Vasil Hnatyshin

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The national importance of creating "content reflecting cutting edge developments in STEM fields" has been recognized the National Science Foundation. The National Research Council has also noted that creating engaging laboratory and classroom experiences is a challenge to effective undergraduate education in STEM disciplines. In this paper we present our(More)
In the world of mobile wireless communication, it has become more and more important to establish networks that are not only capable of delivering information across vast distances but can also perform this task efficiently. Many routing protocols for mobile ad hoc networks (MANETs) rely on additional information such as geographical locations obtained via(More)
The current best effort approach to quality of service in the Internet can no longer satisfy a diverse variety of customer service requirements, and that is why there is a need for alternative strategies. What the Internet needs is a mechanism for providing a fine-grained perflow quality of service that does not cause network congestion and keeps overall(More)
The problem of fair distribution of available bandwidth among traffic flows or aggregates remains an essential issue in computer networks. This paper introduces a novel approach, called the Exact Bandwidth Distribution Scheme (X-BDS), for dynamic and fair distribution of available bandwidth among individual flows. In this approach, the edge routers keep(More)
Despite numerous efforts, the problem of providing per-flow Quality of Service in a scalable manner still remains an active area of research. This paper introduces a scalable architecture for support of per-flow bandwidth guarantees, called the Bandwidth Distribution Scheme (BDS). The BDS maintains aggregate flow information in the network core and(More)
Ad-Hoc On-Demand Distance Vector (AODV) is a routing protocol for mobile ad hoc networks (MANET). AODV floods the network with control messages to discover a route to the destination, which often results in a large number of control packets traveling through the network. This paper introduces the design and implementation of GeoAODV routing protocol for(More)
Location-aided routing (LAR) is a mechanism which attempts to reduce the control message overhead of Ad-hoc ondemand distance vector (AODV) routing protocol by flooding only the portion of the network that is likely to contain the route to destination. LAR takes advantage of Global Positioning System (GPS) coordinates to identify a possible location of the(More)
Recently a large number of approaches to service differentiation have appeared in the literature. Most of these approaches are based on the Differentiated Services (DiffServ) Architecture proposed by IETF and they have been evaluated in a number of independent studies. It is widely acknowledged that the Differentiated Services approach provides proper(More)