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Perbandingan Kinerja Generalized Frequency Division Multiplexing Menggunakan Modulasi QAM dan Offset QAM

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023
Generalized frequency division multiplexing (GFDM) merupakan sistem multicarrier masa datang yang bersifat nonortogonal. GFDM merupakan teknik transmisi data berbentuk blok yang setiap subcarrier-nya dibentuk dari pulsa berbentuk nonrectangular ...
Ari Endang Jayati, Budiani Destyningtias
doaj   +2 more sources

Improved Two-Dimensional Double Successive Projection Algorithm for Massive MIMO Detection [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2023
In a massive multiple-input multiple-output (MIMO) system, a large number of receiving antennas at the base station can simultaneously serve multiple users.
Sourav Chakraborty   +2 more
doaj   +1 more source

Analisis Perbandingan Kinerja Sistem Radio Over Fiber Modulasi Optik Langsung dan Eksternal

open access: yesJurnal Elkomika, 2023
ABSTRAK Radio Over Fiber (ROF) adalah sistem komunikasi yang digunakan untuk mentransmisikan sinyal radio frequency (RF) melalui serat optik. Kapasitas dan mobilitas jaringan akses dapat ditingkatkan dengan memanfaatkan sistem ROF. Modulasi sinyal optik
FEBRIZAL UJANG, AINUL YAKIN
doaj   +1 more source

ESTIMATION OF POTENTIAL PARAMETERS FOR 5G MOBILE NETWORKS RADIOCHANNELS

open access: yesInformation and Telecommunication Sciences, 2023
Background. Deploying of 5G mobile networks opens up wide opportunities for the development of IoT, high-speed access to Internet services, industrial automation, telemedicine and other modern services.
Ігор Березовський   +1 more
doaj   +1 more source

PERFORMANCE STUDY OF OFDM BASED ON IP-WT [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2008
In this paper, a proposed model based on In-Place Wavelet Transform (IP-WT) was suggested to improve the performance of the Orthogonal Frequency Division Multiplexing (OFDM) under the Additive White Gaussian Noise (AWGN), and flat fading channel.
Salih M. Salih
doaj   +1 more source

Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2015
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method for high data rate wireless communications. In this paper, two schemes are proposed.
Awatif Ali Jafaar
doaj   +1 more source

Analisis Kinerja Sistem Modulasi Downlink LTE dan 5G pada Kanal AWGN Berbasis MATLAB

open access: yesTechne, 2023
Pada penelitian ini dilakukan analisis performansi downlink LTE dan 5G dengan menggunakan MATLAB. Penelitian ini bertujuan untuk menganalisis perbandingan kinerja teknik modulasi QPSK, 16-QAM, dan 64-QAM yang digunakan pada downlink LTE dan teknik ...
Amalia Eka Rakhmania   +5 more
doaj   +1 more source

Low-Complexity Non-uniform Constellation Demapping Algorithm for Broadcasting System [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
This paper presents a novel low-complexity soft demapping algorithm for two-dimensional non-uniform spaced constellations (2D-NUCs) and massive order one-dimensional NUCs (1D-NUCs).
Chen Wang   +3 more
doaj   +1 more source

Volumetric Quantitative Ablation Margins for Assessment of Ablation Completeness in Thermal Ablation of Liver Tumors

open access: yesFrontiers in Oncology, 2021
BackgroundIn thermal ablation of liver tumors, complete coverage of the tumor volume by the ablation volume with a sufficient ablation margin is the most important factor for treatment success. Evaluation of ablation completeness is commonly performed by
Raluca-Maria Sandu   +8 more
doaj   +1 more source

3D Quantitative Ablation Margins for Prediction of Ablation Site Recurrence After Stereotactic Image-Guided Microwave Ablation of Colorectal Liver Metastases: A Multicenter Study

open access: yesFrontiers in Oncology, 2021
BackgroundThree-dimensional (3D) volumetric ablation margin assessment after thermal ablation of liver tumors using software has been described, but its predictive value on treatment efficacy when accounting for other factors known to correlate ablation ...
Simeon J. S. Ruiter   +9 more
doaj   +1 more source

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