Back to the main page of LSP/EPFL Peripheral Systems Laboratory (EPFL-DI/LSP)
[Publications] [Other]

Rating of Routing by Redundancy Overall Need

Emin Gabrielyan

Published in Proceedings of 6th International Conference on Telecommunications, ITST’06, June 21-23, 2006, Chengdu, China, pp. 786-789

Thanks to the large buffering time of off-line streaming applications, erasure resilient Forward Error Correction (FEC) codes can improve the reliability of communication particularly well. However real-time streaming puts hard restrictions on the buffer size making FEC inefficient for combating long link failures on single path routes. Path diversity is orthogonal to buffering and permits real-time streaming to also benefit from application of FEC. We introduce a capillary routing algorithm offering layer by layer a wide range of multi-path routing topologies starting from a simple solution and evolving toward reliable routing patterns with highly developed path diversity. The friendliness of a multi-path routing pattern is rated by the overall amount of FEC redundancy required for combating the non-simultaneous failures of all links of the communication footprint. We rated the friendliness of a dozen of capillary routing layers, built on several hundreds of network samples obtained from a random walk Mobile Ad-Hoc Network (MANET). The overall requirement in redundant FEC codes decreases substantially as the spreading of the routing grows.

Download the full paper: PDF 148 kb


<basile.schaeli@epfl(add: .ch)>
Last modified: 2007/09/26 21:27:39