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GROUP
2009
ACM
15 years 7 months ago
GroupMind: supporting idea generation through a collaborative mind-mapping tool
Collaborative brainstorming can be a challenging but important part of creative group problem solving. Mind-mapping has the potential to enhance the brainstorming process but has ...
Patrick C. Shih, David H. Nguyen, Sen H. Hirano, D...
CE
2008
128views more  CE 2008»
15 years 3 months ago
Beyond threaded discussion: Representational guidance in asynchronous collaborative learning environments
Although most online learning environments are predominately text based, researchers have argued that representational support for the conceptual structure of a problem would addr...
Daniel D. Suthers, Ravi K. Vatrapu, Richard Medina...
121
Voted
INFOCOM
2009
IEEE
15 years 10 months ago
Power Controlled Scheduling with Consecutive Transmission Constraints: Complexity Analysis and Algorithm Design
Abstract—We study the joint power control and minimumframe-length scheduling problem in wireless networks, under the physical interference model and subject to consecutive transm...
Liqun Fu, Soung Chang Liew, Jianwei Huang
HASE
2008
IEEE
15 years 10 months ago
Power Optimization in Fault-Tolerant Mobile Ad Hoc Networks
—In this paper, we investigate the transmission-power assignment problem for k-connected mobile ad hoc networks (MANETs), the problem of optimizing the lifetime of a MANET at a g...
Oliviero Riganelli, Radu Grosu, Samir R. Das, C. R...
127
Voted
SECON
2008
IEEE
15 years 10 months ago
Deploying Directional Sensor Networks with Guaranteed Connectivity and Coverage
Abstract—In contrast to existing work on the connected coverage problem in wireless sensor networks which assumes omnidirectional sensors with disk-like sensing range, this paper...
Xiaofeng Han, Xiang Cao, Errol L. Lloyd, Chien-Chu...