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Table 4 Validation of publications using different factors

From: Network slicing: a next generation 5G perspective

Author Goal Component units Techniques/methods Major features Limitation
[8] Efficient utilisation of limited network resources WLAN Deployment algorithms Improves utilisation of resources  
   LTE/5G access    
   Access node    
  Better acceptance ratio Transport node Complex network theory Increases service provider revenue  
   Core node    
   Edge cloud    
   Core cloud    
[9] Establish network slicing Sensors Virtualisation Provide architectural framework for 5G network slicing No concrete solution for the service layer
   Radio Multi-tenancy support   
   Server Integrated network programmability   
   5G Core SDN   
  Life cycle management Network function NFV   
[10] Support vertical industries in 5G networks 5G software-defined infrastructure Network slicing framework Layered approach to 5G network slicing Fails to address dynamic slice creation and management
   Virtual resource layer    
   Application and service layer    
   Slicing management and orchestration    
[11] Create network slices in wireless/wired 5G networks Mobile terminal Dynamic radio resource slicing scheme Identify bandwidth slicing ratio for creating network slices  
   Macro-cell base station    
   Small-cell base station    
   Wireless communication link    
   SDN-enabled virtualisation controller    
[12] Support V2X network RAN End-to-end network slicing Presents 5G slicing for future automotive market Slicing complexity in V2X
   Core network    
   End devices    
   Slice manager    
   Slice orchestrator    
   Virtualisation layer    
[13] Deploy network slices in 5G eNodeB controller Radio resource abstraction Proof of concept on RAN slicing  
   User equipment Fully programmable network slicing   
  Provide programmable RAN to enforce network slicing RAN    
  To abstract and share physical resource Core network Two-level MAC scheduler   
   Slice orchestrator    
[23] Study SDN architecture to create network slices NFV infrastructure SDN architecture Integration of SDN and VNF for network slicing  
   Infrastructure SDN controller    
  Study NFV architecture to create network slices Virtual network function (VNF)    
   Management and orchestration NFV architecture   
   Application controller    
   Network management system    
  Integrate SDN and VNF to meet network requirements Tenant SDN controller Integration of SDN and NVF   
[26] Optimise resource utilisation Slicing as binary sequence Genetic algorithm Determines slicing performance Failure to achieve global optimum of utility efficiency
   Genetic slicing strategy optimiser    
[14] Create RAN runtime slicing system Slice data RAN slicing Provides RAN runtime slicing system Does not address all the challenges highlighted
   RAN runtime services    
   RAN runtime application programmable interfaces    
[15] Lifecycle of network slices User devices Cloud-native approach Provides cloud-based approach for network slicing  
   IoT devices    
   Service orchestrator    
   Network orchestrator    
   Network slices    
[16] Identify challenges for the service-oriented 5G vision Service layer:
 Third party
Generic 5G architectural framework Presents a common framework for 5G network slicing Issues, e.g. virtualisation in RAN are unresolved
   Network function layer    
   Infrastructure layer:
 Core network
[17] Achieve better utilisation of resources User equipment Network slicing architecture Explains process for slice creation defined Slicing in RAN and user equipment is not addressed
   Network slice instances    
  Optimise network performance Subscriber repository Network slicing access selection   
  Shorten the slice creation time Common control plane function