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VTC
2008
IEEE
102views Communications» more  VTC 2008»
14 years 2 months ago
A New Two-Step Precoding Based on Rotation Transformations in Closed-Loop MIMO Systems
— In this paper, we propose a two-step precoding approach for multiple-input multiple-output (MIMO) systems by dividing the precoding process into two steps: spatial multiplexing...
Heunchul Lee, Seokhwan Park, Inkyu Lee
SACRYPT
2007
Springer
151views Cryptology» more  SACRYPT 2007»
14 years 2 months ago
Collisions for 70-Step SHA-1: On the Full Cost of Collision Search
The diversity of methods for fast collision search in SHA-1 and similar hash functions makes a comparison of them difficult. The literature is at times very vague on this issue, wh...
Christophe De Cannière, Florian Mendel, Chr...
ECAL
2003
Springer
14 years 1 months ago
First Steps in Evolving Path Integration in Simulation
Abstract. Path integration is a widely used method of navigation in nature whereby an animal continuously tracks its location by integrating its motion over the course of a journey...
Robert Vickerstaff
ICRA
2000
IEEE
110views Robotics» more  ICRA 2000»
14 years 27 days ago
An Implicit Time-Stepping Scheme for Rigid Body Dynamics with Coulomb Friction
In this paper a new time-stepping method for simulating systems of rigid bodies is given. Unlike methods which take an instantaneous point of view, our method is based on impulse-m...
David E. Stewart, Jeffrey C. Trinkle
INFOCOM
2000
IEEE
14 years 27 days ago
A Two-Step Adaptive Error Recovery Scheme for Video Transmission over Wireless Networks
ln thippaper,weinvestigatethetra"ion ofH.263 video sequencesoverwireIessnetworkswith errorrecoveryprovided by a twostep adaptivehybrid ARQ schemeusingRS codes. Each videoframe...
Daji Qiao, Kang G. Shin