Results 11 to 20 of about 3,362 (185)
Design, comparative study and analysis of CDMA for different modulation techni
Egyptian Informatics Journal, 2015 In this work, we have design a MIMO–CDMA using 4 ∗ 8 antennas with the combination of MMSE (Minimum Mean square Error Equalizer) for BPSK (Binary Phase shift Keying), QPSK (Quadrature Phase Shift Keying), 16-QAM, 64-QAM and 256-QAM (Quadrature Amplitude ...
Arun Kumar, Manisha Gupta
doaj +3 more sources
A Novel QAM Technique for High Order QAM Signaling
Radioengineering, 2011 The paper proposes a novel spread quadrature amplitude modulation (S-QAM) technique with high SNR improvement for high-order QAM channels. Simulated and experimental bit error rate (BER) performance analyses of the proposed technique in blind and non ...
A. Ozen
doaj +2 more sources
Improved Two-Dimensional Double Successive Projection Algorithm for Massive MIMO Detection [PDF]
International 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
New Constructions of Perfect 8-QAM+/8-QAM Sequences
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2014 Chengqian Xu, Xiaoyu Chen
exaly +2 more sources
Jurnal 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
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Analisis Perbandingan Kinerja Sistem Radio Over Fiber Modulasi Optik Langsung dan Eksternal
Jurnal 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
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PERFORMANCE STUDY OF OFDM BASED ON IP-WT [PDF]
مجلة 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
ESTIMATION OF POTENTIAL PARAMETERS FOR 5G MOBILE NETWORKS RADIOCHANNELS
Information 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
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Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]
Engineering 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
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Analisis Kinerja Sistem Modulasi Downlink LTE dan 5G pada Kanal AWGN Berbasis MATLAB
Techne, 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
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