Browse Items (68 total)
- Collection: Vol. 18, No. 4 2020
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TELKOMNIKA Telecommunication, Computing, Electronics and Control
A simplified spatial modulation MISO-OFDM scheme
Index modulation is one of the promising techniques for future
communications systems due to many improvement over the classical
orthogonal frequency division multiplexing systems such as single RF chain, increased throughput for the same…
communications systems due to many improvement over the classical
orthogonal frequency division multiplexing systems such as single RF chain, increased throughput for the same…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Enhancement of student performance prediction using modified K-nearest neighbor
The traditional K-nearest neighbor (KNN) algorithm uses an exhaustive search for a complete training set to predict a single test sample. This procedure can slow down the system to consume more time for huge datasets. The selection of classes for a…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
GWO-based estimation of input-output parameters of thermal power plants
The fuel cost curve of thermal generators was very important in the calculation of economic dispatch and optimal power flow. Temperature and aging could make changes to fuel cost curve so curve estimation need to be done periodically. The accuracy of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Internet-offline solution: detail description and benchmarking
In this paper, for the first time, the detail of the internet-offline solution
for rural/village schools is described, and its benchmarking is reported.
For providing offline knowledge access, four (4) different systems have
examined. An…
for rural/village schools is described, and its benchmarking is reported.
For providing offline knowledge access, four (4) different systems have
examined. An…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Simulation and optimization of a tuneable rectangular microstrip patch antenna based on hybrid metal-graphene and FSS superstrate for fifth-generation applications
In this paper, a tuneable rectangular microstrip patch antenna (MPA) is
simulated and optimized to operate in four frequency bands of the next
generation of wireless communication systems. The proposed design
incorporates a copper radiating patch…
simulated and optimized to operate in four frequency bands of the next
generation of wireless communication systems. The proposed design
incorporates a copper radiating patch…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Early detection of breast cancer using mammography images and software engineering process
The breast cancer has affected a wide region of women as a particular case. Therefore, different researchers have focused on the early detection of this disease to overcome it in efficient way. In this paper, an early breast cancer detection system…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A compact multi-band notched characteristics UWB microstrip patch antenna with a single sheet of graphene
A rectangular tuneable ultra-wideband (UWB) microstrip patch (MP) antenna based on a single sheet of graphene (SSG) is designed in this study. The antenna band can be tuned by applying a DC voltage bias perpendicular to the SSG at various values via…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A principal component analysis-based feature dimensionality reduction scheme for content-based image retrieval system
In content-based image retrieval (CBIR) system, one approach of image
representation is to employ combination of low-level visual features cascaded together into a flat vector. While this presents more descriptive information, it however poses…
representation is to employ combination of low-level visual features cascaded together into a flat vector. While this presents more descriptive information, it however poses…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A progressive domain expansion method for solving optimal control problem
Electricity generation at the hydropower stations in Nigeria has been below the expected value. While the hydro stations have a capacity to generate up to 2,380 MW, the daily average energy generated in 2017 was estimated at around 846 MW. A factor…