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ICC
2007
IEEE
120views Communications» more  ICC 2007»
14 years 3 months ago
Joint Power and Constellation Size Adaptation for Mobile Multicast Employing MQAM Over Wireless Fading Channels
Abstract— We propose a power and constellation-size adaptation scheme for the multicast system employing multilevel quadrature amplitude modulation (MQAM) with discrete constella...
Qinghe Du, Xi Zhang
CHI
2005
ACM
14 years 9 months ago
It's a jungle out there: practical considerations for evaluation in the city
An essential aspect of mobile and ubiquitous computing research is evaluation within the expected usage context, including environment. When that environment is an urban center, i...
Melanie Kellar, Derek F. Reilly, Kirstie Hawkey, M...
ADHOC
2005
100views more  ADHOC 2005»
13 years 8 months ago
Robust position-based routing for wireless ad hoc networks
We consider a wireless ad hoc network composed of a set of wireless nodes distributed in a two dimensional plane. Several routing protocols based on the positions of the mobile ho...
Kousha Moaveninejad, Wen-Zhan Song, Xiang-Yang Li
ECCV
2006
Springer
14 years 10 months ago
Self-calibration of a General Radially Symmetric Distortion Model
Abstract. We present a new approach for self-calibrating the distortion function and the distortion center of cameras with general radially symmetric distortion. In contrast to mos...
Jean-Philippe Tardif, Peter F. Sturm, Sébas...
STOC
1993
ACM
123views Algorithms» more  STOC 1993»
14 years 24 days ago
Constructing small sample spaces satisfying given constraints
Abstract. The subject of this paper is nding small sample spaces for joint distributions of n discrete random variables. Such distributions are often only required to obey a certa...
Daphne Koller, Nimrod Megiddo