memiliki kemampuan network recovery dan network entry yang baik, serta diperkuat dengan sistem keamanan transmisi yang tahan terhadap jamming.
Aris Pradana +2 more
doaj
Jurnal Teknik ITS, 2015 Dalam sistem komunikasi nirkabel, khususnya pada dunia komunikasi taktis atau militer, salah satu yang harus dihadapi adalah gangguan jamming.Salah satu sistem yang dapat mengatasi masalah tersebut adalah Direct Sequence Spread Spectrum (DSSS) dimana ...
Aditya Sukmana Putra +2 more
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Implementasi Direct Sequence Spread Spectrum pada DSK TMS320C6416T
Jurnal Teknik ITS, 2014 Spread spectrum merupakan teknik pengiriman sinyal yang tahan terhadap gangguan dan mempunyai tingkat keamanan informasi yang cukup tinggi pada saat pengiriman. Salah satu teknik spread spectrum yang dikembangkan adalah direct sequence.
Nanang Arif Haryadi +2 more
doaj
Multitone jamming of hybrid SFH/DS-MFSK communication systems
Electronics 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
Covert Communication Networks in Hostile Environments
, 2018 Security and Communication Networks, Volume 2018, Issue 1, 2018.
Kiseon Kim +2 more
wiley +1 more source
Multitone jamming rejection of FFH/BFSK linear-combiningreceiver over Rayleigh-fadingchannels
Electronics Letters, 1998 A computationally efficient BER expression for an FFH/BFSK linear-combining receiver against multitone jamming and AWGN over Rayleigh-fading channels is derived based on a Taylor series expansion. The analytical expression, validated by simulation results, allows us to efficiently analyse the system performance with higher diversity levels, which is ...
K.C. Teh, A.C. Kot, K.H. Li
openaire +1 more source
Performance Analysis of the Optimal Multitone Jamming for a MFSK-FH System
The analysis and evaluation of jamming becomes very important with the strain of spectrum resources and the intensification of electronic countermeasures. In order to deepen the understanding of the mechanism of multitone jamming (MTJ) on multiple frequency shift keying and frequency-hopping (MFSK-FH) system, as well as support the communication ...
Wenji Li +4 more
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LoRaWAN Physical Layer-Based Attacks and Countermeasures, A Review. [PDF]
Sensors (Basel), 2022 Ruotsalainen H +3 more
europepmc +1 more source
IET Communications, 2016 Conventionally, fast frequency hopping (FFH) is regarded as a non‐coherent system, which has inevitable shortcomings in low spectral efficiency. To achieve a high spectral efficiency while maintaining a favourable bit error ratio (BER) performance in FFH systems, in this study, the authors extend their previously proposed subset‐based coherent FFH (S ...
Yishan He +6 more
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