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FSE
2011
Springer
218views Cryptology» more  FSE 2011»
7 years 6 months ago
Practical Near-Collisions and Collisions on Round-Reduced ECHO-256 Compression Function
In this paper, we present new results on the second-round SHA-3 candidate ECHO. We describe a method to construct a collision in the compression function of ECHO-256 reduced to fou...
Jérémy Jean, Pierre-Alain Fouque
ICASSP
2011
IEEE
7 years 7 months ago
Collision resolution in multiple access networks with physical-layer network coding and distributed fountain coding
—We propose two new protocols based on physical layer network coding for collision resolution in multiple access networks. When a collision occurs the receiver decodes the sum of...
Giuseppe Cocco, Christian Ibars, Deniz Günd&u...
VTC
2010
IEEE
150views Communications» more  VTC 2010»
8 years 1 months ago
Path Selection Algorithms for Multi-Hop VANETs
—In this paper, we introduce a collision model for vehicular cluster and we propose path selection algorithms for multi-hop VANETs. That is, we propose the intuitive algorithm na...
Chulhee Jang, Jae Hong Lee
IVA
2010
Springer
8 years 1 months ago
A Velocity-Based Approach for Simulating Human Collision Avoidance
We present a velocity-based model for realistic collision avoidance among virtual characters. Our approach is elaborated from experimental data and is based on the simple hypothesi...
Ioannis Karamouzas, Mark H. Overmars
INFOCOM
2010
IEEE
8 years 1 months ago
ACR: Active Collision Recovery in Dense Wireless Sensor Networks
Abstract—Packet collision causes packet loss and wastes resources in wireless networks. It becomes even worse in dense WSNs, due to burst-traffic and congestion around sinks. In...
Yafeng Wu, Gang Zhou, John A. Stankovic
ICRA
2010
IEEE
114views Robotics» more  ICRA 2010»
8 years 1 months ago
Navigating multiple simple-airplanes in 3D workspace
Abstract— We present an algorithm for collision-free navigation of multiple flying robots in three-dimensional workspace. Our approach extends the model of a simple car to a sim...
Jamie Snape, Dinesh Manocha
IJRR
2002
143views more  IJRR 2002»
8 years 3 months ago
Persistent Passive Hopping and Juggling is Possible Even With Plastic Collisions
We describe simple one-dimensional models of passive (no energy input, no control), generally dissipative, vertical hopping and oneball juggling. The central observation is that i...
Anindya Chatterjee, R. Pratap, C. K. Reddy, Andy R...
IJACT
2008
101views more  IJACT 2008»
8 years 3 months ago
Practical key-recovery attack against APOP, an MD5-based challenge-response authentication
Abstract: Hash functions are used in many cryptographic constructions under various assumptions, and the practical impact of collision attacks is often unclear. In this paper, we s...
Gaëtan Leurent
ENGL
2008
68views more  ENGL 2008»
8 years 3 months ago
A Novel CFD Scheme for Collision of Micro-bubbles in Turbulent Flow
A numerical scheme for bubble trajectories including their collisions is developed. An Eulerian-Lagrangian computational scheme is used to study the bubble trajectories. The 2D ave...
Arman Raoufi, Mehrzad Shams, Reza Ebrahimi
MOBICOM
2010
ACM
8 years 3 months ago
Retransmission != repeat: simple retransmission permutation can resolve overlapping channel collisions
Collisions in overlapping channels are becoming an increasingly important problem in the deployment of high-speed wireless networks. In this paper, we present Remap, a simple, nov...
Erran L. Li, Kun Tan, Harish Viswanathan, Ying Xu,...
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