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TIP
1998
240views more  TIP 1998»
13 years 10 months ago
DCT-based motion estimation
—We propose novel discrete cosine transform (DCT) pseudophase techniques to estimate shift/delay between two onedimensional (1-D) signals directly from their DCT coefficients by...
Ut-Va Koc, K. J. Ray Liu
TIT
2002
101views more  TIT 2002»
13 years 10 months ago
Spectrally efficient noncoherent communication
This paper considers noncoherent communication over a frequency-nonselective channel in which the time-varying channel gain is unknown a priori, but is approximately constant over ...
Dilip Warrier, Upamanyu Madhow
SIAMSC
2010
116views more  SIAMSC 2010»
13 years 8 months ago
Recursively Accelerated Multilevel Aggregation for Markov Chains
A recursive acceleration method is proposed for multiplicative multilevel aggregation algorithms that calculate the stationary probability vector of large, sparse, and irreducible ...
Hans De Sterck, K. Miller, G. Sanders, M. Winlaw
VLSISP
2010
148views more  VLSISP 2010»
13 years 8 months ago
Energy-efficient Hardware Architecture and VLSI Implementation of a Polyphase Channelizer with Applications to Subband Adaptive
Abstract Polyphase channelizer is an important component of subband adaptive filtering systems. This paper presents an energy-efficient hardware architecture and VLSI implementatio...
Yongtao Wang, Hamid Mahmoodi, Lih-Yih Chiou, Hunso...
DIALM
2010
ACM
194views Algorithms» more  DIALM 2010»
13 years 8 months ago
Prioritized gossip in vehicular networks
We present a method for using real world mobility traces to identify tractable theoretical models for the study of distributed algorithms in mobile networks. We validate the metho...
Alejandro Cornejo, Calvin C. Newport