Results 171 to 180 of about 287 (207)
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Adjacent Channel Interference Suppression to Enhance Spectrum Sharing for Co-located Devices
2021 IEEE International Conference on Communications Workshops (ICC Workshops), 2021The increasing demand for spectrum resources has prompted people to improve spectrum utilization by spectrum sharing technology. However, mutual interference between co-located wireless devices will cause spectrum conflicts and decrease the spectrum utilization.
Xiaolei Huo +5 more
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Hermitian Adjacency Spectrum of Cayley Digraphs over Dihedral Group
Algebra Colloquium, 2020We first study the spectrum of Hermitian adjacency matrix (H-spectrum) of Cayley digraphs X(D2n, S) on dihedral group D2n with |S| = 3. Then we show that all Cayley digraphs X(D2p, S) with |S| = 3 and p odd prime are Cay-DS, namely, for any Cayley digraph X(D2p, T), X(D2p, T) and X(D2p, S) having the same H-spectrum implies that they are isomorphic.
Honghai Li, Teng Yu
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Spectrum of skin diseases in Yemen (Hajjah and adjacent region)
International Journal of Dermatology, 2004AbstractBackground Epidemiological study of skin diseases from Yemen is not available, although some data has been published from nearby Arab countries.Objective To determine the pattern of skin diseases in Yemen and particularly in Hajjah and nearby regions.Methods This is a prospective study and analysis of the consecutive new patients attending ...
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The adjacency spectrum and metric dimension of an induced subgraph of comaximal graph of ℤn
Discrete Mathematics, Algorithms and Applications, 2022Let R be a commutative ring with unity, and let [Formula: see text] denote the comaximal graph of R. The comaximal graph [Formula: see text] has vertex set as R, and any two distinct vertices x, y of [Formula: see text] are adjacent if [Formula: see text].
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Universal adjacency spectrum of the commuting and non-commuting graphs on AC-groups
Asian-European Journal of Mathematics, 2023For a simple undirected graph [Formula: see text] and [Formula: see text], [Formula: see text], the universal adjacency matrix [Formula: see text], where [Formula: see text] is the identity matrix, [Formula: see text] is the all-ones matrix, and [Formula: see text] and [Formula: see text] are the adjacency and degree diagonal matrices of [Formula: see
Bajaj, Saraswati, Panigrahi, Pratima
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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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Adjacency Spectrum of Reduced Power Graphs of Finite Groups
Algebra ColloquiumThe reduced power graph of a group [Formula: see text], denoted by [Formula: see text], is the graph whose vertex set is the set of all elements of [Formula: see text] and two vertices [Formula: see text] and [Formula: see text] are adjacent in [Formula: see text] if and only if [Formula: see text] or [Formula: see text].
R. Rajkumar, T. Anitha
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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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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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PMEPR mitigation using adjacent bands of standards under spectrum mask constraint
2008 14th European Wireless Conference, 2008This paper addresses a method to mitigate the peak to mean power ratio (PMEPR) of orthogonal frequency division multiplexing (OFDM) signals. The idea is to use adjacent bands of the OFDM spectrum to allocate optimized subcarriers so as to decrease the signal PMEPR with the help of SOCP optimization process.
Louët, Yves +2 more
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