Resource Allocation in Virtualized CoMP-NOMA HetNets: Multi-Connectivity for Joint Transmission

In this work, we design a generalized joint transmission coordinated multi-point (JT-CoMP)-non-orthogonal multiple access (NOMA) model for virtualized multi-infrastructure network. model, all users benefit from transmissions of CoMP thanks to the multi-connectivity opportunity provided by wireless network virtualization (WNV) in networks. The NOMA protocol results an unlimited clustering (UNC) scheme, where order each cluster is maximum possible value. We show that UNC successful interference cancellation (SIC) complexity at users. regard, propose limited (LNC) SIC performed only subset formulate problem power allocation and user association LNC schemes. Then, one globally locally optimal solution are proposed based on mixed-integer monotonic optimization sequential programming, respectively. Numerical assessments reveal WNV improves sum-rate reduces up 35% 46% compared non-virtualized CoMP-NOMA system Therefore, algorithms suitable candidates implementation open intelligent radio