Combinatorial optimization: algorithms and complexity
Combinatorial optimization: algorithms and complexity
Packet scheduling in broadcast WDM networks with arbitrary transceiver tuning latencies
IEEE/ACM Transactions on Networking (TON)
Journal of High Speed Networks - Special issue on optical networking
Algorithms on Trees and Graphs
Algorithms on Trees and Graphs
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Performance Evaluation of Time Switching in TDM Wavelength Routing Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Multicast protection scheme in survivable WDM optical networks
Journal of Network and Computer Applications
Wavelength selective devices for WDM communication systems
ANTS'09 Proceedings of the 3rd international conference on Advanced networks and telecommunication systems
Techniques for optical packet switching and optical burst switching
IEEE Communications Magazine
All-optical packet switching for metropolitan area networks: opportunities and challenges
IEEE Communications Magazine
IEEE Communications Magazine
A novel all-optical transport network with time-shared wavelength channels
IEEE Journal on Selected Areas in Communications
Scheduling multirate sessions in time division multiplexed wavelength-routing networks
IEEE Journal on Selected Areas in Communications
Routing and time-slot assignment in optical TDM networks
IEEE Journal on Selected Areas in Communications
WDM-based local lightwave networks. I. Single-hop systems
IEEE Network: The Magazine of Global Internetworking
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An all-optical approach to achieve finer bandwidth granularity is to time division multiplex low capacity circuits on each wavelength channel and switch time-wavelength slots optically within the network. One such time-slotted network proposed in the literature is the Time Domain Wavelength Interleaved Network (TWIN), which eliminates slot switching within the network by using a non-reconfigurable core and an intelligent edge utilizing a fast tunable laser to emulate fast switching. In contrast to the TWIN, an optical time-slotted network which incorporates slot-switching within the network is the Time Wavelength Switched Network (TWSN), wherein the Time Wavelength Space Routers (TWSRs) are configured to change their routing pattern on a time-slot basis. The TWIN network assigns a unique wavelength to each node in the network and thus requires a total of W=N wavelengths for an N-node network. We call such a TWIN network as an unconstrained TWIN network. In this paper, we first provide integer linear programs and heuristic algorithms to solve the scheduling problem for a static traffic matrix (of connections) for both, the unconstrained TWIN and the TWSN networks and also compare their performances under a dynamic traffic scenario. To address the problem of scalability of the unconstrained TWIN network, we propose to design a wavelength-constrained (i.e., W