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CORR
2010
Springer
77views Education» more  CORR 2010»
13 years 6 months ago
Reduced ML-Decoding Complexity, Full-Rate STBCs for $2^a$ Transmit Antenna Systems
— For an nt transmit, nr receive antenna system (nt × nr system), a full-rate space time block code (STBC) transmits nmin = min(nt, nr) complex symbols per channel use and in ge...
K. Pavan Srinath, B. Sundar Rajan
ITIIS
2010
79views more  ITIIS 2010»
13 years 6 months ago
HMM-based Adaptive Frequency-Hopping Cognitive Radio System to Reduce Interference Time and to Improve Throughput
Cognitive Radio is an advanced enabling technology for the efficient utilization of vacant spectrum due to its ability to sense the spectrum environment. It is important to determ...
Sung Hwan Shon, Sung Jeen Jang, Jae Moung Kim
CIKM
2005
Springer
14 years 1 months ago
On reducing redundancy and improving efficiency of XML labeling schemes
The basic relationships to be determined in XML query processing are ancestor-descendant (A-D), parent-child (P-C), sibling and ordering relationships. The containment labeling sc...
Changqing Li, Tok Wang Ling, Jiaheng Lu, Tian Yu
ICRA
2009
IEEE
106views Robotics» more  ICRA 2009»
14 years 2 months ago
Generic nonlinear model of reduced scale UAVs
— This paper proposes, through a survey of models of several UAV-Structures, a generic nonlinear model for reduced scale aerial robotic vehicles (6 DOF)1 . Dynamics of an aircraf...
Thibault Cheviron, Abdelhamid Chriette, Franck Ple...
CASC
2006
Springer
100views Mathematics» more  CASC 2006»
13 years 11 months ago
Reducing Computational Costs in the Basic Perturbation Lemma
Homological Perturbation Theory [11, 13] is a well-known general method for computing homology, but its main algorithm, the Basic Perturbation Lemma, presents, in general, high com...
Ainhoa Berciano, María José Jim&eacu...