Flexible scheduling for Real-Time services in High-Speed Packet Access cellular networks

Abstract

This paper presents the HYbrid Channel-Aware and Real-Time scheduler (HY-CART) for UMTS High-Speed Packet Access networks. The latter works for both downlink and uplink scheduling, with slightly different embodiments due to the different technology constraints. Its basic principle is to select users based on their channel conditions when the deadlines are far ahead: as the deadlines approach, they become progressively more important. Furthermore, resources for scheduled users are allocated sparingly, i.e. enough to serve packets whose deadline is actually near, so as to make room for a possibly larger number of simultaneous users, and keeping into account the user channel state. Simulative evaluation shows that HY-CART performs better than the previous work, allowing more users to be served with the same resources.

OptiMOS: Optimal MOS-based scheduling of downlink voice flows in point-to-multipoint access networks

“…Third, it can work in conjunction with any deadline-based scheduler, e.g. the well-known Earliest Due Date (EDD), or -for wireless networks having user-and time-978-1-4244-7265-9/10/$26.00 © 2010 IEEE dependent channel conditions -with schedulers that also take into account the channel state (e.g., [10]). Fourth, it is not tailored to a specific technology.…”

Congestion-Adaptive and Deadline-Aware Scheduling for Connected Car Services over Mobile Networks

“…Copyright © 2020 The Institute of Electronics, Information and Communication Engineers is an EDF-based scheduler that performs priority control considering not only the remaining time to the deadline but also the remaining data amount of each data stream [18]. Andreozzi et al proposed a method considering the deadline and radio quality [19]. Another scheduler, the channeldependent earliest deadline due (CD-EDD) [20], considers wireless channel quality, but does not consider chunk size.…”