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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Energy-efficient speed profile: an optimal approach with fixed running time
Tracking the optimal speed profile in electric train operation has been
proposed as an efficient and feasible solution for not only reducing energy consumption, but also no at costs to upgrading the existing railway systems. This paper focuses on…
proposed as an efficient and feasible solution for not only reducing energy consumption, but also no at costs to upgrading the existing railway systems. This paper focuses on…
TELKOMNIKA Telecommunication, , Computing, Electronics and Control
Planar broadband antenna for 2G/3G systemsComputing, Electronics and Control
A planar antenna with broadband gestalt is presented for mobile networks. The structure of the antenna is made up of a folded dipole pair with an L-figure microstrip coupling line. The microstrip coupling along with the dipoles are attached on a…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Benefits of using TiO2 quantum dots in producing low-cost and high-quality white light-emitting diodes
Quantum dots (QDs) is considered as a potential material for the
improvement of light-emitting diodes (LEDs). However, different from the traditional phosphor materials, they have unique scattering and absorption properties affected by their several…
improvement of light-emitting diodes (LEDs). However, different from the traditional phosphor materials, they have unique scattering and absorption properties affected by their several…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
An effective new iterative CG-method to solve unconstrained non-linear optimization issues
In this paper, we proposed a matrix-free double-search direction based on the
updated parameter file of the double-search direction with a new
mathematical formula for the gamma parameter. When comparing the
numerical results of this algorithm…
updated parameter file of the double-search direction with a new
mathematical formula for the gamma parameter. When comparing the
numerical results of this algorithm…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Design a new notched UWB antenna to rejected unwonted band for wireless communication
This paper presents a slotted design for ultra-wideband (UWB) antenna.
Design of a rectangular UWB antenna covering the frequency range 3.1-10.6
GHz, to achieve notch characteristics in the bands at 3.1-8.4 GHz and 8.6-
10.6 GHz. By changing the…
Design of a rectangular UWB antenna covering the frequency range 3.1-10.6
GHz, to achieve notch characteristics in the bands at 3.1-8.4 GHz and 8.6-
10.6 GHz. By changing the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Extraction of object image features with gradation contour
Image retrieval using features has been used in previous studies including
shape, color, texture, but these features are lagging. With the selection of
high-level features with contours, this research is done with the hypothesis
that images on…
shape, color, texture, but these features are lagging. With the selection of
high-level features with contours, this research is done with the hypothesis
that images on…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
NLP analysis in social media using big data technologies
For timely and efficient reactions to disasters, collecting vital and right
information is essential. In recent decades, social media platforms such as
Twitter, Facebook, Linkedin, Instagram have become valuable sources of
information in disaster…
information is essential. In recent decades, social media platforms such as
Twitter, Facebook, Linkedin, Instagram have become valuable sources of
information in disaster…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Blockchain-based adoption framework for authentic land registry system in Malaysia
Land registration systems are very essential for property ownership
management. The exited land registry systems are less efficient and time-
consuming and expose to human errors. By using blockchain technology,
most of the principles of good…
management. The exited land registry systems are less efficient and time-
consuming and expose to human errors. By using blockchain technology,
most of the principles of good…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Power saving MAC protocols in wireless sensor networks: a survey
In a wireless sensor network, energy is almost always the greatest limitation.
Energy sources are restricted in many of the environments where nodes are
deployed, limiting them to the use of batteries for power. Therefore,
conserving energy is…
Energy sources are restricted in many of the environments where nodes are
deployed, limiting them to the use of batteries for power. Therefore,
conserving energy is…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Performance gap of two users in downlink full-duplex cooperative NOMA
A full-duplex non-orthogonal multiple access (FD-NOMA) systems are
expected to play a significant role in fifth generation (5G) networks,
addressing spectrum efficiency and massive connections. In this regard, the
feasibility of FD communications…
expected to play a significant role in fifth generation (5G) networks,
addressing spectrum efficiency and massive connections. In this regard, the
feasibility of FD communications…