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JCSS
2007
88views more  JCSS 2007»
13 years 4 months ago
Counting lattice vectors
We consider the problem of counting the number of lattice vectors of a given length and prove several results regarding its computational complexity. We show that the problem is â™...
Denis Xavier Charles
TCOM
2008
127views more  TCOM 2008»
13 years 4 months ago
Low complexity affine MMSE detector for iterative detection-decoding MIMO OFDM systems
Iterative turbo processing between detection and decoding shows near-capacity performance on a multiple-antenna system. Combining iterative processing with optimum frontend detecti...
Daniel N. Liu, Michael P. Fitz
PR
2008
90views more  PR 2008»
13 years 4 months ago
Fast computation of geometric moments using a symmetric kernel
This paper presents a novel set of geometric moments with symmetric kernel (SGM) obtained using an appropriate transformation of image coordinates. By using this image transformat...
Chong-Yaw Wee, Paramesran Raveendran, R. Mukundan
DISOPT
2007
93views more  DISOPT 2007»
13 years 4 months ago
A polynomial time equivalence between DNA sequencing and the exact perfect matching problem
We investigate the computational complexity of a combinatorial problem that arises in DNA sequencing by hybridization: The input consists of an integer together with a set S of wo...
Jacek Blazewicz, Piotr Formanowicz, Marta Kasprzak...
JSAC
2008
94views more  JSAC 2008»
13 years 4 months ago
Soft-output sphere decoding: algorithms and VLSI implementation
Multiple-input multiple-output (MIMO) detection algorithms providing soft information for a subsequent channel decoder pose significant implementation challenges due to their high ...
Christoph Studer, Andreas Burg, Helmut Bölcsk...
DAM
2007
77views more  DAM 2007»
13 years 4 months ago
Decompositions of graphs of functions and fast iterations of lookup tables
We show that every function f implemented as a lookup table can be implemented such that the computational complexity of evaluating f m(x) is small, independently of m and x. The ...
Boaz Tsaban
CORR
2007
Springer
116views Education» more  CORR 2007»
13 years 4 months ago
Complexity of some Path Problems in DAGs and Linear Orders
We investigate here the computational complexity of three natural problems in directed acyclic graphs. We prove their NP Completeness and consider their restrictions to linear orde...
Serge Burckel
JAIR
2008
145views more  JAIR 2008»
13 years 4 months ago
Efficiency and Envy-freeness in Fair Division of Indivisible Goods: Logical Representation and Complexity
We consider the problem of allocating fairly a set of indivisible goods among agents from the point of view of compact representation and computational complexity. We start by ass...
Sylvain Bouveret, Jérôme Lang
ITIIS
2008
110views more  ITIIS 2008»
13 years 4 months ago
Fast Detection of Distributed Global Scale Network Attack Symptoms and Patterns in High-speed Backbone Networks
Traditional attack detection schemes based on packets or flows have very high computational complexity. And, network based anomaly detection schemes can reduce the complexity, but...
Sun Ho Kim, Byeong-hee Roh
IEICET
2006
56views more  IEICET 2006»
13 years 4 months ago
Reconfiguration Heuristics for Logical Topologies in Wide-Area WDM Networks
Abstract--We propose several heuristic algorithms that reconfigure logical topologies in wide-area wavelength-routed optical networks. Our reconfiguration algorithms attempt to kee...
Hironao Takagi, Yongbing Zhang, Hideaki Takagi