Results 51 to 60 of about 60,608 (216)

Maximal Minimum Hamming Distance Codes for Embedding SI in a Data based BSLM Scheme for PAPR Reduction in OFDM

open access: yesInternational Journal of Technology, 2021
The bi-orthogonal codes for embedding Side-Information (SI) in data-based blind SLM (BSLM) proposed in Joo et al. (2012) produce better bit error rate (BER) and SI error rate (SIER) performance compared to binary codes.
Adnan Haider Yusef Sa'd   +2 more
doaj   +1 more source

Enhancing System Capacity Through Joint Space‐Ground Multi‐Beam Coordination for LEO Satellite Systems

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
ABSTRACT Due to the long transmission distance of the constellation network represented by the low‐orbit satellite system, the satellite‐to‐ground link is subject to large path loss and limited communication performance. This paper uses multi‐satellite and multi‐beam joint transmission technology to form a virtual multiplex network with ground multi ...
Yuyang Liu, Tong Shi, Hua Wang
wiley   +1 more source

OFDM Signal Research with Varied Subcarriers Number

open access: yesTransport 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

Green communication systems via a wavefront multiplexing technique

open access: yesSystems Engineering, Volume 28, Issue 1, Page 5-14, January 2025.
Abstract A green communication scheme using an orthogonal wavefront (WF) multiplexing (Muxing) scheme spatially combined with orthogonal frequency‐division multiplexing (OFDM) techniques is proposed. It forms a spatial WF OFDM transceiver. The WF Muxing technique serves as the preprocessing and postprocessing method of the WF OFDM transceiver.
Hen‐Geul Yeh, Joe Lee
wiley   +1 more source

Spectrally encapsulated OFDM: Vectorized structure with minimal complexity

open access: yesETRI Journal, 2021
To efficiently use frequency resources, the next 6th generation mobile communication technology must solve the problem of out‐of‐band emission (OoBE) of cyclic prefix (CP) orthogonal frequency division multiplexing (OFDM), which is not solved in 5th ...
Myungsup Kim   +3 more
doaj   +1 more source

Symbol detection aided channel prediction in fast‐varying massive MIMO systems: Framework and performance analysis

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
The transmission structure is designed to obtain the accurate channel state information in time‐varying environment. On this basis, communication performance of multiple‐input multiple‐output system is improved by symbol detection aided channel prediction.
Wei Gao   +3 more
wiley   +1 more source

SINR analysis of OFDM and f-OFDM for machine type communications [PDF]

open access: yes2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2016
Machine type communications (MTC) have been growing significantly in recent years and this tendency is foreseen to be kept in the near future playing an increasingly important role in the industry. The signals used for MTC will coexist with the current and next generation cellular systems.
Kun Chen Hu, Ana Garcia Armada
openaire   +3 more sources

Simulasi Pengaruh Phase Noise pada Kinerja Sistem Komunikasi Nirkabel Orthogonal Frequency Division Multiplexing (OFDM)

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2016
Orthogonal Frequency Division Multiplexing (OFDM) merupakan salah satu alternatif terbaik dalam mengurangi pengaruh lintas jamak pada komunikasi bergerak.
Ali Mustofa, Wahju Adi Priyono
doaj   +1 more source

Analysis and Comparison of PAPR Reduction Techniques in OFDM Systems [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2015
The destructive impact of fading environments and also bandwidth limitations are two main challenges which communication is dealing with them. These challenges can affect on the growth of wireless communication and even cause reliable communications and ...
M.B. Noori Shirazi   +3 more
doaj   +1 more source

Fine‐grained multi‐path channel estimation and matched reception by single metasurface antenna

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
This paper investigates methods to enhance antenna's channel information extraction capabilities in wireless communications, particularly in challenging multi‐path environments. Focusing on the issues of channel information loss due to multi‐path superposition at the receiver and multi‐path fading during wireless channel propagation, this paper ...
Yinuo Hao, Liang Jin, Shuaifang Xiao
wiley   +1 more source

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