MIMO-OFDMA Resource Allocation Scheme with Proportional Fairness Constraints in OFDMA Systems

In OFDMA systems, to satisfy proportional fairness constraints, we propose a resource allocation scheme based on MIMO-OFDMA technology. This approach effectively utilizes system resources and enhances overall system performance. Specifically, by employing MIMO technology, we enable simultaneous transmission of multiple data streams on each subcarrier, thereby increasing the system's transmission capacity. The implementation typically involves optimization algorithms that allocate subcarriers and power distribution while maintaining proportional fairness among users. Key computational components include solving convex optimization problems using Lagrangian multipliers or heuristic approaches like greedy algorithms for real-time resource assignment. Additionally, we incorporate proportional fairness requirements to ensure equitable resource distribution for all users. This resource allocation scheme achieves superior system performance and delivers enhanced user experience through balanced throughput optimization and quality of service maintenance.