A Location-Routing Problem in Designing the Optical Internet with WDM Systems
نویسندگان
چکیده
In this talk, we consider a location-routing problem in designing the optical Internet with WDM systems. This problem arises from the design of broadband local access networks that deliver high-speed access service to residential subscribers. In this problem, we consider fiber routing and gateway location. For routing problem, we determine the optimal dimensioning of link capacity, and seek to find the fiber routing of traffic between demand node and gateway node. In the optical Internet architecture of this talk, we consider WDM systems as a viable means to increase capacity. Couple with fiber routing problem, we address the optimal location problem of the gateway for minimizing the total cost of routing and WDM systems.
منابع مشابه
Designing a green location routing inventory problem considering transportation risks and time window: a case study
This study introduces a green location, routing and inventory problem with customer satisfaction, backup distribution centers and risk of routes in the form of a non-linear mixed integer programming model. In this regard, time window is considered to increase the customer satisfaction of the model and transportation risks is taken into account for the reliability of the system. In addition, dif...
متن کاملNovel Four-Channel All Optical Demultiplexer Based on Square PhCRR for Using WDM Applications
Ring resonators have always been referred to as a highly flexible structurefor designing optical devices. In this study, we have designed and simulation a fourchannel optical demultiplexer using square photonic crystal ring resonator. The squarelattice constant for this purpose structure is used. The purposed structure has an averagecrosstalk, transmission coefficient, q...
متن کاملA Novel Protection Guaranteed, Quality of Transmission Aware Routing and Wavelength Assignment Algorithm for All-optical Networks
Transparent All Optical Networks carry huge traffic and any link failure can cause the loss of gigabits of data; hence protection and its guarantee becomes necessary at the time of failure. Many protection schemes were presented in the literature, but none of them speaks about protection guarantee. Also, in all optical networks, due to absence of regeneration capabilities, the physical layer i...
متن کاملMulti-Objective Location-Routing Model With Multiple Transportation Modes For Designing Relief Networks Under Uncertainty
A three-level relief chain including a number of suppliers in fixed locations, candidate distribution centers and affected areas at certain points are considered. A mixed integer nonlinear programming model is proposed for open transportation location routing problem by considering split delivery of demand. To solve a realistic problem, foregoing parameters are considered as fuzzy in our propos...
متن کاملSolving a bi-objective mathematical model for location-routing problem with time windows in multi-echelon reverse logistics using metaheuristic procedure
During the last decade, the stringent pressures from environmental and social requirements have spurred an interest in designing a reverse logistics (RL) network. The success of a logistics system may depend on the decisions of the facilities locations and vehicle routings. The location-routing problem (LRP) simultaneously locates the facilities and designs the travel routes for vehicles among ...
متن کامل