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Communications Magazine, IEEE

Issue 5 • Date May 2009

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Displaying Results 1 - 25 of 29
  • IEEE Communications Magazine - Front cover

    Publication Year: 2009 , Page(s): C1
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  • Table of contents

    Publication Year: 2009 , Page(s): 2 - 4
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  • Steering the society's flagship conferences [The President's Page]

    Publication Year: 2009 , Page(s): 6 - 8
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  • Conference calendar

    Publication Year: 2009 , Page(s): 10 - 14
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  • Ad Hoc Mobile Wireless Networks: Principles, Protocols, and Applications (Sarkar, S. K. et al.; 2008) [Book Review]

    Publication Year: 2009 , Page(s): 12 - 14
    Cited by:  Papers (1)
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  • New products

    Publication Year: 2009 , Page(s): 16 - 18
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  • Candidates announced for board of governors - [society news]

    Publication Year: 2009 , Page(s): 20 - 27
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  • Product spotlights

    Publication Year: 2009 , Page(s): 28
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  • Distinguished lecturer tour in Latin America - October 2008 - [Global communications news letter]

    Publication Year: 2009 , Page(s): 1 - 4
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  • Warm welcomes - [Certification corner]

    Publication Year: 2009 , Page(s): 33
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  • Optical communications: the highways of the future [Series Editorial]

    Publication Year: 2009 , Page(s): 34 - 36
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  • A dynamic impairment-aware networking solution for transparent mesh optical networks

    Publication Year: 2009 , Page(s): 38 - 47
    Cited by:  Papers (17)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (255 KB) |  | HTML iconHTML  

    Core networks of the future will have a translucent and eventually transparent optical structure. Ultra-high-speed end-to-end connectivity with high quality of service and high reliability will be realized through the exploitation of optimized protocols and lightpath routing algorithms. These algorithms will complement a flexible control and management plane integrated in the proposed solution. Physical layer impairments and optical performance are monitored and incorporated in impairment-aware lightpath routing algorithms. These algorithms will be integrated into a novel dynamic network planning tool that will consider dynamic traffic characteristics, a reconfigurable optical layer, and varying physical impairment and component characteristics. The network planning tool along with extended control planes will make it possible to realize the vision of optical transparency. This article presents a novel framework that addresses dynamic cross-layer network planning and optimization while considering the development of a future transport network infrastructure. View full abstract»

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  • SIP-empowered optical networks for future IT services and applications

    Publication Year: 2009 , Page(s): 48 - 54
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (345 KB) |  | HTML iconHTML  

    This article presents a novel application-aware network architecture for evolving and emerging IT services and applications. It proposes to enrich an optical burst switching network with a session control layer that can close the gap between application requests and network control. The session control layer is implemented using the session initiation protocol, giving birth to what is called a SIP-OBS architecture. The article discusses the important added value of this architecture, and shows that it may support a number of end-to-end resource discovery and reservation strategies (for both network and non-network resources). Finally, it presents a testbed implementation where this approach was experimentally validated. View full abstract»

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  • Impairment-aware routing and wavelength assignment in translucent networks: State of the art

    Publication Year: 2009 , Page(s): 55 - 61
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (207 KB) |  | HTML iconHTML  

    In the last 15 years, numerous investigations by both academia and industry have been carried out in the field of all-optical WDM networks' design. In all-optical - or transparent - WDM networks, data is transmitted from its source to its destination in optical form, switching/routing operations being performed in the optical domain without undergoing any optical-to-electrical conversion. Optical transparency may considerably reduce network infrastructures' cost and extend the range of services offered by the carriers. Designing an all-optical network consists of assigning to each traffic demand an endto- end optical circuit, also called "lightpath." In such networks, the problem of routing and wavelength assignment (RWA) aims to find an adequate route and an adequate wavelength for each traffic demand subject to the wavelength continuity constraint and limited network resources. The feasibility of the obtained lightpaths in terms of admissible quality of transmission (QoT) presents another difficulty. Indeed, according to the state of technology, various physical impairments degrade the quality of the optical signal along its propagation. Optical fibers and optical amplifiers as well as optical switching/routing nodes impact on end-to-end QoT. In this context only translucent networks are achievable, for instance, at a pan-European or pan-American scale. A translucent network uses electrical regenerators at intermediate nodes only when it is necessary to improve the signal budget. The cost of a network is roughly proportional to average number of input/output ports of a node. Knowing that today an optical port is five times less expensive than an electrical one, sparse regeneration allows translucent WDM networks to meet the QoT requirements and achieve performance measures close to those obtained by fully opaque networks at much lower cost. In this article we propose a state of the art in the field of impairment-aware RWA (IA-RWA), starting from the case of pred- ictable traffic demands to the open problem of stochastic traffic demands. An economic analysis of the IA-RWA problem is proposed to justify the concept of translucent networks. The case of multi-domain lightpath establishment is also considered. Several examples of still open problems are mentioned in the article. Most of the concepts and results presented in this article refer to the FP7 DICONET European project in which the authors are involved. View full abstract»

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  • Mupbed: a pan-European prototype for multidomain research networks

    Publication Year: 2009 , Page(s): 62 - 71
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (809 KB) |  | HTML iconHTML  

    Integration and full interoperability are challenging areas of research in wide area networks today. A European project, MUPBED, has recently concluded and achieved the main result of integrating and demonstrating technologies and network solutions that enable the operation of future European research infrastructures capable of supporting advanced applications. The achieved results are largely valid for any multidomain network scenario. The test network set up by the project is a prototype multidomain optical network able to provide connectivity on demand services across multiple domains directly driven by the applications. Rather than implementing ex novo a unified control plane and replacing existing equipment, the project approach has been to enable seamless interworking of different control planes by means of ASON/GMPLS and standardized network interfaces. This was done in accomplishment of the project target, which was to test and trial a common migration path toward the future European research network that should be followed by national research and education network operators, together with commercial operators. This article describes the main aspects of the MUPBED experience, which by its own peculiar nature provides deep insight into the most recent evolution of control-plane-enabled optical networking toward multidomain integration. Topics covered by the project and briefly related here include network architecture, applications, protocol and control software development, standardization issues, design, analysis and simulation, testing, measurement, and monitoring. View full abstract»

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  • Toward efficient failure management for reliable transparent optical networks

    Publication Year: 2009 , Page(s): 72 - 79
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (218 KB) |  | HTML iconHTML  

    Security and reliability issues are of utmost importance in transparent optical networks due to the extremely large fiber throughput. Fast and successful reaction and restoration mechanisms performed by failure management can prevent loss of large amounts of critical data, which can cause severe service disruption. In this article we discuss failure management issues in TONs, the mechanisms involved, and optical monitoring techniques. Furthermore, we propose applying structural properties of self-organizing systems to create a "small world" hybrid supervisory plane that can enable faster system-wide communication. We also investigate the possibility of a scale-free structure aimed at improving robustness in the network and propose various topology generation algorithms. View full abstract»

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  • The first ITU-T kaleidoscope event: "Innovations in NGN" [Series Editorial]

    Publication Year: 2009 , Page(s): 80 - 81
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  • A new generation network: Beyond the Internet and NGN

    Publication Year: 2009 , Page(s): 82 - 87
    Cited by:  Papers (26)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (242 KB) |  | HTML iconHTML  

    This article describes requirements and fundamental technologies to enable the provision of a new generation network beyond the Internet and the next generation network, both of which are based on IP protocols. Although the Internet has grown into a social infrastructure and the NGN will replace legacy telephone networks and cellular phone networks in the near future, it is time to start R&D on revolutionary network technologies and clean-slate designed architecture beyond the IP structure. Here some R&D activities for a new generation network are shown. This article is a revised version of the author's presentation in the First ITU-T Kaleidoscope Academic Conference held in Geneva last May. View full abstract»

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  • Open standards: A call for change

    Publication Year: 2009 , Page(s): 88 - 94
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (98 KB) |  | HTML iconHTML  

    Digital communication is both pervasive and vital across society. This creates a growing public interest in the technical standards that proscribe public communications. The public is demanding open standards. The rallying cry "open standards" means different things to different groups. This article reviews the different needs of specific groups of society and develops ten different requirements for open standards. To implement these requirements, changes to the rules and procedures of standardization organizations, international bodies (e.g., WIPO, WTO), and national patent office rules are proposed. Interestingly, technical changes, in the form of new standardized protocols, rather than legal or policy changes, appear to be the most important changes to meet the requirements of open standards. View full abstract»

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  • The architecture and a business model for the open heterogeneous mobile network

    Publication Year: 2009 , Page(s): 95 - 101
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (275 KB) |  | HTML iconHTML  

    The mobile communications market has grown rapidly over the past ten years, but the market could reach saturation in the foreseeable future. More flexible mobile networks that can meet various user demands and create new market openings are required for further growth. Heterogeneous networks are more suitable than homogeneous networks for meeting a wide variety of user demands. There are two types of heterogeneous networks: a closed type, where network resources are deployed and operated by communication carriers, and an open type, where network resources can be deployed not only by existing operators, but also by companies, universities, and so on. It will be easy for newcomers to enter mobile businesses in an open heterogeneous mobile network so many innovative services are likely to be provided through cooperation between various companies or organizations. This article proposes a revised architecture for TISPAN-NGN, which corresponds to heterogeneous networks and open mobile markets, and presents a new business model. View full abstract»

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  • Differential phase shift-quantum key distribution

    Publication Year: 2009 , Page(s): 102 - 106
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (168 KB) |  | HTML iconHTML  

    Quantum-key distribution has been studied as an ultimate method for secure communications, and now it is emerging as a technology that can be deployed in real fiber networks. Here, we present our QKD experiments based on the differential- phase-shift QKD protocol. A DPSQKD system has a simple configuration that is easy to implement with conventional optical communication components, and it is suitable for a high-clock rate system. Moreover, although the DPS-QKD system is implemented with an attenuated laser source, it is inherently secure against strong eavesdropping attacks called photon number-splitting attacks, which pose a serious threat to conventional QKD systems with attenuated laser sources. We also describe three types of single-photon detectors that are suitable for high-speed, long-distance QKD: an up-conversion detector, a superconducting single-photon detector, and a sinusoidally gated InGaAs avalanche photodiode. We present our recordsetting QKD experiments that employed those detectors. View full abstract»

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  • Open API standardization for the NGN platform

    Publication Year: 2009 , Page(s): 108 - 113
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (117 KB) |  | HTML iconHTML  

    Next-generation networks promise to provide a richer set of applications for the end user, creating a network platform that enables the rapid creation of new services. Significant progress has been made in the standardization of NGN architecture and protocols, but little progress has been made on open APIs. This article outlines the importance of open APIs and the current achievements of the standards bodies. It concludes with a brief set of issues that standards bodies must resolve in relation to these APIs. View full abstract»

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  • Topics in automotive networking [Series Editorial]

    Publication Year: 2009 , Page(s): 114 - 115
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  • Communication architecture for cooperative systems in Europe

    Publication Year: 2009 , Page(s): 116 - 125
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1647 KB) |  | HTML iconHTML  

    Wireless communications for intelligent transportation systems promise to be a key technology for avoiding the traffic nightmares of today - accidents and traffic jams. But there is one major challenge to be overcome before such a cooperative system can be put into place: standardization. This article provides an overview of the technical developments in Europe and their convergence toward a set of European standards. We address the current state of the standardization activities and the potential scenarios and use cases, and we describe the fundamental concepts of a European communication architecture for cooperative systems. View full abstract»

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  • Wave: A tutorial

    Publication Year: 2009 , Page(s): 126 - 133
    Cited by:  Papers (66)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (141 KB) |  | HTML iconHTML  

    Intelligent transportation systems have been under development since at least the early 1990s. The rationale behind the concept is to automate the interactions among vehicles and infrastructure to achieve high levels of security, comfort, and efficiency. Communications, in general, and networking, in particular, have been essential elements in the evolution of these systems. The IEEE has developed a system architecture known as WAVE to provide wireless access in vehicular environments. This article gives an overview of the associated standards. The presentation loosely follows the order of the layers of the open systems interconnection model. View full abstract»

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Aims & Scope

IEEE Communications Magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications systems (PCS), ISDN, and more.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Osman Gebizlioglu
Huawei Technologies