User based vs. frequency based resource occupation ordering in packet scheduling in OFDMA systems

In this paper, we compare the performance attained by several scheduling policies when the resource allocation is performed in a per-user or in a per-frequency resource ordering. We test the capability of both approaches to deal with the quality of service (QoS) provisioning in a multi-service scenario in a mobile OFDMA network. We probe that the comparative performance of these two approaches depends on the actual scheduling policy, under a certain power and subcarrier allocation (PSA) algorithm that efficiently controls the inter-cell interference (ICI).