Resource allocation mechanisms require that routers execute a scheduling discipline that manages buffering of packets during waiting time. Various scheduling algorithms may be implemented to govern packet transmission and control packet loss. Volume of UDP traffic is dramatically increasing due to the widely used P2P and steaming technologies. Unlike TCP, UDP protocol does not have mechanism to...

A Wireless Sensor Network (WSN) is a collection of petite sensor terminals, capable of sensing and communication. Here topology is dynamic Node developments result in dynamic topology and cause link failures in an Ad-hoc. Here focusing on the using of packet scheduling technique for AODV (Ad Hoc on Demand Distance Vector) routing protocol by weight hop based scheduling in this paper. The transi...

Network coding has been shown to be very effective for collaborative media streaming applications. A pivotal issue in media streaming with Network Coding (NC) lies in the packet scheduling policy at the network nodes, which affects the perceived media quality. In this paper we address the problem of finding the packet scheduling policy that maximizes the number of media segments recovered in th...

Adaptive packet scheduling for wireless data access systems, including channel state information based algorithms, is a quite well established topic. We develop here an original framework to define such an algorithm in a reconfigurable context, i.e. with the ability to exploit heterogeneous communication environments. The focus is to define platform independent algorithms that can be adapted by...

A hybrid electronic/optical packet switch consists of electronically buffered line-cards interconnected by an optical switch fabric. It provides a scalable switch architecture for next generation high-speed routers. Due to the non-negligible switch reconfiguration overhead, many packet scheduling algorithms are invented to ensure performance guaranteed switching (i.e. 100% throughput with bound...

In this paper, we consider the problem of scheduling real time services over time-varying wireless links in broadband wireless networks where an Adaptive Modulation and Coding (AMC) scheme is applied in the physical layer in order to decrease the packet error rate. It is well known that a properly chosen modulation and coding scheme can increase error robustness in the physical layer. However, ...

Bennett and Zhang [4] demonstrated the existence of large discrepancies between the service provided by the packet-based WFQ system and the fluid GPS system. As demonstrated in [4] these discrepancies can cause cycles of bursting. Such inaccuracy and bursty behavior significantly and adversely affect both best-effort and real-time traffics. The WFQ algorithm [4] overcomes this difficulty but it...

Bennett and Zhang [3] demonstrated the existence of large discrepancies between the service provided by the packet-based WFQ system and the fluid GPS system. As demonstrated in [3] these discrepancies can cause cycles of bursting. Such inaccuracy and bursty behavior significantly and adversely affect both best-effort and real-time traffics. The WFQ algorithm [3] overcomes this difficulty but it...

Given the strict Quality of Service (QoS) requirements of video streaming, this paper proposes a novel solution for simultaneous streaming of multiple video sessions over a mobile cellular system. The proposed solution combines a buffer management strategy with a packet scheduling algorithm. The buffer management strategy selectively discards packets of a user from base station buffer whereas t...