With the introduction of Advanced Antenna Systems (AAS) in cellular communication technologies, such as LTE and NR, the same resource can be allocated simultaneously to multiple users via spatial multiplexing. However, this raises new challenges to resource allocation strategy to decide opportunistic co-scheduling on a given resource to increase the system capacity without adversely impacting the user fairness. In addition, the effects of transmit power sharing and inter-user interference on co-scheduling need to be considered in the allocation decision. In this paper, a generic framework for resource allocation considering all these aspects of Multi-User Multi-Input Multi Output (MU-MIMO) in cellular Orthogonal Frequency Division Multiple Access (OFDMA) systems is presented and a scheduling algorithm for optimum resource allocation is provided. The performance of the proposed algorithm is evaluated for a two dimensional AAS using SCM-5G channel model.
Optimum Resource Allocation in MU-MIMO OFDMA Wireless Systems
01.05.2020
175447 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch