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— One of the key issues in design of an orthogonal frequency division multiple access (OFDMA) based system is subcarrier and power allocation. Assuming knowledge of the instantaneous channel gains for all users, we propose a resource allocation scheme for an OFDMA based system to simultaneously provide two services, Guaranteed Performance (GP) and Best(More)
incorporates COMIC, DCFí µí±í µí±œí µí±ší µí±–í µí±, is formulated for the performance analysis. The performance results show that DCFí µí±í µí±œí µí±ší µí±–í µí± outperforms the conventional DCF in both throughput and average packet delay due to the significant reduction in packet collisions.