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VTC
2008
IEEE
156views Communications» more  VTC 2008»
15 years 6 months ago
Channel Asymmetry and Random Time Slot Hopping in OFDMA-TDD Cellular Networks
Abstract—This paper studies the performance of orthogonal frequency division multiple access – time division duplex (OFDMA-TDD) cellular networks when jointly applying dynamic ...
Ellina Foutekova, Patrick Agyapong, Harald Haas
AINA
2006
IEEE
15 years 3 months ago
Efficient Authentication for Reactive Routing Protocols
Ad hoc networks are dynamic networks formed "on the fly" by a set of nodes. Achieving secure routing in such networks is a big challenge. Asymmetric signature schemes pr...
Raghav Bhaskar, Javier Herranz, Fabien Laguillaumi...
ISBI
2008
IEEE
16 years 12 days ago
An algorithm to map asymmetries of bilateral objects in point clouds
We present a method to automatically quantify the local asymmetries of bilateral structures in point clouds. The method relies on the robust computation of the approximate symmetr...
Benoît Combès, Robin Hennessy, John W...
TCSV
2010
14 years 6 months ago
Group Event Detection With a Varying Number of Group Members for Video Surveillance
This paper presents a novel approach for automatic recognition of group activities for video surveillance applications. We propose to use a group representative to handle the recog...
Weiyao Lin, Ming-Ting Sun, Radha Poovendran, Zheng...
ICC
2008
IEEE
126views Communications» more  ICC 2008»
15 years 6 months ago
Network Coding for Two-Way Relaying: Rate Region, Sum Rate and Opportunistic Scheduling
—Network coding for two-way relaying in a three-node network is considered. The achievable rate regions under both traditional four-slot multi-hopping (FSMH) and network coding (...
Chun-Hung Liu, Feng Xue