Downlink resource management with adaptive modulation and dynamic scheduling for OFDM wireless communication systems

摘要

In this paper, a downlink resource management scheme with adaptive modulation and dynamic generalized processor sharing (DGPS) scheduling is proposed for orthogonal frequency-division multiplexing (OFDM) wireless communication systems. By making use of the frequency diversity among the subcarriers allocated to the same user and the inherent delay tolerance of the nonreal-time traffic, the proposed scheme can achieve maximum system throughput while guaranteeing the required symbol-error-rate (SER), providing fairness to all multimedia traffic, and satisfying the total transmission power constraint. Simulation results show that the proposed resource management scheme exhibits desirable performance.