Zobrazeno 1 - 10
of 2 065
pro vyhledávání: '"(OFDM) systems"'
Autor:
D. Ramadevi, P. Trinatha Rao
Publikováno v:
Measurement: Sensors, Vol 33, Iss , Pp 101187- (2024)
In order to advance 5G wireless communication technology, this paper presents a novel method for lowering the Peak-to-Average Power Ratio (PAPR) in Multiple-Input Multiple-Output Orthogonal Frequency-Division Multiplexing (MIMO-OFDM) systems. It is c
Externí odkaz:
https://doaj.org/article/cbe88a284ccd47a59fb950ad91db0b50
Publikováno v:
Electronic Research Archive, Vol 31, Iss 9, Pp 5780-5792 (2023)
Least squares (LS) is a commonly used pilot-based channel estimation algorithm in orthogonal frequency division multiplexing (OFDM) systems. This algorithm is simple and easy to implement because of its low computation complexity. However, it has poo
Externí odkaz:
https://doaj.org/article/6722d80b72ae4d42a33f0248c9971675
Autor:
Ezmin Abdullah, Kaharudin Dimyati, Wan Norsyafizan W. Muhamad, Nurain Izzati Shuhaimi, Roslina Mohamad, Nabil M. Hidayat
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 50, Iss , Pp 101608- (2024)
Adoption of Orthogonal Frequency Division Multiplexing (OFDM) in 5th Generation New Radio (5G NR) as a multicarrier modulation technique allows high data rate transmission with lower complexity. However, problem such as peak to average power ratio (P
Externí odkaz:
https://doaj.org/article/d6de41d5f0dd43a6bb749d98bfa44813
Publikováno v:
International Journal of Electronics and Telecommunications, Vol vol. 67, Iss No 3, Pp 451-457 (2021)
The high-speed of train (HST) in combination with the high carrier frequency of HST systems leads to the severe inter carrier interference (ICI) in the HST orthogonal frequency division multiplexing (HST-OFDM) systems. To avoid the complexity in OFDM
Externí odkaz:
https://doaj.org/article/38dca40f11c649d09432a8d3373fa331
Autor:
J. Alberto Del Puerto-Flores, Francisco R. Castillo-Soria, J. Vázquez-Castillo, R. R. Palacio Cinco
Publikováno v:
Sensors, Vol 23, Iss 15, p 6728 (2023)
This paper examines the performance of orthogonal frequency division multiplexing (OFDM) systems for vehicle-to-vehicle (V2V) communication channels. More specifically, a doubly selective channel under high intercarrier interference (ICI) is consider
Externí odkaz:
https://doaj.org/article/78e2ce581310488fb167bca3d6770933
Publikováno v:
Radioengineering, Vol 30, Iss 2, Pp 271-277 (2021)
In this paper we propose a~transmission scheme for Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) systems with Multiple Input - Multiple Output (MIMO) processing. Our proposal consists of the concatenation of two techniques, No
Externí odkaz:
https://doaj.org/article/baf1a1e583b64884817a58d6ba3f5cb3
Publikováno v:
Mathematics, Vol 11, Iss 9, p 1989 (2023)
In order to improve the signal detection capability of orthogonal frequency-division multiplexing systems, a signal detection method based on an improved LSTM network for OFDM systems is proposed. The LSTM network is optimized by the Chameleon Swarm
Externí odkaz:
https://doaj.org/article/85830f0ff8fd47bd95979c6760926ffb
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2021, Iss 1, Pp 1-20 (2021)
Abstract Nonlinear behavior and power efficiency of the Power Amplifier (PA) contradictorily depend on the input signal amplitude distribution. The transmitted signal in multi-carrier modulation exhibits high Peak-to-Average Power Ratio (PAPR) and la
Externí odkaz:
https://doaj.org/article/8c8c14c7504f4421929af550401297f0
Akademický článek
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Publikováno v:
IEEE Access, Vol 7, Pp 15183-15195 (2019)
The millimeter wave (mmWave) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems communicate at the extremely high-frequency band. In the extremely high band, the channel state information (CSI) from channe
Externí odkaz:
https://doaj.org/article/05f5deed5d254111a698f4f2ab30ae2a