Optimal capacity placement for path restoration in STM or ATM mesh-survivable networks
IEEE/ACM Transactions on Networking (TON)
Generalized loop-back recovery in optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Comparative Study on Restoration Schemes of Survivable ATM Networks
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
IEEE Communications Magazine
Dimensioning of survivable WDM networks
IEEE Journal on Selected Areas in Communications
Optimal design and evaluation of survivable WDM transport networks
IEEE Journal on Selected Areas in Communications
A practical approach to operating survivable WDM networks
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Parallel and Distributed Systems
Preconfigured structures for survivable WDM networks
ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
Computer Networks: The International Journal of Computer and Telecommunications Networking
ILP-based design of survivable broadcast trees
HPSR'09 Proceedings of the 15th international conference on High Performance Switching and Routing
ILP formulations for non-simple p-cycle and p-trail design in WDM mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Differentiated quality of service in survivable WDM mesh networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
CAPEX costs of lightly loaded restorable networks under a consistent WDM layer cost model
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
A resilient transparent optical network design with a pre-configured extended-tree scheme
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
PXT-based path protection for multicast sessions in WDM networks
Sarnoff'10 Proceedings of the 33rd IEEE conference on Sarnoff
M2-CYCLE: An optical layer algorithm for fast link failure detection in all-optical mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Capacity efficient shared protection and fast restoration scheme in self-configured optical networks
SelfMan'06 Proceedings of the Second IEEE international conference on Self-Managed Networks, Systems, and Services
Designing fast and bandwidth efficient protection scheme for WDM optical networks
NETWORKING'06 Proceedings of the 5th international IFIP-TC6 conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems
Differentiated quality-of-recovery in survivable optical mesh networks using p-structures
IEEE/ACM Transactions on Networking (TON)
Differentiated quality-of-protection in survivable WDM mesh networks using p-structures
Computer Communications
Hi-index | 0.00 |
Conventional optical networks are based on SONET rings, but since rings are known to use bandwidth inefficiently, there has been much research into shared mesh protection, which promises significant bandwidth savings. Unfortunately, most shared mesh protection schemes cannot guarantee that failed traffic will be restored within the 50-ms timeframe that SONET standards specify. A notable exception is the p-cycle scheme of Grover and Stamatelakis. We argue, however, that p-cycles have certain limitations, e.g., there is no easy way to adapt p-cycles to a path-based protection scheme, and p-cycles seem more suited to static traffic than to dynamic traffic. In this paper we show that the key to fast restoration times is not a ring-like topology per se, but rather the ability to pre-cross-connect protection paths. This leads to the concept of a pre-cross-connected trail or PXT, which is a structure that is more flexible than rings and that adapts readily to both path-based and link-based schemes and to both static and dynamic traffic. The PXT protection scheme achieves fast restoration speeds, and our simulations, which have been carefully chosen using ideas from experimental design theory, show that the bandwidth efficiency of the PXT protection scheme is comparable to that of conventional shared mesh protection schemes.