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DFG
2009
Springer
14 years 2 months ago
Interactive Communication, Diagnosis and Error Control in Networks
s of the work of our research group are given in the following poster of the final meeting. Network Coding Network Coding has emerged as a new paradigm that has influenced Inform...
Rudolf Ahlswede, Harout K. Aydinian
FSTTCS
2009
Springer
14 years 2 months ago
Kernels for Feedback Arc Set In Tournaments
A tournament T = (V, A) is a directed graph in which there is exactly one arc between every pair of distinct vertices. Given a digraph on n vertices and an integer parameter k, th...
Stéphane Bessy, Fedor V. Fomin, Serge Gaspe...
FOCS
2008
IEEE
14 years 2 months ago
Beating the Random Ordering is Hard: Inapproximability of Maximum Acyclic Subgraph
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
Venkatesan Guruswami, Rajsekar Manokaran, Prasad R...
ICCCN
2008
IEEE
14 years 2 months ago
TRACK: A Novel Connected Dominating Set based Sink Mobility Model for WSNs
—The core functionality of a wireless sensor network (WSN) is to detect deviations in expected normal behavior and report it to the sink. In this paper, we propose TRACK — a no...
Avinash Srinivasan, Jie Wu
INFOCOM
2008
IEEE
14 years 2 months ago
Minimum Cost Topology Construction for Rural Wireless Mesh Networks
—IEEE 802.11 WiFi equipment based wireless mesh networks have recently been proposed as an inexpensive approach to connect far-flung rural areas. Such networks are built using h...
Debmalya Panigrahi, Partha Dutta, Sharad Jaiswal, ...