An Overview of Resource Allocation Algorithms for OFDM Systems

In wireless communication system, the available radio resource is limited and scarce, and hence, how to use the limited resource to satisfy various service quality requirements and realize the fairness between different users is a key problem. This paper gives an overview for the existing resource allocation algorithms in OFDM systems from the aspects of single-user and multi-user, respectively. Moreover, existing methods to solve the resource allocation problem are classified, and future development is analyzed as well.