Joint MAC-PHY Layer Resource Allocation Algorithm Based on Triangle Module Operator for Multi-Service OFDM System

The algorithms of the PHY layer may lead to the data loss and the waste of resource for multi-service OFDM system. In order to resole this problem, a joint MAC-PHY layer resource allocation algorithm is proposed in this paper. The service model of multi-service OFDM system is analyzed briefly first. After establishing the membership functions of time delay urgency and rate fairness, the scheduling algorithm of the MAC layer based on triangle module operator is proposed. Finally the allocation algorithm of the PHY layer is also designed. The simulation results of packet loss ratio, average waiting delay and rate show that the proposed algorithm can meet the requirement for time delay and rate fairness, raise the spectrum efficiency and improve the quality of service.