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SGAI
2007
Springer
16 years 24 days ago
Escaping Local Optima: Constraint Weights vs. Value Penalties
Constraint Satisfaction Problems can be solved using either iterative improvement or constructive search approaches. Iterative improvement techniques converge quicker than the cons...
Muhammed Basharu, Inés Arana, Hatem Ahriz
SSS
2007
Springer
16 years 24 days ago
Stabilization of Loop-Free Redundant Routing
Consider a network of processes that exchange messages via FIFO communication channels. Each process chooses a subset of its neighboring processes to be its successors. Furthermore...
Jorge Arturo Cobb
STACS
2007
Springer
16 years 24 days ago
On Fixed Point Equations over Commutative Semirings
Fixed point equations x = f(x) over ω-continuous semirings can be seen as the mathematical foundation of interprocedural program analysis. The sequence 0, f(0), f2 (0), . . . conv...
Javier Esparza, Stefan Kiefer, Michael Luttenberge...
GLOBECOM
2006
IEEE
16 years 22 days ago
Two Novel Iterative Joint Frequency-Offset and Channel Estimation Methods for OFDMA Uplink
—We address joint estimation of frequency offsets and channel responses in OFDMA uplink. A cyclically equal-spaced, equal-energy interleaved pilot preamble is proposed by which t...
Xiaoyu Fu, Hlaing Minn, Cyrus D. Cantrell
ICMCS
2006
IEEE
121views Multimedia» more  ICMCS 2006»
16 years 21 days ago
Acoustic Echo Cancelation for High Noise Environments
Acoustic echo cancellation (AEC) is highly imperative for enhanced communication in noisy environments such as a car or a conference room. In this work, we present a dualstructure...
Amit Chhetri, Jack W. Stokes, Dinei A. F. Flor&eci...