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ICC
2007
IEEE
14 years 3 months ago
CS-CDMA/CP with M-ZCZ Codes Over a Multipath Fading Channel with Excess Spreads
Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) enables multiuser interference-free (MUI-free) transmission over multipath channels with the use of zero correlation zo...
Nalin S. Weerasinghe, Takeshi Hashimoto
ADBIS
2004
Springer
94views Database» more  ADBIS 2004»
14 years 2 months ago
Formalization and Detection of Events over a Sliding Window in Active Databases Using Interval-Based Semantics
Trend analysis and forecasting applications (e.g., securities trading, stock market, and after-the-fact diagnosis) need event detection along a moving time window. Event-driven app...
Raman Adaikkalavan, Sharma Chakravarthy
AUTOMATICA
2006
84views more  AUTOMATICA 2006»
13 years 11 months ago
Optimal control of LTI systems over unreliable communication links
In this paper, optimal control of linear time-invariant (LTI) systems over unreliable communication links is studied. The motivation of the problem comes from growing applications...
Orhan C. Imer, Serdar Yüksel, Tamer Basar
SIAMDM
2008
105views more  SIAMDM 2008»
13 years 11 months ago
Average Spectra and Minimum Distances of Low-Density Parity-Check Codes over Abelian Groups
Ensembles of regular low-density parity-check codes over any finite Abelian group G are studied. The nonzero entries of the parity matrix are randomly chosen, independently and uni...
Giacomo Como, Fabio Fagnani
MOC
1998
98views more  MOC 1998»
13 years 10 months ago
Distribution of irreducible polynomials of small degrees over finite fields
D. Wan very recently proved an asymptotic version of a conjecture of Hansen and Mullen concerning the distribution of irreducible polynomials over finite fields. In this note we ...
Kie H. Ham, Gary L. Mullen