Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Jianrong BAO"'
Publikováno v:
IEEE Access, Vol 11, Pp 85268-85283 (2023)
To eliminate inter-symbol interferences (ISI) caused by nonlinear group delay effect in high-speed broadband satellite sensor networks, an efficient parallel adaptive blind equalization of improved block constant modulus algorithm (IBCMA) with decisi
Externí odkaz:
https://doaj.org/article/192fed4729eb4502a607c2abe663e9d4
Publikováno v:
Sensors, Vol 24, Iss 2, p 688 (2024)
The rapid development of wireless communication technology has led to an increasing number of internet of thing (IoT) devices, and the demand for spectrum for these devices and their related applications is also increasing. However, spectrum scarcity
Externí odkaz:
https://doaj.org/article/49f391141a5542b6abfe86a291ecac96
Publikováno v:
Sensors, Vol 23, Iss 24, p 9798 (2023)
To solve error propagation and exorbitant computational complexity of signal detection in wireless multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) systems, a low-complex and efficient signal detection with iterat
Externí odkaz:
https://doaj.org/article/3d2fb8b1ef6645b3b0a97ec057b8d3e5
Publikováno v:
Sensors, Vol 23, Iss 18, p 7801 (2023)
This paper proposes an improved frequency domain turbo equalization (IFDTE) with iterative channel estimation and feedback to achieve both a good performance and low complexity in underwater acoustic communications (UWACs). A selective zero-attractin
Externí odkaz:
https://doaj.org/article/56c0d3dbd1e84e8c9d70fe6117748c61
Publikováno v:
Dianxin kexue, Vol 38, Pp 36-46 (2022)
Intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfer (SWIPT) system is set as research background.Joint design and optimization of energy-efficiency priority based active beamforming at multi-antenna tran
Externí odkaz:
https://doaj.org/article/dc5ed3b72e8345f683877b137e5aa561
Publikováno v:
Dianxin kexue, Vol 37, Pp 46-53 (2021)
Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency, coverage and anti-noise performance of NOMA technology,
Externí odkaz:
https://doaj.org/article/470f56951f0240dfa55bb5008e145fd8
Publikováno v:
Dianxin kexue, Vol 37, Pp 125-132 (2021)
Polar codes have perfect coding and decoding performance as a kind of error correction code, which have become a standard coding scheme for 5G short code control channel. While the length of polar codes is short, its performance is not good enough. A
Externí odkaz:
https://doaj.org/article/5d53d1e14fe849aebfd6639bc2d93654
Publikováno v:
Dianxin kexue, Vol 36, Pp 33-40 (2020)
In view of the poor performance of the existing spectrum sensing algorithm in the low signal-noise ratio (SNR) environment and the limitations of traditional stochastic resonance (SR) detection methods for weak signals in practical applications,a dua
Externí odkaz:
https://doaj.org/article/691906e7b3324f06b69d89ec6c57a6de
Publikováno v:
Dianxin kexue, Vol 36, Pp 61-67 (2020)
To overcome the deficiencies of low detection probability of traditional spectrum sensing,an EROC spectrum sensing algorithm based on the eigenvalue ratio of a random matrix was proposed.Based on the random detection theory,it used double thresholds
Externí odkaz:
https://doaj.org/article/33af7bf108fa45b4b32dc5949f60032b
Publikováno v:
Dianxin kexue, Vol 36, Pp 77-87 (2020)
An improved Polar selective decoding and forwarding (IPSDF) scheme based on cooperative threshold de-cision was proposed.Firstly,a new construction of Polar codes according to the fading channel state information (CSI) was proposed.Then,a relay with
Externí odkaz:
https://doaj.org/article/284850d3d89242619437f772fce3c9f5