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Publikováno v:
IEEE Access, Vol 9, Pp 34708-34721 (2021)
Land mobile satellite communication and physical layer security are considered as the promising paradigms in beyond 5G networks. In this paper, we establish the multi-relay hybrid satellite-terrestrial systems (HSTSs) with artificial noise (AN) to in
Autor:
Sharma, Abhishek, Sharma, Abhinav, Dasgotra Ankit, Jately, Vibhu, Ram, Mangey, Rajput, Shailendra, Averbukh, Moshe, Azzopardi, Brian
Publikováno v:
IEEE Access, Vol 9, Pp 125590-125602 (2021)
Parameter estimation of photovoltaic modules is an essential step to observe, analyze, and optimize the performance of solar power systems. An efficient optimization approach is needed to obtain the finest value of unknown parameters. Herewith, this
Publikováno v:
IEEE Access, Vol 9, Pp 44534-44557 (2021)
Singular spectrum decomposition (SSD) is relatively affected by noise. The singular spectrum component (SSC) obtained in a strong noise environment not only contains a lot of noise, but also has over-decomposition phenomenon. One reason is that the s
Autor:
Mohammad Gholami, Farzaneh Abedi
Publikováno v:
IEEE Access, Vol 9, Pp 59725-59740 (2021)
Multitype quasi-cyclic (QC) low-density parity-check (LDPC) codes are a class of protograph LDPC codes lifted cyclically from protographs with multiple edges, represented by two weight and slope matrices. For a given weight-matrix, an approach is pro
Publikováno v:
IEEE Access, Vol 9, Pp 21004-21015 (2021)
In this study, a novel interval analysis (IA) approach for linear arrays with element pattern tolerance is proposed. This study differentiates itself from the classic interval analysis (CIA) method because it focuses on the effects of the array eleme
Publikováno v:
IEEE Access, Vol 9, Pp 85529-85542 (2021)
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This paper investigates the performance of a dual-hop mixed free-space optical (FSO)/radio frequency (RF) system. To this end, the FSO link is subject to the Gamma-Gamma distribution effects that account for pointing error impairments and under both
Publikováno v:
IEEE Access, Vol 9, Pp 14971-14982 (2021)
Aiming at the problem that the vibration energy of shaft crack early weak fault is small and the feature extraction was difficult, the fault diagnosis method of cuckoo search, maximum correlation kurtosis deconvolution and variational mode decomposit
Publikováno v:
IEEE Access, Vol 9, Pp 49901-49911 (2021)
It is widely known that the total variation regularization model preserves the edges well in the restored images but has some staircase effects. We consider using non-convex high-order total variation and overlapping group sparsity as a hybrid regula
Autor:
Jiexing Liu, Chenggui Zhao
Publikováno v:
IEEE Access, Vol 9, Pp 46000-46010 (2021)
Clustering has been troubled by varying shapes of sample distributions, such as line and spiral shapes. Spectral clustering and density peak clustering are two feasible techniques to address this problem, and have attracted much attention from academ
Publikováno v:
IEEE Access, Vol 9, Pp 33994-34006 (2021)
Ensuring site diversity is a fade mitigation technique used to overcome severe rain-induced attenuation encountered in high-frequency signal communications, especially over tropical regions. However, due to the high cost of deploying diverse equipmen