Results 51 to 60 of about 511 (153)

Implementasi Frequency Hopping Spread Spectrum (FHSS) Pada DSK TMS320C6416T [PDF]

open access: yes, 2014
Teknik Spread Spectrum (spektral tersebar) merupakan salah satu jenis teknik pengiriman sinyal yang tahan terhadap gangguan berupa noise maupun jamming.
Muhammad, O. A. (Ocki)   +2 more
core  

Mellin Transform Based Performance Analysis of Fast Frequency Hopping Using Product Combining

open access: yes, 2006
—In this contribution, we analyze the bit error rate (BER) performance of fast frequency hopping (FFH) assisted M-ary frequency shift keying (MFSK) using product combining.
Ahmed, S., Hanzo, L., Yang, L-L.
core  

Index Modulation-based Information Harvesting for Far-Field RF Power Transfer

open access: yes, 2023
While wireless information transmission (WIT) is evolving into its sixth generation (6G), maintaining terminal operations that rely on limited battery capacities has become one of the most paramount challenges for Internet-of-Things (IoT) platforms.
Basar, Ertugrul   +4 more
core  

LoRaWAN Physical Layer-Based Attacks and Countermeasures, A Review. [PDF]

open access: yesSensors (Basel), 2022
Ruotsalainen H   +3 more
europepmc   +1 more source

Maximum-likelihood receiver of FFH/BFSK systemswith multitone jamming and AWGN over Rayleigh-fading channels

open access: yesElectronics Letters, 1999
A maximum-likelihood receiver for fast frequency-hopped binary frequency-shift-keying (FFH/BFSK) systems which operates in an additive white Gaussian noise (AWGN) environment and is subjected to multitone jamming over Rayleigh-fading channels is derived.
Teh, K.C., Lim, T.J.
openaire   +1 more source

A Survey of Air-to-Ground Propagation Channel Modeling for Unmanned Aerial Vehicles

open access: yes, 2018
In recent years, there has been a dramatic increase in the use of unmanned aerial vehicles (UAVs), particularly for small UAVs, due to their affordable prices, ease of availability, and ease of operability.
Aboudebra A.   +101 more
core   +1 more source

Performance evaluation of different jamming strategies over uncoded noncoherent fast frequency hopping MFSK communication systems [PDF]

open access: yes, 2006
The fast frequency-hopping technique is considered one of the most effective Electronic Protective Measures (EPM) for military communications systems in order to mitigate the effect of a follower or repeat jammer. This thesis evaluates the performance of
Karkatzounis, Konstantinos
core  

FH/MFSK performance in multitone jamming [PDF]

open access: yes
The performance of frequency-hopped (FH) M-ary frequency-shift keyed (MFSK) signals in partial-band noise was analyzed in the open literature. The previous research is extended to the usually more effective class of multitone jamming.
Levitt, B. K.
core   +1 more source

Performance evaluations of fast frequency-hopped spread-spectrum communication systems with partial-band noise jamming and multitone jamming

open access: yes, 1998
This thesis contains the formulations on theoretical performance analyses of var-ious fast frequency-hopped (FFH)binary frequency-shift-keying (BFSK)spread-spectrum (SS)systems with different jamming and channel environments. Two types of commonly encountered jamming waveforms, namely, the partial-band noise jamming (PBNJ)and the multitone jamming (MTJ)
openaire   +2 more sources

Performance Study of Hybrid Spread Spectrum Techniques [PDF]

open access: yes, 2005
This thesis focuses on the performance analysis of hybrid direct sequence/slow frequency hopping (DS/SFH) and hybrid direct sequence/fast frequency hopping (DS/FFH) systems under multi-user interference and Rayleigh fading.
Sharma, Yachna
core   +1 more source

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