A hybrid instantaneous recovery route design scheme with two different coding aware scenarios

Abstract

This letter proposes a hybrid scheme for instantaneous recovery 1+1 protection route design for all possible source-destination pairs in a network. In the proposed scheme two different coding aware scenarios, namely the TS (traffic splitting) scenario and the 2SD (two sources and a common destination) scenario, are used intelligently according to the largest effective gain first policy. We compare the total costs of all the working and protection paths obtained by the proposed scheme, the TS scenario, and the 2SD scenario. Numerical results observe that the proposed scheme achieves more resource saving than the TS or 2SD scenario in our examined networks.