Abstract
We consider the frequency assignment (broadcast scheduling) problem for packet radio networks. Such networks are naturally modeled by graphs with a certain geometric structure. The problem of broadcast scheduling can be cast as a variant of the vertex coloring problem (called the distance-2 coloring problem) on the graph that models a given packet radio network. We present efficient approximation algorithms for the distance-2 coloring problem for various geometric graphs including those that naturally model a large class of packet radio networks. The class of graphs considered include (r,s)-civilized graphs, planar graphs, graphs with bounded genus, etc.
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Krumke, S.O., Marathe, M.V. & Ravi, S. Models and Approximation Algorithms for Channel Assignment in Radio Networks. Wireless Networks 7, 575–584 (2001). https://doi.org/10.1023/A:1012311216333
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DOI: https://doi.org/10.1023/A:1012311216333