Wireless access based on slotted Aloha with selfish users may result in very inefficient use of the system resources. To impose cooperation and fairness in such systems, we propose an optimal pricing strategy, based on which the service provider can regulate the overall network behavior. As the users’ utility incorporates the price paid for using the spectrum, by striving to improve their own p...

In this paper, we present a low latency media access control scheme which we call LLMAC (Low Latency MAC) for event-driven wireless sensor networks (WSN). In this kind of WSN, sensors do not regularly send data to the sink. They send a burst data only when there is an event in the monitoring area. It takes time for this burst data to arrive to the sink. Normally, these events are critical and w...

ATM Forum Document Number: ATM_Forum/99-0045 ************************************************************************ Title: Throughput Fairness Index: An Explanation ************************************************************************ Abstract: The performance testing document uses a particular function to quantify fairness. This contribution explains the reasons for the selection of the p...

Computational Grid allows customers to submit tasks to service providers. To maintain the availability, fairness and performance, it is critical to protect Computational Grid systems from malicious participants. Current solutions to this problem assume that the system would contain either malicious consumers only or malicious service provider only. However, in the real world, both consumers and...

In current wireless LANs multiple kinds of losses occur (i.e., channel errors, collisions, interference). In this paper we examine the extent to which loss differentiation based physical layer transmission bit–rate and contention window adaptation aids in improving network performance. We show that loss differentiation can have a positive impact on performance, especially in low contention scen...

BACKGROUND AND PURPOSE Dysphagia screening (DS) before oral intake in patients with acute stroke is a hospital-level performance measure. We report outcomes of an initiative to improve compliance to this quality measure. METHODS The design was a pre- versus postintervention comparison study. The Intervention was an electronic medical record-based clinical DS system embedded within stroke admi...

BACKGROUND Performance is a multi-dimensional and dynamic concept. During the past 2 decades, considerable studies were performed in developing the hospital performance concept. To know literature key concepts on hospital performance, the knowledge visualization based on co-word analysis and social network analysis has been used. METHODS Documents were identified through "PubMed" searching fr...

In 2003, the Agency for Healthcare Research and Quality (AHRQ) released 20 patient safety indicators (PSI) to facilitate measurement of adverse events. Though intended for internal quality measurement and improvement , several PSIs are now being widely publicly reported , including on the Centers for Medicare & Medicaid's (CMS's) Hospital Compare website. Additionally , on October 1, 2014 (fisc...