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CSE
2008
IEEE
13 years 10 months ago
Energy Efficient Broadcast in Distributed Ad Hoc Wireless Networks
In this work we present algorithms for Minimum Energy Consumption Broadcast Subgraph (MECBS) problem. First, we focus on designing distributed algorithms for MECBS. To our knowled...
Subhas Kumar Ghosh
INFOCOM
2009
IEEE
14 years 3 months ago
Approximation Algorithms for Data Broadcast in Wireless Networks
—Broadcasting is a fundamental operation in wireless networks and plays an important role in the communication protocol design. In multihop wireless networks, however, interferen...
Rajiv Gandhi, Yoo-Ah Kim, Seungjoon Lee, Jiho Ryu,...
INFOCOM
2008
IEEE
14 years 3 months ago
On the Construction of a Maximum-Lifetime Data Gathering Tree in Sensor Networks: NP-Completeness and Approximation Algorithm
Abstract—Energy efficiency is critical for wireless sensor networks. The data gathering process must be carefully designed to conserve energy and extend the network lifetime. Fo...
Yan Wu, Sonia Fahmy, Ness B. Shroff
SPAA
2009
ACM
14 years 9 months ago
Brief announcement: parameterized maximum and average degree approximation in topic-based publish-subscribe overlay network desi
Designing an overlay network for publish/subscribe communication in a system where nodes may subscribe to many different topics of interest is of fundamental importance. For scala...
Melih Onus, Andréa W. Richa
COCOON
2005
Springer
14 years 2 months ago
Bicriteria Network Design via Iterative Rounding
We study the edge-connectivity survivable network design problem with an additional linear budget constraint. We give a strongly polynomial time (3, 3)-approximation algorithm for ...
Piotr Krysta