With the increase of wireless devices and new applications,highly dense small cell base stations(SBS)have become the main means to overcome the speed bottleneck of the radio access network(RAN).However,the highly-dens...With the increase of wireless devices and new applications,highly dense small cell base stations(SBS)have become the main means to overcome the speed bottleneck of the radio access network(RAN).However,the highly-dense deployment of SBSs greatly increases the cost of network operation and maintenance.In this paper,a base station sleep strategy combining traffic aware and high-low frequency resource allocation is proposed.To reduce the service level agreement(SLA)default caused by base station sleep,Long Short-Term Memory(LSTM)algorithm is introduced to predict the traffic flow,based on the predict result,the SBSs sleep and frequency resource allocation are introduced to increase the energy efficiency of the network.Moreover,this paper improves the decision-making efficiency by introducing Kuhn Munkres algorithm(KM)and genetic algorithm(GA).Simulation results show that the proposed strategy can greatly reduce the energy consumption of small cells and the occurrence of SLA default rate.展开更多
Innovations in new applications and technological advancements are driving the evolution of network architectures towards flexibility and automation.Network Function Virtualization(NFV)deploys Network Functions(NFs)as...Innovations in new applications and technological advancements are driving the evolution of network architectures towards flexibility and automation.Network Function Virtualization(NFV)deploys Network Functions(NFs)as software applications onto cloud infrastructures,redefining the development,deployment,and operation models of communication networks,thereby meeting the evolution demands of networks.However,after more than a decade of development,the progress of network service operators in NFV has not met expectations,partly because some key technologies remain unresolved.To accelerate the large-scale commercial use of NFV,this paper focuses on reviewing relevant literature from the past five years.Based on practical applications and insights into future trends,we explore the three directions of network virtualization,network cloudification,and network service orientation.We investigate the most representative technologies and the latest research progress in these fields,analyze the current problems and challenges,and provide corresponding suggestions on how to deal with them.Finally,we forecast future directions of technological development.展开更多
文摘With the increase of wireless devices and new applications,highly dense small cell base stations(SBS)have become the main means to overcome the speed bottleneck of the radio access network(RAN).However,the highly-dense deployment of SBSs greatly increases the cost of network operation and maintenance.In this paper,a base station sleep strategy combining traffic aware and high-low frequency resource allocation is proposed.To reduce the service level agreement(SLA)default caused by base station sleep,Long Short-Term Memory(LSTM)algorithm is introduced to predict the traffic flow,based on the predict result,the SBSs sleep and frequency resource allocation are introduced to increase the energy efficiency of the network.Moreover,this paper improves the decision-making efficiency by introducing Kuhn Munkres algorithm(KM)and genetic algorithm(GA).Simulation results show that the proposed strategy can greatly reduce the energy consumption of small cells and the occurrence of SLA default rate.
文摘Innovations in new applications and technological advancements are driving the evolution of network architectures towards flexibility and automation.Network Function Virtualization(NFV)deploys Network Functions(NFs)as software applications onto cloud infrastructures,redefining the development,deployment,and operation models of communication networks,thereby meeting the evolution demands of networks.However,after more than a decade of development,the progress of network service operators in NFV has not met expectations,partly because some key technologies remain unresolved.To accelerate the large-scale commercial use of NFV,this paper focuses on reviewing relevant literature from the past five years.Based on practical applications and insights into future trends,we explore the three directions of network virtualization,network cloudification,and network service orientation.We investigate the most representative technologies and the latest research progress in these fields,analyze the current problems and challenges,and provide corresponding suggestions on how to deal with them.Finally,we forecast future directions of technological development.
