Inspired by the Statistical Physics of complex networks, wireless multihop ad hoc communication networks are considered in abstracted form. Since such engineered networks are able to modify their structure via topology control, we search for optimized network structures, which maximize the end-to-end throughput performance. A modified version of betweenness centrality is introduced and shown to...

The constant increase in link speeds and number of threats poses challenges to network intrusion detection systems (NIDS), which must cope with higher traffic throughput and perform even more complex per-packet processing. In this paper, we present an intrusion detection system based on the Snort open-source NIDS that exploits the underutilized computational power of modern graphics cards to of...

Carrier-grade Ethernet has evolved greatly since its creation. Its simplicity, scalability, and inexpensiveness have made it an attractive technology for enterprises to interconnect their metro area networks (MANs). Today, Carrier Ethernet can span over 10,000 km. Ethernet Services were created to enable companies to distribute their own services through the carriergrade network. All the data t...

Data communications on domestic low-voltage powerlines benefit from a ubiquitous and already existent infrastructure. Nevertheless, high-speed communications on this environment faces obstacles such as attenuation and noise. The HomePlug standard defines MACand PHY-layer protocols for home electrical wiring networks. Its MAC protocol has introduced the deferral counter (DC) mechanism, which ada...

Network throughput increase is usually associated with replacement of communication links and appropriate network devices. However it is necessary to bear in mind that effective and less intrusive increase of network throughput can be achieved via the improvement of existing protocol stack, mostly at network and transport layer. In this paper we propose an advanced notification system for TCP c...

This paper examines the effectiveness of tampered-TCP whose congestion control mechanism has been modified by malicious users for higher than the normal TCP throughput. In this paper, We focus on a tampered-TCP in which the increase and decrease ratio of the congestion window size were changed during the congestion avoidance phase. The performance of the tampered-TCP was examined based on a mat...

Paxos is a prominent theory of state-machine replication. Recent data intensive systems that implement state-machine replication generally require high throughput. Earlier versions of Paxos as few of them are classical Paxos, fast Paxos, and generalized Paxos have a major focus on fault tolerance and latency but lacking in terms of throughput and scalability. A major reason for this is the heav...

Given the rapid increase in traffic, greater demands have been put on high-speed switching systems. Such systems have to simultaneously meet several constraints, e.g., high throughput, low delay and low complexity. This makes it challenging to design an efficient scheduling algorithm, and has consequently drawn considerable research interest. However, previous results either cannot provide a 10...

Infrared ports are employed in a wide variety of devices ranging from personal computers and printers to mobile phones. Infrared connectivity complies to specifications defined by Infrared Data Association (IrDA). The performance of IrDA links may be measured at the IrLAP data link layer, which controls the IrDA hardware. A simple equation to calculate throughput from different link parameters ...

Users of computer networks do not always get the throughput performance that they should get or need to get. Various factors affect the throughput performance, including bandwidth limitations in some links in the end-to-end network path between the user’s client workstation and the server and limitations in the throughput performance of the hardware/ software network interface of the client wor...