Sciweavers

3862 search results - page 645 / 773
» Adaptive Noisy Optimization
Sort
View
ICASSP
2008
IEEE
16 years 26 days ago
Least-squares design of subsampled allpass transformed DFT filter-banks with LTI property
A new design approach for an allpass transformed analysis-synthesis filter-bank (AS FB) with subsampling is proposed, which can be used for adaptive subband processing with non-u...
Heinrich W. Löllmann, Guido Dartmann, Peter V...
ICASSP
2008
IEEE
16 years 26 days ago
Time-frequency localization from sparsity constraints
In the case of multicomponent AM-FM signals, the idealized representation which consists of weighted trajectories on the time-frequency (TF) plane, is intrinsically sparse. Recent...
Pierre Borgnat, Patrick Flandrin
ICC
2008
IEEE
130views Communications» more  ICC 2008»
16 years 26 days ago
A Polynomial-Time Approximation Algorithm for Weighted Sum-Rate Maximization in UWB Networks
— Scheduling in an ad hoc wireless network suffers from the non-convexity of the cost function, caused by the interference between communication links. In previous optimization t...
Gyouhwan Kim, Qiao Li, Rohit Negi
ICC
2008
IEEE
138views Communications» more  ICC 2008»
16 years 26 days ago
Designing File Replication Schemes for Peer-to-Peer File Sharing Systems
—Peer-to-peer (P2P) file sharing systems are becoming increasingly popular due to their flexibility and scalability. We propose a new model to design file replication schemes ...
Jian Ni, Jie Lin, S. J. Harrington, Naveen Sharma
ICDCS
2008
IEEE
16 years 26 days ago
Mobility-Assisted Spatiotemporal Detection in Wireless Sensor Networks
Wireless sensor networks (WSNs) deployed for missioncritical applications face the fundamental challenge of meeting stringent spatiotemporal performance requirements using nodes w...
Guoliang Xing, Jianping Wang, Ke Shen, Qingfeng Hu...