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TCOM
2010
83views more  TCOM 2010»
15 years 1 months ago
Global and Fast Receiver Antenna Selection for MIMO Systems
Abstract--For a multiple-input multiple-output (MIMO) system with more antennas at the receiver than the transmitter, selecting the same number of receiver antennas as the number o...
Bu Hong Wang, Hon Tat Hui, Mook Seng Leong
KDD
2006
ACM
172views Data Mining» more  KDD 2006»
16 years 6 months ago
Attack detection in time series for recommender systems
Recent research has identified significant vulnerabilities in recommender systems. Shilling attacks, in which attackers introduce biased ratings in order to influence future recom...
Sheng Zhang, Amit Chakrabarti, James Ford, Fillia ...
PERVASIVE
2009
Springer
16 years 1 months ago
Securing RFID Systems by Detecting Tag Cloning
Cloning of RFID tags can lead to financial losses in many commercial RFID applications. There are two general strategies to provide security: prevention and detection. The securit...
Mikko Lehtonen, Daniel Ostojic, Alexander Ilic, Fl...
ICC
2009
IEEE
151views Communications» more  ICC 2009»
16 years 1 months ago
Improved Vector Perturbation with Modulo Loss Reduction for Multiuser Downlink Systems
— In this paper, we present an improved precoding technique which reduces a modulo loss in vector perturbation (VP) with low complexity for the downlink of a multiuser multiple-i...
Hyeon-Seung Han, Seokhwan Park, Inkyu Lee
ICC
2009
IEEE
16 years 1 months ago
A Training-Based Iterative Detection/Channel Estimation Scheme for Large Non-Orthogonal STBC MIMO Systems
Abstract—In this paper, we propose a training-based channel estimation scheme for large non-orthogonal space-time block coded (STBC) MIMO systems. The proposed scheme employs a b...
Ahmed Zaki, Saif K. Mohammed, Ananthanarayanan Cho...