Most of the computation and memory usage of the post-compression rate-distortion (PCRD) optimization scheme in JPEG2000 are redundant. In this paper, we propose a novel rate control scheme using priority scanning (PS) to address the problem. By encoding the truncation points in a different order based on the priority information, the proposed method can totally remove the redundancy while keepi...

Congestion in Wireless Sensor Networks (WSN) get worse when there are multiple and random flows of data in which some have superior significance over the others requiring fidelity in terms of packet delivery, QoS, energy efficiency and throughput. In node-level, congestion leads to impairment of packets that obviously reduces the QoS. In this paper, we present a Cluster based congestion control...

This research utilizes a laboratory experiment to evaluate the effectiveness of alternative public policies targeted at increasing the rate of deceased donor organ donation. The experiment includes treatments across different default choices and organ allocation rules inspired by the donor registration systems applied in different countries. Our results indicate that the opt-out with priority r...

BACKGROUND Priority setting, also known as rationing or resource allocation, occurs at all levels of every health care system. Daniels and Sabin have proposed a framework for priority setting in health care institutions called 'accountability for reasonableness', which links priority setting to theories of democratic deliberation. Fairness is a key goal of priority setting. According to 'accoun...

Multimedia streaming is difficult on the Internet, especially for video due to the large frame size and inter-frame dependencies resulted from high compression rates. This paper shows that router support for priority-based queue management could significantly improve performance of video streaming. We extend Rate-Based RED (Rb-RED) to Rate-Based RIO (Rb-RIO) which support three priority classes...

In vehicular delay-tolerant networks, buffer management systems are developed to improve overall performance. However, these memory cannot simultaneously reduce network overload, high priority message delivery time limit, and all class rates. As a result, quality of service is not guaranteed. this paper, we propose drop policy based on the constitution two queues according weight, position node...

Provisioning of quality of service (QoS) is a key issue in visible light communication (VLC) system as well as in other wireless communication systems. Due to the fact that QoS requirements are not as strict for all traffic types, more calls of higher priority traffic classes can be accommodated by blocking some more calls of lower priority traffic classes. Diverse types of high data rate traff...

Rate monotonic traffic scheduling algorithm had been shown [1] to be the optimal static priority assignment scheme. The system model studied in [1] can be considered (although not realistic) as a preemptive multiplexer which accepts constant bit rate connections that generate packets periodically. The multiplexer adopts a service discipline such that a lower priority packet can be preempted at ...