Although the main objectives of dynamic spectrum access and cognitive radios are to solve the problem of spectrum scarcity and usage inefficiency, we show in...

This paper presents an analysis of a compiled database of power consumption and networking functionalities found in datasheets of routers and switches of so...

In this paper, we present the PolyMAX module which enhances ns-2 (network simulator 2), the most popular network simulator used in academia, to provide one o...

The topic of this paper is the evaluation of QoS parameters in live Pre-Wimax environments. The main contribution is the validation of an analytical delay-ji...

The role of the Information and Communication Technology sector on productivity and economic growth is constantly increasing and, due to its pervasiveness, ...

Traditionally, IP Network planning and design is mostly based on average delay or loss constraints which can often be easily calculated. Jitter, on the othe...

<p>With the increasing concern for global warming, the impact of Internet power consumption is gaining interest. In this paper, we explore, for the first ti...

The issue of Internet energy consumption and its contribution to global warming has been gaining importance lately. In this paper we present a compilation of...

This paper deals with the design and dimensioning of a novel survivable optical network structure, called Petaweb, that can reach a total capacity of severa...

In this paper, we evaluate the impact of the wireless channel and physical layer parameters on the performance of VoIP traffic in IEEE 802.11g networks. The ...

In this paper we analyze the trade-off between admission costs and receiver rewards of TCP Tahoe flows competing for buffer space. Since the buffer space is...

This paper explores the design modelling issues of the Petaweb, an optical network architecture that provides fully meshed connectivity between electronic...

We propose a hybrid routing scheme that combines traditional shortest-path based OSPF mechanisms as well as a new form of explicit routing executed at the ...

The convergence of different classes of traffic with different priorities over the wire- less network has become a reality. To insure that the users of key ...

In this manuscript we tackle the optimal upgrade of an innovative optical transport network architecture called the Petaweb, which has a particular composite...

This paper addresses the structural optimization of a next generation optical, lattice based, yottabit-per-second transport network topology, called the <i>...

This paper presents the design and dimensioning optimization of a novel optical network structure, called the PetaWeb, having a total capacity of several Pb...

In this paper, we study the problem of determining the capacity requirements for applications that require QoS guarantees. We consider three kinds of source ...

In this article we extend previous work showing that DiffServ can provide some QoS guarantees to both real-time and non real-time traffic in the event of th...

As ISP’s and Telco’s converge towards all-IP network infrastructures, the problem of QoS becomes more acute. To address it, operators are deploying differen...