A distributed system is said to be self-stabilizing if it will eventually reach a legitimate system state regardless of its initial state. Because of this property, a self-stabilizing system is extremely robust against failures; it tolerates any finite number of transient failures. The ring orientation problem for a ring is the problem of all the processors agreeing on a common ring direction. This paper focuses on the problem of designing a deterministic self-stabilizing ring orientation system with a small number of processor states under the distributed daemon. Because of the impossibility of symmetry breaking, under the distributed daemon, no such systems exist when the number n of processors is even. Provided that n is odd, the best known upper bound on the number of states is 256 in the link-register model, and eight in the state-reading model. We improve the bound down to 63 = 216 in the link-register model.
|Number of pages||6|
|Journal||IEEE Transactions on Parallel and Distributed Systems|
|Publication status||Published - Dec 1 1998|
All Science Journal Classification (ASJC) codes
- Signal Processing
- Hardware and Architecture
- Computational Theory and Mathematics