Quality of Service (QoS) Aware Adaptive Radio Resource Management Algorithm for MIMO-OFDMA System*

A real time QoS aware adaptive radio resource management algorithm for downlink of multi-cell and multi user MIMO-OFDMA system. This purposed scheduling algorithm takes account queue status, transmission rates, channel state information and priority of the user for subcarrier, power and bit allocation in MU-MIMO-OFDMA system. Subcarrier selection is based on the priority of the user and eigenvalue product criterion and “water-filling algorithm” is adapted for bit loading and power allocation problem. Simulation results show that this algorithm can not only increase the data rate of the system, but also QoS of the user. This algorithm can also maintain required QoS for each user.