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4OR
2007
99views more  4OR 2007»
13 years 9 months ago
Combinatorial optimization problems in wireless switch design
The purpose of this paper is to illustrate the diversity of combinatorial problems encountered in the design of wireless switching systems. This is done via a representative selec...
Renaud Sirdey
WDAG
2009
Springer
195views Algorithms» more  WDAG 2009»
14 years 3 months ago
A Local 2-Approximation Algorithm for the Vertex Cover Problem
We present a distributed 2-approximation algorithm for the minimum vertex cover problem. The algorithm is deterministic, and it runs in (∆ + 1)2 synchronous communication rounds,...
Matti Åstrand, Patrik Floréen, Valent...
MOBIHOC
2004
ACM
14 years 8 months ago
Internal synchronization of drift-constraint clocks in ad-hoc sensor networks
Clock synchronization is a crucial basic service in typical sensor networks, since the observations of distributed sensors more often than not need to be ordered ("a happened...
Lennart Meier, Philipp Blum, Lothar Thiele
ICALP
2009
Springer
14 years 9 months ago
Wireless Communication Is in APX
Abstract. In this paper we address a common question in wireless communication: How long does it take to satisfy an arbitrary set of wireless communication requests? This problem i...
Magnús M. Halldórsson, Roger Wattenh...
ICASSP
2011
IEEE
13 years 15 days ago
Optimum chip pulse shape design for timing synchronization
In this work a systematic methodology is presented to design optimum chip pulse shapes for DS-CDMA systems for timing synchronization. A nonlinear bi-objective problem with additi...
Felix Antreich, Josef A. Nossek