- Добавил: literator
- Дата: 2-02-2022, 04:16
- Комментариев: 0
Название: Dynamic Resource Management in Service-Oriented Core Networks
Автор: Weihua Zhuang, Kaige Qu
Издательство: Springer
Серия: Wireless Networks
Год: 2021
Страниц: 182
Язык: английский
Формат: pdf (true), epub
Размер: 34.1 MB
The service-oriented fifth-generation (5G) and beyond core networks are featured by customized network services with differentiated quality-of-service (QoS) requirements, which can be provisioned through network slicing enabled by the software-defined networking (SDN) and network function virtualization (NFV) paradigms. Multiple network services are embedded in a common physical infrastructure, generating service-customized network slices (also referred to as virtual networks). Each network slice supports a composite service via virtual network function (VNF) chaining, with dedicated packet processing functionality at each VNF. For a network slice with a target traffic load, the end-to-end (E2E) service delivery is enabled by VNF placement at NFV nodes (e.g., data centers and commodity servers) and traffic routing among corresponding NFV nodes, with static resource allocations. When data traffic actually enters the network, the traffic load is dynamic and can deviate from the target value, potentially leading to QoS performance degradation and network congestion.
Автор: Weihua Zhuang, Kaige Qu
Издательство: Springer
Серия: Wireless Networks
Год: 2021
Страниц: 182
Язык: английский
Формат: pdf (true), epub
Размер: 34.1 MB
The service-oriented fifth-generation (5G) and beyond core networks are featured by customized network services with differentiated quality-of-service (QoS) requirements, which can be provisioned through network slicing enabled by the software-defined networking (SDN) and network function virtualization (NFV) paradigms. Multiple network services are embedded in a common physical infrastructure, generating service-customized network slices (also referred to as virtual networks). Each network slice supports a composite service via virtual network function (VNF) chaining, with dedicated packet processing functionality at each VNF. For a network slice with a target traffic load, the end-to-end (E2E) service delivery is enabled by VNF placement at NFV nodes (e.g., data centers and commodity servers) and traffic routing among corresponding NFV nodes, with static resource allocations. When data traffic actually enters the network, the traffic load is dynamic and can deviate from the target value, potentially leading to QoS performance degradation and network congestion.