CONEXT

The number of wireless devices and the traffic volume generated by these devices become significant today, and many devices begin supporting 802.11n protocol for higher-speed wireless access. However, the diversification in link types of end-hosts may ...

We propose an alternative router design to fill the gap between PC-based open source software routers and commercial high-end routers. Our hardware accelerated software router uses commodity PC hardware running an open source software router for the ...

File Hosting Services (FHS) such as Rapidshare and Mega-upload have recently become popular. The decline of P2P file sharing has prompted various services including FHS to replace it. We propose a comprehensive multi-level characterization of the FHS ...

We investigate if it is possible to reconstruct a mobile phone's mobility using its Bluetooth contacts with other mobile devices, some of which are equipped with GPS receivers. Our data mining analysis, based on two different data sets, shows that in ...

We present a new multipath transport protocol - Heterogeneous Multipath Transport Protocol (HMTP), powered by fountain codes to improve throughput performance and path utilization of heterogeneous multi-homing networks. HMTP solves the receive buffer ...

The network coordinate (NC) systems, which are scalable in estimating the latencies between network hosts, are significantly limited by the Triangle Inequality Violations (TIVs). Previously, two-layer Vivaldi systems like Pharos were proposed to remedy ...

Data communication in the Internet is based on the borderless interplay of Autonomous Systems (ASes). An AS abstracts one or multiple IP networks, which may be globally distributed, but is owned by an organization located in a country. Current research ...

Nowadays, mobile wireless users are in constant demand of connectivity.

Satisfying the connectivity requirements of the users requires a large amount of Access Points (APs) in order to enlarge the wireless service coverage. Wireless Metropolitan Area ...

The largest part of routers and switches, today deployed in production networks, has very limited energy saving capabilities, and substantially requires the same amount of energy both when working at full speed or when being idle. In order to ...

Principal component analysis (PCA) is a statistical technique that has been used for data analysis and dimensionality reduction. It was introduced as a network traffic anomaly detection technique firstly in [1]. Since then, a lot of research attention ...

This paper describes our initial experiences with using the IP timestamp option to infer router statistics such as traffic shape and CPU load. By deducing this information through the use of an IP option, we can gather these statistics without ...

In this paper, we study the potential security issues in data center networks (DCN). We focus on TCP, and propose a synchronized denial of service (SDoS) attack model. In SDoS, malicious tenants may employ multiple virtual machines (VM) as attackers and ...

Experimentation of a wireless network protocol over the air is of significant interest. However it is rarely performed compared to the simulation because of the difficulties in coding and debugging as well as scalability and repeatability. CommonCode is ...

Next-Generation Internet applications demand inherent flexibility and programmability from the underlying network. OpenFlow-based substrate, as a potential solution, provides the required support to enable network innovations by separating the ...

The Internet has matured to a mission-critical infrastructure, and recently attracted much attention at political and legal levels in many countries. Civil actions regarding the Internet infrastructure require a thorough understanding of the national ...

The broadcast nature of wireless networks is both a boon and a bane. On the one hand, multiple receivers may overhear a single transmission on the same channel at no additional cost above a point-to-point transmission; this property has been exploited ...

We consider a spread-spectrum channelization based secondary network that operates cognitively to coexist with primary users. A new framework for cross-layer design that incorporates adaptation between spectrum-spreading channelization and routing is ...

The growth of Internet eXchange Points (IXPs) as an important component in the Internet Autonomous System (AS) level topology has led to the need for a detailed evaluation of their effect on Internet topology evolution and inter-domain packet routing. ...

Flows typically pass through multiple networks owned and managed by different ISPs (Internet Service Providers). Users pay usage fee to the traversed networks, and each ISP typically applies different charging rules, depending on their own economic ...

This paper proposes a new spectrum handoff approach for multiple channels cognitive radio networks to support delay sensitive applications such as VoIP. The delay probability is estimated to determine whether and how to perform the handoff operation. ...

Peer-to-Peer (P2P) systems have gained a phenomenal popularity in the past few years; BitTorrent serves daily tens of millions of people and generates an important fraction of the Internet traffic. Measurement data collected from real P2P systems are ...

We address an issue relevant to Content-Centric Networks, in which content is discovered by flooding a request over the entire network. In our design, the collection of objects resolvable by a router is represented using Bloom filters. In response to ...

Depending on their configuration, administration, and provisioning, networks provide drastically different features. For instance, some networks provide little failure resilience while others provision failover capacity and deploy middleboxes to protect ...

Cloud services are radically changing the way we access the information from the Internet and how the "digital goods" are delivered to users. To enable such services, large scale data centers are deployed at various geographical locations, and the ...