Results 41 to 50 of about 3,411 (314)

Routing, Modulation Format, Spatial Lane, and Spectrum Block Assignment in Static Spatial Channel Networks

open access: yesApplied Sciences, 2023
Spatial channel networks (SCNs) and related key technologies have been proposed to increase the capacity and flexibility of optical networks. We define the network resource allocation problem in a static SCN as the routing, modulation format (MF ...
Xin Yang, Yang Zhou, Qiang Sun
doaj   +1 more source

Design, analysis and evaluation of routing and channel assignment algorithms for wireless mesh networks [PDF]

open access: yes, 2011
In this thesis we describe the efforts we made for designing, developing and analyzing new routing and channel assignment algorithms for wireless mesh networks.
Di Stasi, Giovanni
core   +1 more source

Dynamic Routing and Spectrum Assignment Based on the Consecutive Sub-Channels in Flexible-Grid Optical Networks

open access: yesIEEE Access, 2022
Variable bandwidth channels can be created in Flexible Grid Optical Networks using Optical Orthogonal Frequency Division Multiplexing (O-OFDM). This allows more efficient spectrum use by allocating integral multiple of basic bandwidth slots (sub-channels)
Varsha Lohani   +2 more
doaj   +1 more source

Congestion aware ant colony optimisation algorithm for routing and spectrum assignment in flexi-grid optical burst switching networks

open access: yesPhotonic network communications, 2023
This paper presents an improved distributed ant colony optimisation algorithm for routing and spectrum assignment (RSA) on optical burst switched (OBS), flexible spectrum networks, with the spectrum continuity constraint imposed.
Joshua Oladipo   +2 more
semanticscholar   +1 more source

Energy- and Cognitive-Radio-Aware Routing in Cognitive Radio Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2012
Cognitive radio sensor networks (CRSNs) are the next generation wireless sensor networks (WSNs) that mitigate overcrowded unlicensed spectrum bands by opportunistically using temporally unoccupied unlicensed and licensed spectrum bands. In this paper, we
Christian H. W. Oey   +2 more
doaj   +1 more source

Multi-Band Elastic Optical Networks: Inter-Channel Stimulated Raman Scattering-Aware Routing, Modulation Level and Spectrum Assignment

open access: yesJournal of Lightwave Technology, 2021
Recently, multi-band elastic optical networks (MB-EONs) have been introduced to increase the transmission capacity of optical networks by expanding the transmission frequency range beyond the conventional C-band (e.g., O-, E-, S-, and L-band).
Mahdieh Mehrabi, H. Beyranvand, M. Emadi
semanticscholar   +1 more source

Optimal Channel Width Adaptation, Logical Topology Design, and Routing in Wireless Mesh Networks

open access: yesEURASIP 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

Coordinating Multiple Light-Trails in Multicast Elastic Optical Networks With Adaptive Modulation

open access: yesIEEE 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

A Bandwidth-Balanced RMLSA Solution for Static Elastic Optical Network: A Two Stages Approach

open access: yesIEEE 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

Routing and Spectrum Assignment for Dual Failure Path Protected Elastic Optical Networks

open access: yesIEEE 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

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