We study a bottleneck Steiner tree problem: given a set P = {p(1,) p(2), -
- -, p(n) } of n terminals in the Euclidean plane and a positive integer k,
find a Steiner tree with at most k Steiner points such that the length of
the longest edges in the tree is minimized. The problem has applications in
the design of wireless communication networks. We give a ratio-1.866 appro
ximation algorithm for the problem. (C) 2002 Elsevier Science B.V. All righ
ts reserved.