Results 41 to 50 of about 1,499 (298)
Applied 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
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Energy- and Cognitive-Radio-Aware Routing in Cognitive Radio Sensor Networks
International 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
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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
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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
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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
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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
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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
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Solving the Static Resource-Allocation Problem in SDM-EONs via a Node-Type ILP Model
Sensors, 2022 Space division multiplexing elastic optical networks (SDM-EONs) are one of the most promising network architectures that satisfy the rapidly growing traffic of the internet. However, different from traditional wavelength division multiplexing (WDM)-based
Jiading Wang +4 more
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On the Complexity of Routing and Spectrum Assignment in Flexible-Grid Ring Networks [Invited]
Journal of Optical Communications and Networking, 2014 The adoption of a flexible grid will benefit the network design and control plane of future optical networks by providing increased adaptability of spectral resources to heterogeneous network conditions. Unfortunately, this flexibility is gained at the cost of significant additional complexity in the network design and control.
Massimo Tornatore +5 more
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International Journal of Optics, 2019 In this paper, we experimentally present a novel, all-optical spectral efficient vertical-cavity surface-emitting laser- (VCSEL-) based technique for routing and spectrum assignment in optical networks.
P. P. Dlamini +4 more
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