- Abstract:
-
The following 'constraint matrix span problem' arises in the assignment of radio channels in cellular communications systems. Given a graph G with a positive integer length l(xy) for each edge xy, and given a positive integer B, can we assign to each vertex x a channel φ(x) from 1,...,B such that |φ(x) - φ(y)|≥l(xy) for each edge xy? We show that this problem is NP-complete for graphs of treewidth at most 3, but there is a fully polynomial time approximation scheme for the problem on graphs o...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1016/S0012-365X(03)00236-X
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- Volume:
- 273
- Issue:
- 1-3
- Pages:
- 183-192
- Publication date:
- 2003
- DOI:
- ISSN:
-
0012-365X
- URN:
-
uuid:9793acba-8dbe-4042-ba68-ecd5c6197f96
- Source identifiers:
-
102297
- Local pid:
- pubs:102297
- Copyright date:
- 2003
Conference
Channel assignment on graphs of bounded treewidth.
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