Routing with Improved Communication-Space Trade-Off
نویسندگان
چکیده
Given a weighted undirected network with arbitrary node names, we present a family of routing schemes characterized by an integral parameter κ ≥ 1. The scheme uses Õ(n logD) space routing table at each node, and routes along paths of linear stretch O(κ), where D is the normalized diameter of the network. When D is polynomial in n, the scheme has asymptotically optimal stretch factor. With the same memory bound, the best previous results obtained stretch O(κ). Of independent interest, we also construct a single-source nameindependent routing scheme for uniform weighted graphs with O(1) stretch and Õ(1) bits of storage. With the same stretch, the best previous results obtained memory Õ(n).
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