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GLOBECOM
2009
IEEE
15 years 11 months ago
Hybrid Pilot/Quantization Based Feedback in Multi-Antenna TDD Systems
— The communication between a multiple-antenna transmitter and multiple receivers (users) with either a single or multiple-antenna each can be significantly enhanced by providin...
Umer Salim, David Gesbert, Dirk T. M. Slock, Zafer...
MICRO
2008
IEEE
153views Hardware» more  MICRO 2008»
15 years 10 months ago
CPR: Composable performance regression for scalable multiprocessor models
Uniprocessor simulators track resource utilization cycle by cycle to estimate performance. Multiprocessor simulators, however, must account for synchronization events that increas...
Benjamin C. Lee, Jamison D. Collins, Hong Wang 000...
ICASSP
2007
IEEE
15 years 10 months ago
A New Rotation Search for Dependent Rate-Distortion Optimization in Video Coding
We present a novel search algorithm which is suitable for optimizing functions with a high-dimensional discrete-valued parameter vector. The algorithm is designed to find a funct...
Tuukka Toivonen, Loren Merritt, Ville Ojansivu, Ja...
IH
2007
Springer
15 years 10 months ago
Imaging Sensor Noise as Digital X-Ray for Revealing Forgeries
In this paper, we describe a new forensic tool for revealing digitally altered images by detecting the presence of photo-response non-uniformity noise (PRNU) in small regions. This...
Mo Chen, Jessica J. Fridrich, Jan Lukás, Mi...
DCOSS
2006
Springer
15 years 8 months ago
COTA: A Robust Multi-hop Localization Scheme in Wireless Sensor Networks
In wireless sensor networks, multi-hop localization schemes are very vulnerable to various attacks such as wormholes and range modification attacks. In this paper, we propose a rob...
Yawen Wei, Zhen Yu, Yong Guan