A new scheduling strategy of terminal system virtual link (VL) is put forward, which is based on the short-frame prior scheduling and integrated with weighted round robin (WRR).The new approach, ensured the priority of the important short-frame and balanced the delay upper bound of other different priority signals. Based on the theory of network calculus, the paper derived the delay upper bound...

This article studies the optimal prices and service quality grades that a queuing system---the ‘‘ firm”---provides to heterogeneous, utility-maximizing customers who measure quality by their experienced delay distributions. Results are threefold: First, delay cost curves are introduced that allow for a flexible description of a customer’s quality sensitivity. Second, a comprehensive executable ...

© 2012 ETRI Journal, Volume 34, Number 3, June 2012 This letter proposes a new distributed scheduling scheme combined with routing to support the quality of service of realtime applications in wireless mesh networks. Next, this letter drives average end-to-end delay of the proposed scheduling scheme that sequentially schedules the slots on a path. Finally, this letter simulates the time divisio...

The present work aims at the reduction of transmission delay at the level of AFDX ES (Avionics Full Duplex Switched Ethernet End-Systems). To this end, two approaches, namely Network Calculus and response time analysis (RTA), are employed in the computation of upper bound delay. To evaluate the delay regarding different scheduling policies, the arrival curve of the flow on output of ES is estab...

The objective of the study was to evaluate scheduling delay of dental exams in the city of São Paulo of patients suspected of having oral cancer. A cross-sectional study was performed in which telephone conversations simulated clinical situations that represented two types of patients: one presenting symptoms suggestive of oral cancer (CA), and another one suggesting the need for prostheses (PR...

In this paper, we consider a downlink packet scheduling algorithm in OFDMA systems for mixed traffics, such as real-time (RT) and non-real-time (NRT) services. The scheduling algorithm we proposed bases on the Utility Function and the Barrier Function, taking into account the Head-Of-Line (HOL) packet delay and Packet Drop Ratio (PDR) for video streaming. Simulation results show that our new al...

Providing end-to-end delay guarantees for delay sensitive applications is an important packet scheduling issue of routers. In this paper, to support end-to-end delay requirements, we propose a novel network scheduling scheme, called the Bulk Scheduling Scheme (BSS), built on top of existing schedulers of intermediate nodes without modifying transmission protocols on both sender and receiver sid...

| Current proposals for the provision of deter-ministic quality of service guarantees in integrated services networks require per-session management of traac owing in network switches, raising scalability questions for practical implementation of high speed packet switching in large scale networks. At the same time, the end-to-end delay bounds associated with current proposals can be overly con...