Results 271 to 280 of about 2,858,268 (305)
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On the spectrum of hypergraphs
Linear Algebra and its Applications, 2017Here we study the spectral properties of an underlying weighted graph of a non-uniform hypergraph by introducing different connectivity matrices, such as adjacency, Laplacian and normalized Laplacian matrices. We show that different structural properties
Anirban Banerjee
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Interference study in adjacent and alternate channels of IEEE 802.15.4 spectrum
2016 International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET), 2016IEEE 802.15.4 defines three frequency bands − 868 MHz, 915 MHz, 2.4 GHz and each one contains several channels except 868 MHz band that contains only one channel[1]. Communication in adjacent or alternate channel simultaneously may lead to interference to the desired network.
Sanam Khan +5 more
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Impact of Adjacent/Overlapping Communication Waveform Design within a Radar Spectrum Sharing Context
2020 IEEE International Radar Conference (RADAR), 2020We consider the design of spectrum sharing communication waveforms that may partially overlap spectrally with a pulse-Doppler radar yet maintain a low, predictable level of interference with radar operation. This is in contrast to traditional communication waveforms, which can interfere with radar operation despite having a negative interference-to ...
Justin G. Metcalf +2 more
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Target adjacency influence estimation using ground spectrum measurement and Landsat-5 data
Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005This paper addresses the adjacency effect estimation in ground spectrum and Landsat-5 pixels. The adjacency effect influences a pixel DN value by adding surface surrounding scatter signal and path scatter signals at sensor. Based on the theory of radiation transfer we designed a system that measuring the reflectance from the surface target material and
null Ma Jian-wen +2 more
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2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2017
In this work, we consider adjacent channel interference (ACI) cancellation in the dual satellite communication system which supports simultaneous uplink and downlink communications between an airplane and two satellites over adjacent frequency bands. The transmitter of the uplink communication toward one satellite creates strong ACI to the receiver on ...
Minh Tri Nguyen, Long Bao Le
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In this work, we consider adjacent channel interference (ACI) cancellation in the dual satellite communication system which supports simultaneous uplink and downlink communications between an airplane and two satellites over adjacent frequency bands. The transmitter of the uplink communication toward one satellite creates strong ACI to the receiver on ...
Minh Tri Nguyen, Long Bao Le
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Journal of Fluorescence, 2006
The difference in time-resolved fluorescence spectrum between the cortical sarcoma and the adjacent normal tissue was studied in both experimental and theoretical ways. The Clinical data were obtained in vivo using a time-resolved fluorescence spectrometer employing a single fiber-optic probe for excitation and detection.
Yuezhi, Li, Mingzhao, Li, Tao, Xu
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The difference in time-resolved fluorescence spectrum between the cortical sarcoma and the adjacent normal tissue was studied in both experimental and theoretical ways. The Clinical data were obtained in vivo using a time-resolved fluorescence spectrometer employing a single fiber-optic probe for excitation and detection.
Yuezhi, Li, Mingzhao, Li, Tao, Xu
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Alveolar hydatid disease of the liver: Brief review and spectrum of adjacent organ invasion
Australasian Radiology, 2007SummaryThe purpose of this study is to show the spectrum of adjacent organ invasion and to make a brief review of hepatic alveolar hydatid disease (AHD), using CT and MR imaging. We retrospectively reviewed CT and MR images of three patients with various adjacent organ invasions surgically and histologically proven to be AHD.
Demir, M. K., Kilicoglu, G., Akinci, O.
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CHARACTERISTIC POLYNOMIAL OF ADJACENCY OR LAPLACIAN MATRIX FOR WEIGHTED TREELIKE NETWORKS
Fractals, 2019In recent years, weighted networks have been extensively studied in various fields. This paper studies characteristic polynomial of adjacency or Laplacian matrix for weighted treelike networks.
M. Dai +5 more
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The International Conference on Information Network 2012, 2012
This paper considers the problem of dynamic spectrum allocation (DSA) in the adjacent regions controlled by each spectrum broker (SB). In this scenario, the SB has a responsibility to allocate the spectrum to network service providers (NSPs) in region that SB controls.
Yunseok Kang, Sooyeol Im, Hyuckjae Lee
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This paper considers the problem of dynamic spectrum allocation (DSA) in the adjacent regions controlled by each spectrum broker (SB). In this scenario, the SB has a responsibility to allocate the spectrum to network service providers (NSPs) in region that SB controls.
Yunseok Kang, Sooyeol Im, Hyuckjae Lee
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Graphs that have a weighted adjacency matrix with spectrum $\{��_1^{n-2}, ��_1^2\}$
2015In this paper we completely characterize the graphs which have an edge weighted adjacency matrix belonging to the class of $n \times n$ involutions with spectrum equal to $\{ _1^{n-2}, _2^{2} \}$ for some $ _1$ and some $ _2$. The connected graphs turn out to be the cographs constructed as the join of at least two unions of pairs of complete ...
Meagher, Karen, Sciriha, Irene
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