Browse Items (25 total)
- Collection: Vol. 21, No. 4 2023
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TELKOMNIKA Telecommunication Computing Electronics and Control
Estimating losses at 40-GHz downlink using non-meteorological techniques in heavy rain areas
The advancement of satellite communication has arisen tremendously where
higher capacity communications systems are needed. Most satellite
engineers are shifting to Ka, Q, and V-band upcoming since the low
frequencies such as below 10 GHz are…
higher capacity communications systems are needed. Most satellite
engineers are shifting to Ka, Q, and V-band upcoming since the low
frequencies such as below 10 GHz are…
TELKOMNIKA Telecommunication Computing Electronics and Control
On the performance of reconfigurable intelligent surface-assisted UAV-to-ground communication systems
In this study, to reduce the average symbol error rate, and improve coverage
and reliability of unmanned aerial vehicles (UAVs) to ground
communication systems. In this case, we propose a reconfigurable intelligent
surfaces (RISs) assisted for UAV…
and reliability of unmanned aerial vehicles (UAVs) to ground
communication systems. In this case, we propose a reconfigurable intelligent
surfaces (RISs) assisted for UAV…
TELKOMNIKA Telecommunication Computing Electronics and Control
Lightweight digital imaging and communications in medicine image encryption for IoT system
Diagnosis in healthcare systems relies heavily on the use of medical images.
Images such as X-rays, ultrasounds, computed tomography (CT) scans,
magnetic resonance imaging (MRIs), and other scans of the brain and other
internal organs of patients…
Images such as X-rays, ultrasounds, computed tomography (CT) scans,
magnetic resonance imaging (MRIs), and other scans of the brain and other
internal organs of patients…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
One to many (new scheme for symmetric cryptography)
Symmetric cryptography will always produce the same ciphertext if the plaintext and the
given key are the same repeatedly. This condition will make it easier for cryptanalysts
to perform cryptanalysis. This research introduces a one-to-many…
given key are the same repeatedly. This condition will make it easier for cryptanalysts
to perform cryptanalysis. This research introduces a one-to-many…
TELKOMNIKA Telecommunication Computing Electronics and Control
Dickson voltage multiplier with 1 to 6 stages for dual-band rectifiers (2.45/5.8 GHz) with low input power
This paper presents the design of highly efficient rectifiers that can operate
at WiFi frequencies (2.45 GHz and 5.8 GHz) and match low input power.
The designed dual-band rectifiers use multi-stage dickson voltage multipliers
(DVM) (from 1 to 6…
at WiFi frequencies (2.45 GHz and 5.8 GHz) and match low input power.
The designed dual-band rectifiers use multi-stage dickson voltage multipliers
(DVM) (from 1 to 6…