Preemptive and delay-based policies are derived here to provide preferential treatment to emergency users as motivated by the need to respond to natural or man-made disasters. These are applied in circuit switched networks or IP-based networks in conjunction with reservation mechanisms at single links or routers where congestion occurs. A unique optimization formulation is provided where polici...

This Article assesses three major preemption decisions from the 2008–2009 Term—Altria Group, Inc. v. Good, Wyeth v. Levine, and Cuomo v. Clearing House Ass’n—for their implications about the role of the states in national administrative governance. The Article argues the decisions are centrally concerned with using state law and preemption analysis to improve federal administration and police a...

State and local legal innovations to address chronic conditions are an ongoing source of public health improvements. For decades, some of the most ingenious law and policy ideas to address the underlying causes of chronic conditions and their contributing factors have emerged from state or local public sector grassroots initiatives in diverse areas, including tobacco use, safe housing and trans...

The importance of providing bandwidth guarantees in packet backbone networks is increasing with the emergence of virtual private networks and mobile networks, where bandwidth requirements of aggregate packet flows with diverse characteristics have to be supported. Both in VPNs and in mobile networks traffic will be prioritized to support preemption of less important traffic. The Multiprotocol L...

In this paper, we address for safety critical applications the problem of multiprocessor real-time scheduling while taking into account the exact preemption cost. In the framework of multiprocessor real-time partitioned scheduling, we propose a greedy heuristic which balances the load of the tasks on all the processors and minimizes the response time of the applications. That heuristic uses a s...

This paper presents a channel preemption model for vertical handoff in heterogeneous WLAN (wireless LAN) embedded cellular networks. The novelty of this paper is right in that a newly initiated mobile node (MN) outside the WLAN coverage can preempt the channels occupied by an MN inside the WLAN coverage when the cellular channels are completely used up. The channel preempted MN is forced to swi...

Preemption threshold scheduling (PTS) enables designing scalable real-time systems. PTS not only decreases the run-time overhead of the system, but can also be used to decreases the number of threads and the memory requirements of the system. In this paper, we combine preemption threshold scheduling with dynamic voltage scaling to enable energy efficient scheduling in real time systems. We cons...