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ICC
2007
IEEE
164views Communications» more  ICC 2007»
16 years 23 days ago
Characterization of an Indoor MIMO channel in Frequency Domain using the 3D-SAGE Algorithm
— In this paper, the frequency domain (FD) SAGE (Space-Alternating Generalized Expectation-maximization) algorithm has been extended to the MIMO case in order to determine the an...
Michail Matthaiou, Nima Razavi-Ghods
AIRWEB
2007
Springer
16 years 19 days ago
Computing Trusted Authority Scores in Peer-to-Peer Web Search Networks
Peer-to-peer (P2P) networks have received great attention for sharing and searching information in large user communities. The open and anonymous nature of P2P networks is one of ...
Josiane Xavier Parreira, Debora Donato, Carlos Cas...
ISCI
2007
141views more  ISCI 2007»
15 years 6 months ago
A performance comparison of distance-based query algorithms using R-trees in spatial databases
Efficient processing of distance-based queries (DBQs) is of great importance in spatial databases due to the wide area of applications that may address such queries. The most repr...
Antonio Corral, Jesús Manuel Almendros-Jim&...
CIKM
2009
Springer
16 years 1 months ago
Supporting context-based query in personal DataSpace
Many users need to refer to content in existing files (pictures, tables, emails, web pages and etc.) when they write documents(programs, presentations, proposals and etc.), and o...
Yukun Li, Xiaofeng Meng
DIS
2007
Springer
15 years 10 months ago
Time and Space Efficient Discovery of Maximal Geometric Graphs
A geometric graph is a labeled graph whose vertices are points in the 2D plane with an isomorphism invariant under geometric transformations such as translation, rotation, and scal...
Hiroki Arimura, Takeaki Uno, Shinichi Shimozono