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ICASSP
2011
IEEE
12 years 11 months ago
On optimal channel training for uplink network MIMO systems
We study a multi-cell frequency-selective fading uplink channel from K user terminals (UTs) to B base stations (BSs). The BSs, assumed to be oblivious of the applied encoding sche...
Jakob Hoydis, Mari Kobayashi, Mérouane Debb...
JSAC
2010
92views more  JSAC 2010»
13 years 5 months ago
Analysis of Nonlinear Transition Shift and Write Precompensation in Perpendicular Recording Systems
Abstract—In high density perpendicular magnetic recording channels, nonlinear transition shift (NLTS) is one of the distortions that can degrade the system performance. Write pre...
Zheng Wu, Paul H. Siegel, Jack K. Wolf, H. Neal Be...
ICALP
2007
Springer
14 years 1 months ago
Estimating Sum by Weighted Sampling
We study the classic problem of estimating the sum of n variables. The traditional uniform sampling approach requires a linear number of samples to provide any non-trivial guarante...
Rajeev Motwani, Rina Panigrahy, Ying Xu 0002
FPL
2006
Springer
137views Hardware» more  FPL 2006»
13 years 11 months ago
FPGA Performance Optimization Via Chipwise Placement Considering Process Variations
Both custom IC and FPGA designs in the nanometer regime suffer from process variations. But different from custom ICs, FPGAs' programmability offers a unique design freedom t...
Lerong Cheng, Jinjun Xiong, Lei He, Mike Hutton
ICCV
2009
IEEE
15 years 10 days ago
Globally Optimal Affine Epipolar Geometry from Apparent Contours
We study the problem of estimating the epipolar geometry from apparent contours of smooth curved surfaces with affine camera models. Since apparent contours are viewpoint depend...
Gang Li, Yanghai Tsin