Reliable Multicast Sessions Provisioning in Sparse Light-Splitting DWDM Networks using P-Cycles

Ahmed Frikha (1) , Bernard Cousin (1) , Samer Lahoud (1) , Miklós Molnár (2)

1 ATNET - Advanced Technolgy in Networking
2 MAORE - Methods, Algorithms for Operations REsearch

In this paper, we study the node and link protection using p-cycles for dynamic multicast sessions in alloptical DWDM networks. First, we propose a new concept for protecting nodes of light-trees under the sparse light-splitting and wavelength continuity constraints. Then, we integrate our concept in a novel algorithm, named node and link protecting candidate p-cycles based algorithm with sparse light-splitting constraints (NPCC-SSC). Our algorithm enables both node and link failure recovery in dynamic multicast traffic. Extensive simulations show that the NPCC-SSC algorithm achieves the best resource utilization, and outperforms the existing approaches in terms of blocking probability and computational time.

Domaines: Réseaux et télécommunications [cs.NI]

Ahmed Frikha, Bernard Cousin, Samer Lahoud, Miklós Molnár. Reliable Multicast Sessions Provisioning in Sparse Light-Splitting DWDM Networks using P-Cycles. CQR: Communications Quality and Reliability, May 2012, San Diego, CA, United States. ⟨10.1109/CQR.2012.6267097⟩. ⟨lirmm-00738078⟩