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Communications Magazine, IEEE

Issue 5 • Date May 2005

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Displaying Results 1 - 25 of 32
  • Intelligent network control middleware platform

    Publication Year: 2005 , Page(s): S11 - S18
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (174 KB) |  | HTML iconHTML  

    As multivendor, multitechnology networks are deployed in a carrier's network, a network operator must integrate these networks to have a unified control platform to lower operational costs and deliver customer-specified QoS. An intelligent network control middleware framework for multivendor networks is described in this article. The architectural framework is designed to control and manage next generation network elements as well as legacy telecom networks. The layers within the framework include mediation, control plane, network resource management, and application programmable interfaces. An independent, distributed control plane aims at service interoperability and network scalability. An experimental study on circuit provisioning using the proposed middleware framework is conducted on Sun Lab servers. The middleware performance results are reported. Experimentation architecture and metrics can be extended to a performance benchmark upon which the control plane products can be evaluated. View full abstract»

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  • Routing, Flow, and Capacity Design in Communication and Computer Networks - [Book Review]

    Publication Year: 2005 , Page(s): 26
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    Freely Available from IEEE
  • Large-scale cooperative caching and application-level multicast in multimedia content delivery networks

    Publication Year: 2005 , Page(s): 98 - 105
    Cited by:  Papers (28)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (151 KB) |  | HTML iconHTML  

    The Internet and multimedia technologies have greatly changed our lives. With the increasing popularity of multimedia entertainment applications over the Internet, innovative infrastructures and technologies are needed to efficiently distribute the surging amount of multimedia contents. Content delivery networks provide an intermediate layer of infrastructure that helps to deliver the contents from content providers to a large community of geographically distributed users. Cooperative caching and application-level multicast are two technologies that can be implemented in a multimedia content delivery network for delivering on-demand and live multimedia contents respectively. This article introduces the ideas and approaches of implementing cooperative caching and application-level multicast under a hierarchical architecture to achieve large-scale multimedia content delivery. View full abstract»

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  • OFC product roundup

    Publication Year: 2005 , Page(s): 64 - 65
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  • Editorial - The Future Tellers

    Publication Year: 2005 , Page(s): S2
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  • Society News - Candidates announced for board of governors

    Publication Year: 2005 , Page(s): 11 - 16
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  • Relative QoS optimization for multiparty online gaming in DiffServ networks

    Publication Year: 2005 , Page(s): 75 - 83
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (156 KB) |  | HTML iconHTML  

    Real-time interactive multimedia multiparty communication is becoming a vital part of modern Internet services. As one of its applications, online gaming attracts a huge group of fans playing over the Internet. It has new requirements for relative QoS. This article gives a brief introduction to these new QoS requirements, and then presents an algorithm to satisfy these requirements in the differentiated services network for client-server-topology-based online gaming services. Our simulation results show that this algorithm can provide optimized relative QoS support for online gaming as an example of multiparty communications. View full abstract»

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  • Global communications newsletter - A romanian way toward mobile broadband: an interview with Richard Moat, CEO, Orange Romania

    Publication Year: 2005 , Page(s): 27 - 30
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  • Advertisers' Index

    Publication Year: 2005 , Page(s): 164
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  • Guest editorial - Entertainment everywhere: system and networking issues in emerging network-centric entertainment systems: part 1

    Publication Year: 2005 , Page(s): 67 - 68
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (91 KB) |  | HTML iconHTML  

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  • All optical XOR logic gates: technologies and experiment demonstrations

    Publication Year: 2005 , Page(s): S19 - S24
    Cited by:  Papers (24)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (139 KB) |  | HTML iconHTML  

    This article reviews the current status and technologies of all-optical XOR gates. Various schemes with semiconductor optical amplifiers, particularly those associated with interferometric structures, are discussed and compared. Finally, the applications of all-optical XOR gates to emerging networks are explored, and the future direction is outlined. View full abstract»

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  • Implementation of IPv6 services over a GMPLS-based IP/optical network

    Publication Year: 2005 , Page(s): 114 - 122
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (235 KB) |  | HTML iconHTML  

    In recent days, there has been considerable interest in deploying IPv6-based services. Trial and commercial IPv6 services offering has already begun, especially in Japan, Korea, China, and other parts of the world. At the same time, many service providers have embraced MPLS as the enabler for the required multiservice capabilities of their next-generation packet networks. Also, the widespread deployment of DWDM-based optical transport systems in the core network to satisfy the tremendous need and increase in capacity demand has led network planners to reconsider traditional approaches to provisioning and network restoration, and plan integration of the optical layer into the MPLS infrastructure according to the emerging GMPLS technology. The purpose of this article is to discuss next-generation network architecture evolution and present a detailed architecture for transport of emerging IPv6 services and applications over next-generation GMPLS multiservice backbone networks. This article also presents an implementation and demonstration of this technique for IPv6 transport over a GMPLS backbone network as well as interoperability verification of IPv6 and GMPLS using a GMPLS network testbed. View full abstract»

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  • Conference preview - SUPETCOMM 2005: changing industry on display

    Publication Year: 2005 , Page(s): 18 - 19
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  • Product Spotlights

    Publication Year: 2005 , Page(s): 61 - 62
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  • Security limitations of an authorized anonymous ID-based scheme for mobile communication

    Publication Year: 2005 , Page(s): 149 - 153
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (152 KB) |  | HTML iconHTML  

    In this article we discuss the security limitations of a recently proposed authorized anonymous ID-based scheme for mobile communications due to He et al. We present three example attacks an attacker could mount on the scheme, point out the weaknesses we exploited, and suggest how to counter them. Our attacks are variants of the replay attack to which any security scheme should be resistant. Such attacks are easy to mount since they simply require replaying previous valid messages, and are often passive attacks and thus hard to detect. Therefore, our results are devastating since they show that the scheme has failed to achieve its main objective of establishing mutual authentication between legitimate parties. View full abstract»

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  • Unlicensed cognitive sharing of TV spectrum: the controversy at the Federal Communications Commission

    Publication Year: 2005 , Page(s): 24 - 25
    Cited by:  Papers (41)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (62 KB) |  | HTML iconHTML  

    As societies become increasingly mobile and more dependent on information technologies, their radio spectrum also needs change. The basic spectrum management structure in all countries was developed over a long period, and much of the basic framework has remained stable for decades. The FCC is interested in making more spectrum available to unlicensed devices because of the explosive growth of IEEE 802.11/Wi-Fi unlicensed wireless LAN technology, and because the FCC recognizes that there is a great deal of "white space" that could be exploited by unlicensed devices. The FCC proposal selected the TV bands as an initial home for cognitive radio based on several factors. First, the frequencies used for TV can give greater range in rural areas than the microwave frequencies used for Wi-Fi, and can also give better building penetration than Wi-Fi in all areas. Second, TV broadcast systems usually use high antennas, and the intended receivers need greater than 10 dB signal-to-noise ratio (SNR) to function. A variety of controversial issues have emerged from public comments. One concern is that the confusion resulting from the proposal might discourage purchase of new digital televisions and hence delay the transition from analog to digital televisions. This would also delay the transfer of some current TV spectrum to new mobile uses, including public safety. View full abstract»

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  • Guest editorial - Consumer communications and networking series

    Publication Year: 2005 , Page(s): 140
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (224 KB) |  | HTML iconHTML  

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  • Management traffic in emerging remote configuration mechanisms for residential gateways and home devices

    Publication Year: 2005 , Page(s): 154 - 162
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (149 KB) |  | HTML iconHTML  

    XML technology is penetrating the network management in the IETF, UPnP, and DSL forum suite of standards and protocols. The advantages of XML are offered at the cost of long byte streams due to XML's inherently verbose nature. The increase in packet size for remote configuration and management can pose problems, if executed in a point-to-multipoint arrangement comprising one automatic configuration server and thousands of home gateways and multimedia devices. We investigate and exploit the repetitive nature of text patterns in typical XML documents as produced by the configuration and management tasks and as coded in SOAP RPCs. The solution mainly comes from application of the Lempel-Ziv compression algorithm, with minimal additions in the proposed DSL Forum standard. Numerical and experimental results support the applicability and advantages of the proposed approach and provide insight on how these are attributable to different layers of the employed protocol stack. View full abstract»

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  • An experimental study of an optical burst switching network based on wavelength-selective optical switches

    Publication Year: 2005 , Page(s): S3 - 10
    Cited by:  Papers (6)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (206 KB) |  | HTML iconHTML  

    In this article we report the system structure and test results of an experimental optical burst switching network with three edge router's and one core node. Wavelength-selective switches developed for this system and their characteristics are depicted. The implementation and performance of our new scheme for the just-in-time protocol are described. We also report experimental results of FTP and VOD services on this system. Some parameters, including traffic rate, average burst data length, and assembly time, are studied. View full abstract»

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  • Extensions for Internet QoS paradigms to mobile IP: a survey

    Publication Year: 2005 , Page(s): 132 - 139
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (162 KB) |  | HTML iconHTML  

    Mobile IP has been chosen as the core mobility management mechanism for wireless LANs, 3G cellular networks, and, most recently, aeronautical networks. It is viewed as a key element in providing a universal roaming solution across different wireless access technologies. However, mobile IP in its basic form inherits the IP incapability to provide QoS guarantees. This results in mobile IP's lack of support for seamless intradomain mobility. This article surveys extensions that have been proposed to enhance the QoS functionality of mobile IP. It gives a brief overview of mobile IP and Internet QoS paradigms, and describes their general shortcomings with regard to QoS and mobility, respectively. It then discusses the extensions that have been proposed in the literature and provides a qualitative comparison. View full abstract»

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  • Latency-driven distribution: infrastructure needs of participatory entertainment applications

    Publication Year: 2005 , Page(s): 106 - 112
    Cited by:  Papers (12)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (148 KB) |  | HTML iconHTML  

    This article evaluates network and server infrastructure requirements to support real-time flows associated with networked entertainment applications. These include the state information flow to update the status of the virtual environment and immersive communication flows such as voice, video, gesture, and haptics communication. The article demonstrates that scaling these applications to large geographical spreads of participants requires distribution of computation to meet the latency constraints of the applications. This latency-driven distribution of computation is essential even when there are no limitations on the availability of computational resources in one location. The article provides detailed results on distributed server architectures for two of these real-time flows, state information and immersive voice communication. It also identifies a generic set of requirements for the underlying network and server infrastructure to support these applications and propose a new design, called switched overlay networks, for this purpose. View full abstract»

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  • Guest editorial - The next-generation internet

    Publication Year: 2005 , Page(s): 113
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (296 KB) |  | HTML iconHTML  

    First Page of the Article
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  • Tracing cyber attacks from the practical perspective

    Publication Year: 2005 , Page(s): 123 - 131
    Cited by:  Papers (24)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (158 KB) |  | HTML iconHTML  

    The integrity of the Internet is severely impaired by rampant denial of service and distributed DoS attacks. It is by no means trivial to devise a countermeasure to address these attacks because of their anonymous and distributed nature. This article presents a brief survey of the most promising recently proposed schemes for tracing cyber attacks: IP traceback. Since IP traceback technology is evolving rapidly, for the community to better comprehend and capture the properties of disparate traceback approaches, we first classify these schemes from multiple aspects. From the perspective of practicality and feasibility, we then analyze and explore the advantages and disadvantages of these schemes in depth so that shortcomings and possible enhancements of each scheme are highlighted. Finally, open problems and future work are discussed, and concluding remarks are drawn. View full abstract»

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  • The brave new world of online digital home entertainment

    Publication Year: 2005 , Page(s): 84 - 89
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (144 KB) |  | HTML iconHTML  

    The emergence of widespread broadband home Internet connectivity is leading to a change in patterns of home user online behavior. Innovative networked applications (e.g., online multimedia and gaming) are making their mark. Will the next killer Internet applications be new forms of online digital home entertainment? Can the Internet support a widespread explosion in the use of such applications? In this article we explore potential problems in running interactive multimedia and game applications over existing Internet and home access network infrastructures. We also discuss the issues both network and application developers should consider when designing new Internet entertainment applications such that widespread usage becomes a possibility. View full abstract»

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  • Bringing multimedia contents into MP3 files

    Publication Year: 2005 , Page(s): 90 - 97
    Cited by:  Papers (2)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (197 KB) |  | HTML iconHTML  

    The digital music revolution has improved the availability of music and made it easier to enjoy. The shift from hard support, such as audio CDs, to software leaves some unsatisfied by the loss of additional media contents, such as images, lyrics, and CD cover. We propose to fill the gap by enriching e-music with multimedia contents. Our proposal focuses specifically on MP3 as a widely distributed open format. The challenge we meet in enriching MP3 lies in maintaining audio compatibility and avoiding file size explosion. To this end, we define a description language to express multimedia contents in a textual way, with higher representation efficiency than existing languages. We also address security issues that arise from the use of an open format. Effectiveness is shown with an MP3 player capable of rendering multimedia contents. 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