Results 61 to 70 of about 3,697 (183)

Effects of Doppler-Division Multiplexing on OFDM Joint Sensing and Communication Systems

IEEE Open Journal of Signal Processing
A promising waveform candidate for future joint sensing and communication systems is orthogonal frequency-division multiplexing (OFDM). For such systems, supporting multiple transmit antennas requires multiplexing methods for the generation of orthogonal
Oliver Lang, Christian Hofbauer, Reinhard Feger, Mario Huemer   +3 more
doaj   +1 more source

PAPR reduction using polynomial based compressing with Rapp model in GFDM

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Generalized Frequency Division Multiplexing (GFDM) has been considered as an attractive candidate to replace Orthogonal Frequency Division Multiplexing (OFDM) for the fifth generation (5 G) mobile networks. GFDM system has better spectral characteristics
P.V. Naganjaneyulu, U. Sreenivasulu, M. Nageswara Rao, G. Sujatha   +3 more
doaj   +1 more source

OFDM Signal Research with Varied Subcarriers Number

Transport and Telecommunication, 2016
The orthogonal frequency division multiplexing (OFDM) aggregate signal energy characteristics are studied based on the OFDM signal simulation model. The information reliability of OFDM signal is explored for different sets of OFDM subcarrier numbers and ...
Uryvsky Leonid, Osypchuk Serhii
doaj   +1 more source

Orthogonal Frequency Division Diversity and Multiplexing for 6G OWC: Principle and Underwater Use Case

Photonics
In this paper, we, for the first time, propose and demonstrate an orthogonal frequency division diversity and multiplexing (OFDDM) scheme for the sixth-generation (6G) underwater optical wireless communication (UOWC) systems.
Jiamin Chen, Chen Chen, Zhihong Zeng, Min Liu, Jia Ye, Cuiwei He, Shenjie Huang, H. Y. Fu, Harald Haas   +8 more
doaj   +1 more source

Review of the channel coding, O-OFDM, and synchronization techniques of O-OFDM used in visible light communication systems

Cogent Engineering
Optical Wireless Communication (OWC) systems offer numerous benefits, such as increased bandwidth, access to an unregulated spectrum, immunity to electromagnetic interference, and the ability to reuse the spectrum effectively.
Praveen Yadav, Sangeetha R. G.
doaj   +1 more source

The Performance of Turbo Coded Orthogonal Frequency Division Multiplexing System over Flat Rayleigh Fading Channel

Journal of Engineering and Sustainable Development, 2009
This work investigates the effectiveness of Turbo Codes and Orthogonal Frequency Division Multiplexing (OFDM) system, for communication over the flat Rayleigh fading additive white Gaussian noise (AWGN) channel. The Fast Fourier Transform (FFT) is used
Khamis A. Zidan, Raghad Z. Al-Macdici, Fadel S. Hassen, Noor Al-Mahdaoy   +3 more
doaj  

Securing Communication Channels: An Advanced Steganography Approach With Orthogonal Frequency Division Multiplexing (OFDM)

Journal of Electrical and Computer Engineering
Orthogonal frequency division multiplexing (OFDM) is a widely used modern communications technology due to its resistance to selective frequency fading and efficient use of spectrum. However, the security of OFDM signals remains a source of serious concern, especially in the face of network encryption that aims to disrupt communications or extract ...
Ammar Mohammedali Fadhil, Ali Y. Jaber
openaire   +2 more sources

Comparative Analysis between OFDMA and SC-FDMA: Model, Features and Applications

International Journal of Electrical Engineering and Applied Sciences, 2019
This paper represents Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SCFDMA) techniques along with the Orthogonal Frequency Division Multiplexing (OFDM).
Abdullah Al-Mamun Bulbul, Farjana Imam, Mehenaz Mitu, Sonia Akter, Ety khanam, Shikha Rani Das   +5 more
doaj  

Multilayer Hybrid Optical OFDM Design Scheme for Visible Light Communication

Guangtongxin yanjiu
ObjectiveThe paper aims to address the limitations of hybrid Optical-Orthogonal Frequency Division Multiplexing (O-OFDM) schemes, such as Layered Asymmetric Clipped Optical Orthogonal Frequency Division Multiplexing (LACO-OFDM), within Visible Light ...
LI Zongyan, GAO Han, XU Yue, HOU Wenbin, LI Shiyin   +4 more
doaj  

Comparative Analysis of Polar Coded F-OFDM and UFMC 5G NR Waveforms [PDF]

Iranian Journal of Electrical and Electronic Engineering
Fifth Generation-New Radio (5G-NR) is an advanced air interface defined to fulfil diverse services with ubiquitous coverage in next generation Wireless networks.
Smita Jolania, Ravi Sindal
doaj