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Πλοήγηση ανά Συγγραφέα "Moustakides, G. V."

Αποτελέσματα 1-14 από 14

    • Adaptive power techniques for blind channel estimation in CDMA systems 

      Doukopoulos, X. G.; Moustakides, G. V. (2005)
      The problem of blind adaptive channel estimation in code-division multiple access (CDMA) systems is considered. Motivated by the iterative power method, which is used in numerical analysis for estimating singular values ...

    • Advances in subspace-based techniques for signal processing and communications 

      Berberidis, K.; Champagne, B.; Moustakides, G. V.; Poor, H. V.; Stoica, P. (2007)

    • Blind adaptive channel estimation in OFDM Systems 

      Doukopoulos, X. G.; Moustakides, G. V. (2006)
      We consider the problem of blind channel estimation in zero padding OFDM systems, and propose blind adaptive algorithms in order to identify the impulse response of the multipath channel. In particular, we develop RLS and ...

    • Blind channel estimation for downlink CDMA systems 

      Doukopoulos, X. G.; Moustakides, G. V. (2003)
      The problem of channel estimation in code-division multiple-access (CDMA) systems is considered. Using only the spreading code of the user of interest, a technique is proposed to identify the impulse response of the multipath ...

    • Decentralized CUSUM change detection 

      Moustakides, G. V. (2006)
      We consider the problem of decentralized change detection using the CUSUM test. More than one sensors acquire independent signals and send their quantized version to a fusion center that uses this information to detect a ...

    • Detecting IEEE 802.11 MAC layer misbehavior in ad hoc networks: Robust strategies against individual and colluding attackers 

      Radosavac, S.; Cárdenas, A. A.; Baras, J. S.; Moustakides, G. V. (2007)
      Selfish behavior at the Medium Access (MAC) Layer can have devastating side effects on the performance of wireless networks, with effects similar to those of Denial of Service (DoS) attacks. In this paper we consider the ...

    • The fast Data Projection Method for stable subspace tracking 

      Doukopoulos, X. G.; Moustakides, G. V. (2005)
      In this article we consider the Data Projection Method (DPM), which constitutes a simple and reliable means for adaptively estimating and tracking subspaces. Specifically we propose a fast and numerically robust implementation ...

    • A generalized cost optimal decision model for record matching 

      Verykios, V. S.; Moustakides, G. V. (2004)
      Record (or entity) matching or linkage is the process of identifying records in one or more data sources, that refer to the same real world entity or object. In record linkage, the ultimate goal of a decision model is to ...

    • Impact of optimal MAC layer attacks on the network layer 

      Radosavac, S.; Baras, J. S.; Moustakides, G. V. (2006)
      Node misbehavior in wireless ad hoc networks leads to sudden unpredictable changes in network topology, resulting in fluctuation of traffic load and capacity for already existing links. In this work we consider node ...

    • A max-min approach for hiding frequent itemsets 

      Moustakides, G. V.; Verykios, V. S. (2006)
      In this paper we are proposing a new algorithmic approach for sanitizing raw data from sensitive knowledge in the context of mining of association rules. The new approach (a) relies on the maxmin criterion which is a method ...

    • A MaxMin approach for hiding frequent itemsets 

      Moustakides, G. V.; Verykios, V. S. (2008)
      In this paper, we are proposing a new algorithmic approach for sanitizing raw data from sensitive knowledge in the context of mining of association rules. The new approach (a) relies on the maxmin criterion which is a ...

    • Optimal stopping: A record-linkage approach 

      Moustakides, G. V.; Verykios, V. S. (2009)
      Record-linkage is the process of identifying whether two separate records refer to the same real-world entity when some elements of the records identifying information (attributes) agree and others disagree. Existing ...

    • Optimality of the CUSUM procedure in continuous time 

      Moustakides, G. V. (2004)
      The optimality of CUSUM under a Lorden-type criterion setting is considered. We demonstrate the optimality of the CUSUM test for lto processes, in a sense similar to Lorden's, but with a criterion that replaces expected ...

    • A robust initialization scheme for the Remez exchange algorithm 

      Psarakis, E. Z.; Moustakides, G. V. (2003)
      A well-known least squares optimum approximation method is proposed as an efficient initialization scheme for the Remez exchange algorithm. More specifically, we theoretically demonstrate that the "don't care" least squares ...