Resource allocation in bandwidth-sharing networks is inherently complex: The distributed nature of resource allocation management prohibits global coordination for efficiency, i.e., aiming at full resource usage at all times. In addition, it is well recognized that resource efficiency may be conflicting with other critical performance measures such as flow delay. Without a notion of optimal (or...

Many of the busiest servers in the Internet consist of clusters of nodes that serve out data of heterogeneous types. At a given point in time, a user could be receiving multiple concurrent data streams, both real-time and nonreal-time, that originate at a single server node, multiple nodes in the same server cluster, or nodes in separate clusters. In this paper, we argue that significant perfor...

In this work we focus on the common case of streaming video to receivers whose last mile connections to the Internet are bandwith-limited and act as network bottlenecks. Users generally run multiple concurrent networking applications that compete for the scarce bandwidth resource. Standard TCP shares bottleneck link capacity according to connection round-trip time (RTT), and therefore may not p...

We consider the performance of a network like the In-ternet handling so-called elastic traac where the rate of ows adjusts to ll available bandwidth. Realized throughput depends both on the way bandwidth is shared and on the random nature of traac. We assume traac consists of point to point transfers of individual documents of nite size arriving according to a Poisson process. Notable results a...

Mesh networking has recently received considerable attention, largely as a mechanism for providing enhanced connectivity without the need to install additional expensive infrastructure. It relies on the fact that underutilised local area connectivity can be used to connect constrained devices to those that possess wide-area uplink capabilities. However, at present, proposals for uplink bandwidt...

In this paper, we propose the Neighbor-state Based Queuing (NBQ) for improving the performance of ows sharing link bandwidth under various transfer protocols. Each router with NBQ informs the next upstream router of its link status. According to the received status, NBQ dynamically sets the packet discard ratio of the non-adaptive ows. NBQ reduces the wasted nonadaptive ows and provides availab...

Packet-based optical access ring is becoming a promising solution in metropolitan networks. Its performance depends mainly on how optical resource sharing takes place among the different competing access nodes. In such a network fairness issues are likely to arise between upstream and downstream nodes competing to access a common data channel. This paper provides a new protocol called TCARD (Tr...