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PVLDB
2008
126views more  PVLDB 2008»
13 years 8 months ago
Parallelizing query optimization
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...
Wook-Shin Han, Wooseong Kwak, Jinsoo Lee, Guy M. L...
TCOM
2008
146views more  TCOM 2008»
13 years 8 months ago
Noncoherent eigenbeamforming and interference suppression for outdoor OFDM systems
Abstract--We investigate a new approach to uplink communications in wideband outdoor cellular systems that can take advantage of multiple antennas at the base station in a scalable...
Noah Jacobsen, Gwen Barriac, Upamanyu Madhow
ICA
2010
Springer
13 years 7 months ago
Second Order Subspace Analysis and Simple Decompositions
Abstract. The recovery of the mixture of an N-dimensional signal generated by N independent processes is a well studied problem (see e.g. [1,10]) and robust algorithms that solve t...
Harold W. Gutch, Takanori Maehara, Fabian J. Theis
INFOCOM
2010
IEEE
13 years 7 months ago
Metrics for Evaluating Video Streaming Quality in Lossy IEEE 802.11 Wireless Networks
—Peak Signal-to-Noise Ratio (PSNR) is the simplest and the most widely used video quality evaluation methodology. However, traditional PSNR calculations do not take the packet lo...
An Chan, Kai Zeng, Prasant Mohapatra, Sung-Ju Lee,...
INFOCOM
2010
IEEE
13 years 7 months ago
Opportunistic Routing in Multi-radio Multi-channel Multi-hop Wireless Networks
— Two major factors that limit the throughput in multi-hop wireless networks are the unreliability of wireless transmissions and co-channel interference. One promising technique ...
Kai Zeng, Zhenyu Yang, Wenjing Lou
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