Zobrazeno 1 - 10
of 8 812
pro vyhledávání: '"orthogonal frequency-division multiplexing (ofdm)."'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract In this paper, we investigate the decoding performance and corresponding decoding strategies for polar-coded orthogonal frequency division multiplexing (OFDM) system operating under multipath fading channels. Multipath fading channels lead t
Externí odkaz:
https://doaj.org/article/b7ce4beaee27458b9d5fa9f0a6565ae7
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 5, Pp 1280-1288 (2024)
In this paper, in order to reduce the energy leakage caused by the discretized representation in sparse channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems, we systematically have analyzed the optimal locations of atoms w
Externí odkaz:
https://doaj.org/article/0030810940874184b52158cfc8972906
Autor:
Arslan Khalid, Prapun Suksompong
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 4, Pp 1048-1056 (2024)
Space-Time Block Coded (STBC) Orthogonal Frequency Division Multiplexing (OFDM) satisfies higher data-rate requirements while maintaining signal quality in a multipath fading channel. However, conventional STBCs, including Orthogonal STBCs (OSTBCs),
Externí odkaz:
https://doaj.org/article/a111b8072df2410d98e9a609a165e364
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-20 (2024)
Abstract Due to the spectrum and complexity efficiency, the integrated radar and communications (RadCom) systems have been widely favored, in which orthogonal frequency division multiplexing (OFDM) is the most popular signal to conduct the two functi
Externí odkaz:
https://doaj.org/article/741c356cc84b4a22931b136d2940ff4e
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 160-173 (2024)
Orthogonal Frequency Division Multiplexing (OFDM) waveform design is one of the key physical layer technologies for achieving joint radar-communication. OFDM waveforms usually have issues with high Peak to Average Power Ratio (PAPR) and high waveform
Externí odkaz:
https://doaj.org/article/5429c92a51544daea6ee704742c9fe31
Autor:
Md Abdul Aziz, Md Habibur Rahman, Rana Tabassum, Mohammad Abrar Shakil Sejan, Myung-Sun Baek, Hyoung-Kyu Song
Publikováno v:
Mathematics, Vol 12, Iss 22, p 3583 (2024)
Index modulation (IM) is considered a promising approach for fifth-generation wireless systems due to its spectral efficiency and reduced complexity compared to conventional modulation techniques. However, IM faces difficulties in environments with u
Externí odkaz:
https://doaj.org/article/9561b02965034a2ea6cb9f83effea398
Publikováno v:
Sensors, Vol 24, Iss 22, p 7200 (2024)
In this paper, we proposed an embedded side information (SI) transmission scheme based on polar code construction for PAPR reduction using the PTS scheme in the underwater Acoustic (UWA) Orthogonal Frequency Division Multiplexing (OFDM) communication
Externí odkaz:
https://doaj.org/article/bdf09f884090426e9ff1be44e00b1719
Autor:
M. Susandhika, A. Shirly Edward
Publikováno v:
IEEE Access, Vol 12, Pp 149351-149366 (2024)
In the era of wireless communication, the MIMO technology contributes the communication among users with high data rate and spectral efficiency. The interference of data transmission along the multipath channel is tackled by the OFDM of the MIMO syst
Externí odkaz:
https://doaj.org/article/9a3e9f44b46e4cd2989bccdf211d87d4
Publikováno v:
IEEE Open Journal of Signal Processing, Vol 5, Pp 1052-1060 (2024)
The use of an accurate cyclic prefix length is crucial in orthogonal frequency division multiplexing (OFDM) to avoid intercarrier and intersymbol interference. Although there have been many works that analyse the interference of windowed OFDM, this s
Externí odkaz:
https://doaj.org/article/39142c58c32348ef840f1b0dcfcc7e72
Autor:
Yuki Kuraya, Hideki Ochiai
Publikováno v:
IEEE Open Journal of Vehicular Technology, Vol 5, Pp 1336-1347 (2024)
We propose a new physical layer security scheme for a wiretap channel in polar-coded OFDM-based wireless communication systems. Our approach is based on the adaptive bit channel selection, where the input bit channels of polar code are selected accor
Externí odkaz:
https://doaj.org/article/6580c992562440929e1684bc9225fb52