Results 21 to 30 of about 63,188 (310)

IP-Level Satellite Link Emulation with KauNet [PDF]

, 2009
Distributed applications and transport protocols communicating over a satellite link may react very strongly to conditions specific to that kind of link.
Garcia, Johan,, Pérennou, Tanguy, Garcia, Johan, Amine Bouabdallah, Anna Brunstrom, Brunström, Anna,, Hurtig, Per, Brunstrom, Anna, Per Hurtig, Tanguy Perennou, Johan Garcia, Bouabdallah, Amine, Hurtig, Per,   +12 more
core   +1 more source

Improving Information Dissemination in Sparse Vehicular Networks by Adding Satellite Communication [PDF]

, 2012
Information dissemination in pure Vehicular Ad Hoc NETworks (VANETs) such as ITS-G5 becomes problematic when the network is sparse. In situations where the number of vehicles that can act as a communication node is insufficiently low, e.g. in rural areas
Strang, Thomas, Kloiber, Bernhard, Heijenk, Geert, Geert Heijenk, Spijker, Hanno, Thomas Strang, Hanno Spijker, Bernhard Kloiber   +7 more
core   +1 more source

Gap Analysis in Satellite Communication Services [PDF]

فصلنامه علوم و فناوری فضایی, 2023
The national information network is being implemented with the aim of providing the services needed by the people through internal infrastructure and independent of international internet platforms.
Leila Mohammadi, Parvin Sojoodi, Mohammad Bod, saeed sheikhzadeh   +3 more
doaj   +1 more source

Reweighted Nuclear Norm and Total Variation Regularization With Sparse Dictionary Construction for Hyperspectral Anomaly Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Hyperspectral anomaly detection is an important technique in the field of remote sensing image processing. Over the last few years, low rank and sparse matrix decomposition (LRSMD) has played an increasingly significant role in hyperspectral anomaly ...
Xiaoyi Wang, Liguo Wang, Jiawen Wang, Kaipeng Sun, Qunming Wang   +4 more
doaj   +1 more source

DVB-RCS return link radio resource management for broadband satellite systems using fade mitigation techniques at ka band [PDF]

, 2008
Current Broadband Satellite systems supporting DVB-RCS at Ku band have static physical layer in order not to complicate their implementation. However at Ka band frequencies and above an adaptive physical layer wherein the physical layer parameters are ...
Laurent Castanet, Bousquet, Michel, Jose Radzik, Michel Bousquet, Aroumont, Anbazhagan, Radzik, José, Anbazhagan Aroumont, Castanet, Laurent   +7 more
core   +1 more source

A Novel Weighted KNN Algorithm Based on RSS Similarity and Position Distance for Wi-Fi Fingerprint Positioning

IEEE Access, 2020
In Wi-Fi fingerprint positioning, what we should most care about is the distance relationship between the user and the reference points (RP). However, most of the existing weighted k-nearest neighbor (WKNN) algorithms use the Euclidean distance of ...
Boyuan Wang, Xingli Gan, Xuelin Liu, Baoguo Yu, Ruicai Jia, Lu Huang, Haonan Jia   +6 more
doaj   +1 more source

Blind recognition of BCH codes in faster‐than‐Nyquist signalling system

Electronics Letters, 2016
Proposed is a blind recognition method for Bose–Chaudhuri–Hocquenghem (BCH) codes in the faster‐than‐Nyquist (FTN) signalling system which is based on the Galois field Fourier transform of the code polynomial.
Gang Wu, Bangning Zhang, Daoxing Guo, Xiaohu Liang   +3 more
doaj   +1 more source

Analysis of Quasi-Zenith Satellite System Signal Acquisition and Multiplexing Characteristics in China Area

Sensors, 2020
On the basis of realizing regional navigation, the Quasi-Zenith Satellite System (QZSS) has advanced navigation function, which leads to the broadcasting of more signals in a single frequency of QZSS signals. Current signal transmission technology cannot
Hongjun Ye, Xiaojun Jing, Liang Liu, Maolei Wang, Shuo Hao, Xingkang Lang, Baoguo Yu   +6 more
doaj   +1 more source

Reliable multicast transport by satellite: a hybrid satellite/terrestrial solution with erasure codes [PDF]

, 2004
Geostationary satellites are an efficient way to provide a large scale multipoint communication service. In the context of reliable multicast communications, a new hybrid satellite/terrestrial approach is proposed.
L. Dairaine, J. Lacan, Fraboul, Christian, Dairaine, Laurent, Lacan, Jérôme, Florestan de Belleville, Laurent Dairaine, F. De Belleville, Christian Fraboul, De Belleville, Florestan, C. Fraboul, Jérôme Lacan   +11 more
core   +1 more source

A Modified Regular Perturbation Model for the Single-Span Fiber Transmission Using Learnable Methods

Photonics
In fiber optic communication systems, the dispersion and nonlinear interaction of optical signals are critical to modeling fiber optic communication, and the regular perturbation (RP) model is a simplified modeling method composed of parallel branches ...
Shuhong He, Zhongya Li, Sizhe Xing, An Yan, Yingjun Zhou, Jianyang Shi, Chao Shen, Ziwei Li, Zhixue He, Wei Chen, Nan Chi, Junwen Zhang   +11 more
doaj   +1 more source