Bidirectional Optical Ring Network Having Enhanced Load Balancing and Protection

Massive growth of the Internet traffic in last decades motivated the design of high-speed optical network for traffic aggregation from different access technologies. The network architecture proposed in this paper is a low-cost flexible solution consisting of two dual buses located over a physical bidirectional ring network topology. OTDM technology is used for statistical traffic multiplexing while reservation-based, token-rotation, and CSMA/CA with a backpressure control techniques can be used for access to the shared medium at the link layer. The presented distributed resilience algorithm is able to automatically restore network functionality in case of single link break or node malfunction. KeywordsBidirectional Optical Ring, Traffic Aggregation.