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TWC
2008
139views more  TWC 2008»
13 years 9 months ago
Optimal and Suboptimal Power Allocation Schemes for OFDM-based Cognitive Radio Systems
In this paper, we investigate an optimal power loading algorithm for an OFDM-based cognitive radio (CR) system. The downlink transmission capacity of the CR user is thereby maximiz...
Gaurav Bansal, Md. Jahangir Hossain, Vijay K. Bhar...
TWC
2008
158views more  TWC 2008»
13 years 9 months ago
Solving Box-Constrained Integer Least Squares Problems
A box-constrained integer least squares problem (BILS) arises from several wireless communications applications. Solving a BILS problem usually has two stages: reduction (or prepro...
Xiao-Wen Chang, Qing Han
ALIFE
2004
13 years 9 months ago
Using Avida to Test the Effects of Natural Selection on Phylogenetic Reconstruction Methods
Phylogenetic trees group organisms by their ancestral relationships. There are a number of distinct algorithms used to reconstruct these trees from molecular sequence data, but dif...
George I. Hagstrom, Dehua H. Hang, Charles Ofria, ...
TVLSI
2008
112views more  TVLSI 2008»
13 years 9 months ago
System Architecture and Implementation of MIMO Sphere Decoders on FPGA
Multiple-input
Xin-Ming Huang, Cao Liang, Jing Ma
ALGORITHMICA
2004
125views more  ALGORITHMICA 2004»
13 years 9 months ago
Multidimensional Cube Packing
We consider the d-dimensional cube packing problem (d-CPP): given a list L of d-dimensional cubes and (an unlimited quantity of) d-dimensional unit-capacity cubes, called bins, fi...
Yoshiharu Kohayakawa, Flávio Keidi Miyazawa...
ALGORITHMICA
2004
111views more  ALGORITHMICA 2004»
13 years 9 months ago
Automated Generation of Search Tree Algorithms for Hard Graph Modification Problems
We present a framework for an automated generation of exact search tree algorithms for NP-hard problems. The purpose of our approach is two-fold--rapid development and improved up...
Jens Gramm, Jiong Guo, Falk Hüffner, Rolf Nie...
ALGORITHMICA
2004
130views more  ALGORITHMICA 2004»
13 years 9 months ago
The Power of Priority Algorithms for Facility Location and Set Cover
We apply and extend the priority algorithm framework introduced by Borodin, Nielsen, and Rackoff to define "greedy-like" algorithms for the (uncapacitated) facility locat...
Spyros Angelopoulos, Allan Borodin
JSC
2007
119views more  JSC 2007»
13 years 9 months ago
Equisingular calculations for plane curve singularities
We present an algorithm which, given a deformation with section of a reduced plane curve singularity, computes equations for the equisingularity stratum (that is, the µ-constant s...
Antonio Campillo, Gert-Martin Greuel, Christoph Lo...
TSP
2008
116views more  TSP 2008»
13 years 9 months ago
Fast Blind Separation of Long Mixture Recordings Using Multivariate Polynomial Identification
This correspondence presents new approaches for optimizing kurtosis-based separation criteria in the case of long mixture recordings. Our methods are based on a multivariate polyno...
Johan Thomas, Yannick Deville, Shahram Hosseini
AI
2004
Springer
13 years 9 months ago
Efficient learning equilibrium
Efficient Learning Equilibrium (ELE) is a natural solution concept for multi-agent encounters with incomplete information. It requires the learning algorithms themselves to be in ...
Ronen I. Brafman, Moshe Tennenholtz