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SIBGRAPI
2008
IEEE
16 years 24 days ago
An Automatic Crude Registration of Two Partially Overlapping Range Images
We present a crude registration algorithm for two partially overlapping range images acquired from a rigid object. Our proposal is characterized by two novel features: drastic dat...
Mercedes Rocío Gonzales Márquez, Shi...
GLOBECOM
2007
IEEE
16 years 22 days ago
Improving Connectivity via Relays Deployment in Wireless Sensor Networks
Abstract— Enhancing the connectivity of wireless sensor networks is necessary to avoid the occurrence of coverage gaps. In this paper, we aim at improving the network connectivit...
Ahmed S. Ibrahim, Karim G. Seddik, K. J. Ray Liu
GLOBECOM
2007
IEEE
16 years 22 days ago
Opportunistic Access with Random Subchannel Backoff (OARSB) for OFDMA Uplink
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
ICC
2007
IEEE
150views Communications» more  ICC 2007»
16 years 22 days ago
Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems
— Blind and semiblind adaptive schemes are proposed for joint maximum likelihood (ML) channel estimation and data detection for multiple-input multiple-output (MIMO) systems. The...
Mohammed Abuthinien, Sheng Chen, Andreas Wolfgang,...
ICC
2007
IEEE
119views Communications» more  ICC 2007»
16 years 22 days ago
Graph-Based Detector for BLAST Architecture
Abstract— We propose belief propagation (BP) based detection algorithms for the Bell labs layered space-time (BLAST) architectures. We first develop a full complexity BP algorit...
Jun Hu, Tolga M. Duman