منابع مشابه
On Ring Grooming in optical networks
An instance I of Ring Grooming consists of m sets A1, A2, . . . , Am from the universe {0, 1, . . . , n − 1} and an integer g ≥ 2. The unrestricted variant of Ring Grooming, referred to as Unrestricted Ring Grooming, seeks a partition {P1, P2, . . . , Pk} of {1, 2, . . . , m} such that |Pi | ≤ g for each 1 ≤ i ≤ k and ∑k i=1 | ⋃ r∈Pi Ar | is minimized. The restricted variant of Ring Grooming, r...
متن کاملSurvivable Traffic Grooming in WDM Optical Networks
Traffic grooming, in which low-rate circuits are multiplexed onto wavelengths, with the goal of minimizing the number of add-drop multiplexers (ADMs) and wavelengths has received much research attention from the optical networking community in recent years. While previous work has considered various traffic models and network architectures, protection requirements of the circuits have not been ...
متن کاملGrooming for two-period optical networks
Minimizing the number of add-drop multiplexers (ADMs) in a unidirectional SONET ring can be formulated as a graph decomposition problem. When traffic requirements are uniform and all-to-all, groomings that minimize the number of ADMs (equivalently, the drop cost) have been characterized for grooming ratio at most six. However, when two different traffic requirements are supported, these solutio...
متن کاملOptical Traffic Grooming Based on Network Availability
As thebandwidth request for traffic streams grows excessively, traffic grooming on wavelength-division multiplexing (WDM) mesh networks becomes more important. In general it efficiently grooms lowcapacity requests onto high-capacity lightpath. Thus network throughput and cost is improved. Also it affects the recent development of WDM passive optical network(PON) and the future fiber to the home...
متن کاملResearch Problems in Dynamic Traffic Grooming in Optical Networks
Traffic grooming has recently emerged as an important area in wide area wavelength-routed optical networks research. This research area addresses the problem of multiplexing lower rate traffic demands into wavelength channels of high bandwidth, so as to reduce network equipment cost by maximizing the optical (wavelength) routing and minimizing electronic routing. Recently, there have been effor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Network and Systems Management
سال: 2007
ISSN: 1064-7570,1573-7705
DOI: 10.1007/s10922-007-9074-9