Results 31 to 40 of about 28,993 (284)
Split spectrum-enabled route and spectrum assignment in elastic optical networks
Optical Switching and Networking, 2014 The Split Spectrum Approach (SSA) in elastic optical networks is based on splitting a demand into smaller sub-signals when a blocking situation arises, either due to the lack of spectral resources or transmission reach reasons. In this paper, we propose a mechanism based on a Mixed Integer Linear Programming (MILP) formulation for efficiently serving ...
Pagès Cruz, Albert +3 more
openaire +3 more sources
Optimal Channel Width Adaptation, Logical Topology Design, and Routing in Wireless Mesh Networks
EURASIP Journal on Wireless Communications and Networking, 2009 Radio frequency spectrum is a finite and scarce resource. How to efficiently use the spectrum resource is one of the fundamental issues for multi-radio multi-channel wireless mesh networks.
Li Li, Chunyuan Zhang
doaj +2 more sources
Imprecise Markov Models for Scalable and Robust Performance Evaluation of Flexi-Grid Spectrum Allocation Policies [PDF]
, 2018 The possibility of flexibly assigning spectrum resources with channels of different sizes greatly improves the spectral efficiency of optical networks, but can also lead to unwanted spectrum fragmentation.We study this problem in a scenario where traffic
De Bock, Jasper +3 more
core +3 more sources
Coordinating Multiple Light-Trails in Multicast Elastic Optical Networks With Adaptive Modulation
IEEE Photonics Journal, 2023 Optical multicasting has been considered resource efficient for multicast services. Light-tree and light-trail are two technologies that support optical multicasting while the former requires many splitters and thus experiences significant power loss. In
Anliang Cai +3 more
doaj +1 more source
OpticsTo meet the increasing demands for data, elastic optical networks (EONs) require highly efficient resource management. While classical Routing and Spectrum Assignment (RSA) algorithms establish a path and allocate spectrum, advanced versions such as ...
Renan Carvalho +4 more
doaj +1 more source
A Bandwidth-Balanced RMLSA Solution for Static Elastic Optical Network: A Two Stages Approach
IEEE Access, 2022 This paper addresses one of the main tasks in transparent static elastic optical networks (EONs), known as the routing, modulation level, and spectrum assignment (RMLSA) problem.
Jorge Bermudez +2 more
doaj +1 more source
, 2015 In this paper, we consider the joint opportunistic routing and channel assignment problem in multi-channel multi-radio (MCMR) cognitive radio networks (CRNs) for improving aggregate throughput of the secondary users.
Li, Li +4 more
core +1 more source
Routing and Spectrum Assignment for Dual Failure Path Protected Elastic Optical Networks
IEEE Access, 2016 We present the design of a dual failure protected elastic optical network (EON) for different sharing capabilities of protection lightpaths. Routing and spectrum assignment (RSA) is considered for such a network so as to minimize the maximum number of ...
Hong Guo +2 more
doaj +1 more source
Minimum- and Maximum-Entropy Routing and Spectrum Assignment for Flexgrid Elastic Optical Networking [Invited] [PDF]
, 2015 We present two complementary routing and spectrum assignment (RSA) algorithms that use a quantitative fragmentation metric using the concept of Shannon entropy in flexgrid networks.
Andrew Lord +5 more
core +1 more source
, 2007 We develop distributed algorithms to allocate resources in multi-hop wireless networks with the aim of minimizing total cost. In order to observe the fundamental duplexing constraint that co-located transmitters and receivers cannot operate ...
Xi, Yufang, Yeh, Edmund M.
core +1 more source