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On using forward error correction for loss recovery in optical burst switched networks

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3 Author(s)
Praveen, J. ; Dept. of Comput. Sci. & Eng., Indian Inst. of Technol., Madras, India ; Praveen, B. ; Murthy, C.S.R.

An important issue in optical burst switched (OBS) networks is the loss of bursts at intermediate nodes due to contention. Such contention losses, usually do not mean a situation of congestion. In this paper, we propose for the first time, a loss recovery mechanism using forward error correction to recover bursts that are lost due to contention. Using FEC, for every K bursts, N-K redundant bursts are also sent to the destination. This redundancy can be used to recover from losses in the K data bursts. Our mechanism can also be used to recover from losses due to network component (link/node) failures. We demonstrate the effectiveness of our mechanism by comparing with no protection and 1+1 protection using simulation studies.

Published in:

High Performance Switching and Routing, 2005. HPSR. 2005 Workshop on

Date of Conference:

12-14 May 2005