Green optical networks with connection availability guarantee

Service Provisioning to Provide Per-Connection-Based Availability Guarantee in WDM Mesh Networks

Protection schemes for WDM mesh networks (dedicated-path, shared-path, etc.) are typically based on the single-failure scenario. When fiber-cut rate and network maintenance frequency are high, the network operator needs novel methods to handle multiple, near-simultaneous failures where different network components (including fiber spans) may have different failure rates. Service reliability det...

Optical multicast with differentiated leaf availability guaranteed in WDM networks

As multicast applications become more and more popular, implementing multicast in optical domain has attracted more and more attention due to its more efficient bandwidth usage. And also these services have Quality-of-Service (QoS) requirement. In this paper, the problem of cost-effective optical multicast provisioning to satisfy the differentiated leaf availability requirements is formally sta...

Connection-oriented Networks SONET/SDH, ATM, MPLS and OPTICAL NETWORKS

message RSVP message Connection create request Path Connection create response Path, PathErr Connection create confirmation ResvConf Connection delete request Path or Resv Connection delete response PathErr, PathTear Connection status enquiry implicit Connection status response implicit Notification PathErr, ResvErr

Survivable Green Optical Backbone Networks with Shared Backup Protection

Green optical orthogonal frequency-division multiplexing networks

Orthogonal frequency-division multiplexing (OFDM) has been proposed as an enabling technique for elastic optical networks to support heterogeneous traffic demands by enabling rate and modulation adaptive bandwidth allocation. The authors investigate the energy efficiency of optical OFDM-based networks. A mixed integer linear programming model is developed to minimise the total power consumption...