Ahmed Frikha, Samer Lahoud, Bernard Cousin, and Miklos Molnar (2012)
Reliable multicast sessions provisioning in sparse light-splitting DWDM networks using p-cycles
In: Communications Quality and Reliability (CQR), 2012 IEEE International Workshop Technical Committee on, pages 1 -6.
In this paper, we study the node and link protection using
p-cycles for dynamic multicast sessions in all-optical 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.