Results 41 to 50 of about 148,430 (260)
Peak to average power ratio reduction in NC–OFDM systems [PDF]
, 2015 Non contiguous orthogonal frequency division multiplexing (NC-OFDM) is an efficient and adaptable multicarrier modulation scheme to be used in cognitive radio communications.
Ghafoor, Abdul +2 more
core +1 more source
A Survey on Physical Layer Performance of MIMO-WiMAX [PDF]
E3S Web of ConferencesThe IEEE 802.16 WiMAX standard for BWA (Broadband Wireless Access) was designed to offer end users high transmission data rates across wider regions.Wireless communication requires MIMO systems because they enable data to be sent and received through ...
Naveena A., Divya Udataneni
doaj +1 more source
An Effective Technique for Increasing Capacity and Improving Bandwidth in 5G NB-IoT [PDF]
arXiv, 2022 With hundreds of billions of the IoT connected devices, it is important for researchers to create effective resource management approach to satisfy the quality of service (QoS) requirements of 5th generation (5G) and beyond. Furthermore, wireless spectrum is increasingly scarce as demand for wireless services develops, demanding imaginative approaches ...
arxiv
Advances in Electrical and Computer Engineering, 2017 This article presents and evaluates pipelined architecture designs for an improved high-frequency Fast Fourier Transform (FFT) processor implemented on Field Programmable Gate Arrays (FPGA) for Multiple Input Multiple Output Orthogonal Frequency ...
DALI, M. +4 more
doaj +1 more source
IMPLEMENTING CHANNEL ESTIMATION AND MODULATION TECHNIQUES USING MIMO-PSK [PDF]
Proceedings on Engineering SciencesWireless communication must be designed with the inbuilt characteristics inclusive of high data rates, transmission efficiency, high quality of data transmission and multimedia transmission in communication framework.
K. R. Priya Dharshini , R. Kalaivani
doaj +1 more source
INVESTIGATION OF FADING IN THE COMMUNICATION SYSTEM USING OFDM TECHNOLOGY
Радіоелектронні і комп'ютерні системи, 2018 A new technique exploited for estimating of fading influence in multipath signal propagation environment for communication system using OFDM (Orthogonal frequency-division multiplexing) technology is proposed.
Алексей Андреевич Бреславец +1 more
doaj +1 more source
Power spectrum characterization of systematic coded UW-OFDM systems [PDF]
, 2013 Unique word (UW)-OFDM is a newly proposed multicarrier technique that has shown to outperform cyclic prefix (CP)-OFDM in fading channels. Until now, the spectrum of UW-OFDM is not thoroughly investigated. In this paper, we derive an analytical expression
Khoshbin, Hossein +2 more
core +2 more sources
Transformasi Wavelet dengan Teknik Clipping Filtering untuk Mereduksi PAPR pada OFDM
Jurnal Teknik Elektro, 2020 Orthogonal Frequency Division Multiplexing (OFDM) is chosen as multiplexing techniques and broadly used in today’s radiocommunication environments to overcome spectrum insufficiency. With several superior advantages, however, OFDM is terribly affected by
Ni Made Ary Esta Dewi Wirastuti +1 more
doaj +1 more source
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
doaj +1 more source
Физика волновых процессов и радиотехнические системы, 2022 This article presents the results of modeling a communication system with OFDM using the methods of scrambling the transmitted signals and masking the transmitted information.
Maxim Yu. Zuev
doaj +1 more source