Spectrum allocation in cognitive radio networks using chaotic biogeography‐based optimisation

Tegou, Thomas I.; Tsiflikiotis, Antonios; Vergados, Dimitrios D.; Siakavara, Katherine; Nikolaidis, S.; Goudos, Sotirios K.; Sarigiannidis, Panagiotis; Obaidat, Mohammad S.

doi:10.1049/iet-net.2017.0264

Cited by 11 publications

(4 citation statements)

References 63 publications

(114 reference statements)

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“…This routing approach causes unnecessary congestion in the network and at the nodes. Tegou et al (2018) designed a routing protocol called Ferry Enhanced PRoPHET to address congestion caused by packet replication. Nodes called ferries are used to control the replication of the packets.…”

Section: Routing For Delay Sensitive Real-time Critical Applicationsmentioning

confidence: 99%

Spectrum-Aware Transitive On-Demand Routing Protocol for Military Cognitive Radio Ad Hoc Networks

Phaswana,

Velempini

2023

S AFR COMP J

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The advancement of wireless technology is increasing the demand for scarce spectrum. Cognitive radio ad hoc networks (CRAHNs) were proposed as a solution to spectrum scarcity which is also deployed in combat. However, military cognitive radio ad-hoc networks (MCRAHNs) are subject to destruction and frequent link breakages. The challenge with MCRAHNs routing is the timing-out of packets. This paper proposes the spectrum-aware transitive multi-cast on-demand distance vector (SAT-MAODV), optimised for throughput and delay. The relay nodes are selected based on zonal data and mobility. This is achieved through handshaking and sharing of location data. The nodes are expected to store location data of nodes encountered, which is used in routing and in determining the movement of the node. The mobility of military nodes is organised and structured, which simplifies routing. The SAT-MAODV was evaluated in network simulator 2 and the results show that the scheme is effective. UsingSAT-MAODV instead of xWCETT reduced routing path and node relay delay by at least 65% and 13% respectively, and increased achievable throughput by 31%. It also improved the delivery ratio by 9% while reducing latency by 27% in comparison with MARSA.

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Section: Routing For Delay Sensitive Real-time Critical Applicationsmentioning

confidence: 99%

Spectrum-Aware Transitive On-Demand Routing Protocol for Military Cognitive Radio Ad Hoc Networks

Phaswana,

Velempini

2023

S AFR COMP J

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“…In [120], the authors have worked on expanding the utilization of the available spectrum by dynamically assigning channels to SUs, and this problem is considered a spectrum allocation problem. A method called Chaotic Biogeography-Based Optimization (CBBO) evolutionary algorithm is derived.…”

Section: Spectrum Allocationmentioning

confidence: 99%

Issues, Challenges, and Research Trends in Spectrum Management: A Comprehensive Overview and New Vision for Designing 6G Networks

et al. 2020

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With an extensive growth in user demand for high throughput, large capacity, and low latency, the ongoing deployment of Fifth-Generation (5G) systems is continuously exposing the inherent limitations of the system, as compared with its original premises. Such limitations are encouraging researchers worldwide to focus on next-generation 6G wireless systems, which are expected to address the constraints. To meet the above demands, future radio network architecture should be effectively designed to utilize its maximum radio spectrum capacity. It must simultaneously utilize various new techniques and technologies, such as Carrier Aggregation (CA), Cognitive Radio (CR), and small cell-based Heterogeneous Networks (HetNet), high-spectrum access (mmWave), and Massive Multiple-Input-Multiple-Output (M-MIMO), to achieve the desired results. However, the concurrent operations of these techniques in current 5G cellular networks create several spectrum management issues; thus, a comprehensive overview of these emerging technologies is presented in detail in this study. Then, the problems involved in the concurrent operations of various technologies for the spectrum management of the current 5G network are highlighted. The study aims to provide a detailed review of cooperative communication among all the techniques and potential problems associated with the spectrum management that has been addressed with the possible solutions proposed by the latest researches. Future research challenges are also discussed to highlight the necessary steps that can help achieve the desired objectives for designing 6G wireless networks.

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“…Moreover, the spectrum is assigned statically, which leads to spectrum inefficiency, as a major part of the spectrum remains mostly unused [13]- [16]. The unused spectrum thus created is termed as spectrum holes or white spaces [16]- [18].…”

Section: A Motivationmentioning

confidence: 99%

Spectrum efficiency in CRNs using hybrid dynamic channel reservation and enhanced dynamic spectrum access

Khan

Abbas

et al. 2020

Ad Hoc Networks

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Spectrum allocation in cognitive radio networks using chaotic biogeography‐based optimisation

Cited by 11 publications

References 63 publications

Spectrum-Aware Transitive On-Demand Routing Protocol for Military Cognitive Radio Ad Hoc Networks

Spectrum-Aware Transitive On-Demand Routing Protocol for Military Cognitive Radio Ad Hoc Networks

Issues, Challenges, and Research Trends in Spectrum Management: A Comprehensive Overview and New Vision for Designing 6G Networks

Spectrum efficiency in CRNs using hybrid dynamic channel reservation and enhanced dynamic spectrum access

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