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JGT
2007
73views more  JGT 2007»
15 years 6 months ago
New bounds on the edge number of a k-map graph
It is known that for every integer k ≥ 4, each k-map graph with n vertices has at most kn − 2k edges. Previously, it was open whether this bound is tight or not. We show that ...
Zhi-Zhong Chen
TVCG
2008
123views more  TVCG 2008»
15 years 6 months ago
Effectiveness of Animation in Trend Visualization
Animation has been used to show trends in multi-dimensional data. This technique has recently gained new prominence for presentations, most notably with Gapminder Trendalyzer. In T...
George G. Robertson, Roland Fernandez, Danyel Fish...
TWC
2008
193views more  TWC 2008»
15 years 6 months ago
Coverage for target localization in wireless sensor networks
Target tracking and localization are important applications in wireless sensor networks. Although the coverage problem for target detection has been intensively studied, few consi...
Wei Wang 0002, Vikram Srinivasan, Bang Wang, Kee C...
TWC
2008
139views more  TWC 2008»
15 years 6 months ago
Optimal and Suboptimal Power Allocation Schemes for OFDM-based Cognitive Radio Systems
In this paper, we investigate an optimal power loading algorithm for an OFDM-based cognitive radio (CR) system. The downlink transmission capacity of the CR user is thereby maximiz...
Gaurav Bansal, Md. Jahangir Hossain, Vijay K. Bhar...
TWC
2008
85views more  TWC 2008»
15 years 6 months ago
Bandwidth partitioning in decentralized wireless networks
This paper addresses the following question, which is of interest in the design of a multiuser decentralized network. Given a total system bandwidth of W Hz and a fixed data rate c...
Nihar Jindal, Jeffrey G. Andrews, Steven Weber