A Virtual DRC-Based Packet Scheduling Algorithm for cdma2000 1xEV-DO System

─ In most of broadband wireless access systems including the cdma2000 1xEV-DO system, a maximum possible data rate prescribed by the channel condition of a terminal is reflected into the priority metric. Particular examples include the proportional fairness and a modified largest weighted delay first (M-LWDF) packet scheduling algorithm. We note that all of these existing algorithms suffer from a so-called rate-length mismatch problem, which may seriously degrade the system throughput. In this paper, we devise a priority metric under a new concept of virtual DRC (Data Rate Control) to solve this particular problem. It has been shown that our virtual DRC-based packet scheduling algorithm always works better than or at least equivalently to the conventional one.