Title of Dissertation: SCHEDULING IN PACKET SWITCHED CELLULAR WIRELESS SYSTEMS Roshni Srinivasan, Doctor of Philosophy, 2004 Dissertation directed by: Professor John S. Baras Department of Electrical and Computer Engineering In cellular wireless networks where users have independent fading channels, throughput for delay tolerant applications has been greatly increased on the downlink by using o...

Task scheduling policies can be generally classiied as eager scheduling and lazy scheduling. The former attempts to schedule the tasks whenever there are free processors available, while the latter delays the scheduling of some tasks so as to accommodate more appropriate tasks. In this paper we propose a hybrid policy, called eager scheduling with lazy retry (ESLR). This policy tries to schedul...

When weather or congestion impacts the National Airspace System, multiple different Traffic Management Initiatives can be implemented, sometimes with unintended consequences. One particular perceived inequity that is commonly identified is in the interaction between Ground Delay Programs (GDPs) and time based scheduling of internal departures by the Traffic Management Advisor (TMA) (now operati...

In high-speed switches the Input Queued(IQ) architecture is very popular due to its low memory-bandwidth requirement compared to the Output Queued (OQ) switch architecture which is extremely desirable in terms of performance but requires very high memory-bandwidth. In the past decade researchers and industry people have been trying hard to £nd good scheduling algorithm for IQ switches. The two ...

Class Based Queueing (CBQ) is a link-sharing and resource management mechanism for packet networks. We have ported the CBQ implementation on FreeBSD, also known as Alternate Queueing (ALTQ), to the Linux platform. This paper investigates the performance of CBQ in terms of latency, bandwidth guarantee and delay. CBQ is found to be able to preserve bandwidth allocated to the classes. However, it ...

This paper investigates a cross layer scheduling scheme for OFDMA wireless system with heterogeneous delay requirements. Unlike most existing cross layer designs which take a decoupling approach, our design considers both queueing theory and information theory in modeling the system dynamics. The cross layer design is formulated as an optimization of total system throughput, subject to individu...

In this paper, we analyze the capacity and delay in mobile ad hoc networks (MANETs) considering the correlation of node mobility (correlated mobility). Previous works on correlated mobility investigated the maximum capacity with the corresponding delay in several sub-case, the problem of optimal capacity under various delay constraints (the optimal capacitydelay tradeoff) still remains open. To...

BACKGROUND Only 36% of sick Australians report being able to get an appointment on the day they need it, which is poor by international standards. This delay in care may impact on practice team morale, practice profitability and patient care. The Australian Primary Care Collaboratives Program aims to find better ways to provide primary healthcare services to patients through shared learning, pe...

Adaptive scheduling is becoming an increasingly important issue in wireless video communications, which are widely used in the industry and academic organizations. However, existing scheduling schemes for real-time video services in wireless networks generally do not take into account the relationship between the transmission delay and video distortion. In this paper, we develop and evaluate a ...