In the future Internet, different applications such as Voice over IP (VoIP) and Video-on-Demand (VoD) arise with different demands on Quality of Service (QoS). Different kinds of service classes (e.g. gold, silver, bronze) should be supported in a network node. In the network node, packets are queued using a multiqueue system, where each queue corresponds to one service class. The customers of ...

This paper presents a method to allocate the transmission network costs to users based on nodal pricing approach by regulating the nodal prices from the marginal point to the new point. Transmission nodal pricing based on marginal prices is not able to produce enough revenue to recover the total transmission network costs. However, according to the previous studies in this context, this met...

This study analysis the effects of internal control system on Tax revenue audit performance in Ministry of Revenue South and southwestern districts under explanatory research design. The study employed primary data sources and analyzed it using a multiple regression analysis on SATA 14 software. The regression analysis results exhibited that control activities, control environment and informati...

Clusters of workstations (COWs) are becoming increasingly popular as a cost-effective alternative to parallel computers. In previous papers we presented the in-transit buffer mechanism (ITB) to improve network performance, applying it to COWs with irregular topology and source routing. This mechanism considerably improves the performance of this kind of networks when compared to current source ...

With the rapid development of WLAN, more and more schools and businesses have begun to provide the WLAN for users. However, WLAN is considerably more susceptible to MitM (man-in-the-middle) attack. To overcome it, we propose a dynamic password technology named Two-way Dynamic Authentication Technology (TDAT). It uses two-factor during the initial authentication, and uses a two-way hash chain du...

How do marketing investments (such as price promotions, new product introductions and advertising) contribute to a brand’s revenue premium? Moreover, how do brand and category characteristics moderate the impact of the marketing investments on brand revenue premiums? In this paper, I address these questions with a large-scale econometric analysis of marketing investments and associated brand re...

Broadband is the common form of telecommunication used for Intensive Care Unit (ICU) telemedicine. However, in rural areas, bandwidth demand can easily outstrip the revenue realizable that is needed to pay for the network infrastructure investment so lower bandwidth is normal. A consequence of restricted bandwidth on access pipes is service contention at the customer site. To address these chal...