NEAR-OPTIMAL CONFLICT-FREE CHANNEL SET ASSIGNMENTS FOR AN OPTICAL CLUSTER-BASED HYPERCUBE NETWORK

Recently a class of scalable multi-star optical networks is proposed. In this network class nodes are grouped into clusters. Each cluster em ploys a separate pair of broadcast and select couplers. The clusters a re interconnected via fiber links according to a regular topology. Thi s approach efficiently combines time and/or wavelength division with d irect space division. One important issue for this network class is th e conflict-free channel set assignment that maximizes spatial re-use o f channels. This paper studies the conflict-free channel set assignmen t for the hypercube cluster interconnection topology. The approach in this paper is novel and is conjectured to be optimal.