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Communications Magazine, IEEE

Issue 6 • Date June 2008

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Displaying Results 1 - 25 of 28
  • Front cover - IEEE Communications Magazine - Front cover

    Publication Year: 2008 , Page(s): C1
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  • Table of contents

    Publication Year: 2008 , Page(s): 2 - 4
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  • The President's page - Standards: making it work in the real world

    Publication Year: 2008 , Page(s): 6 - 10
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  • Society news - Preparing for comsoc elections: candidate q & a

    Publication Year: 2008 , Page(s): 12 - 20
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  • Certification corner - The candidate's handbook

    Publication Year: 2008 , Page(s): 22
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  • Telco services for end customers within Spanish programmes

    Publication Year: 2008 , Page(s): 24 - 28
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (622 KB) |  | HTML iconHTML  

    In this article we describe the CENIT projects in the ICT field related to services in which Telefonica participates: automotive networking (MARTA), ambient intelligence for e-health (AmiVital), and augmented telepresence (VISION). View full abstract»

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  • Product spotlights

    Publication Year: 2008 , Page(s): 30
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  • Conference calendar

    Publication Year: 2008 , Page(s): 32 - 33
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  • Global IEEE Communications Magazine Newsletter - June 2008

    Publication Year: 2008 , Page(s): 1 - 4
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  • Book reviews (2 books reviewed)

    Publication Year: 2008 , Page(s): 40 - 44
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  • New products

    Publication Year: 2008 , Page(s): 46 - 47
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  • IEEE Radio communications - components, systems, and networks [Guest Editorial]

    Publication Year: 2008 , Page(s): 48
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (99 KB) |  | HTML iconHTML  

    The three articles in this special series focus on issues in radio communications. The articles are summarized here. View full abstract»

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  • Manet gateways: radio interoperability via the internet, not the radio

    Publication Year: 2008 , Page(s): 51 - 59
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (435 KB) |  | HTML iconHTML  

    The objective of the DARPA Network Centric Radio System Program was to design, develop, integrate, and demonstrate the enabling communication technologies and system capabilities required to enable network-centric warfare. NCRS is a first-generation mobile ad hoc network designed to enable ground and airborne vehicle based on-the-move and on-the-halt network-centric connectivity using both IP and non-IP enabled devices. It demonstrated a gateway architecture that can offer radio interoperability among various current, future, coalition, and first responder communications radios via the network, not the radio. This capability illustrated a new dimension for communications interoperability for radio systems developers. View full abstract»

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  • Cross-layer enhancement for wlan systems with heterogeneous traffic based on DQCA

    Publication Year: 2008 , Page(s): 60 - 66
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (145 KB) |  | HTML iconHTML  

    This article proposes two scheduling algorithms based on the Distributed queuing collision avoidance MAC protocol for WLAN systems with heterogeneous voice and data traffic. The proposed schemes implement service differentiation and an opportunistic transmission policy by means of a PHY-MAC cross-layer dialog. In particular, transmissions are scheduled taking into account the service class, the state of the wireless channel, and the waiting time of messages at the MAC. Both schemes achieve significant performance improvement in terms of throughput and mean message delay, and increase the number of supported voice nodes in the system. The two mechanisms have different performance behavior as they present a trade-off between efficiency and fairness among the nodes. The obtained results emphasize the advantages of the proposed schemes and the importance of cross-layer design in wireless communication systems. View full abstract»

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  • Uplink quality measurement reporting mechanism for HSUPA

    Publication Year: 2008 , Page(s): 68 - 75
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (293 KB) |  | HTML iconHTML  

    This article proposes a new measurement reporting method applied for HSUPA systems. The presented mechanism offers an efficient uplink quality of service, especially in soft handover mobility conditions. 3GPP specifications restrict mobility procedures (such as serving cell change) to downlink quality measurement reporting. However, with the high data rate introduced on the uplink in HSUPA systems, downlink-only measurements can introduce reporting delays or mobility decision inaccuracies, and thus throughput degradation. The proposed algorithm provides event-based uplink measurements for the block error rate quality on each radio link in the HSUPA active set. Networks can then use the proposed mechanism along with the downlink event-based measurements to trigger a mobility procedure. The results show enhancements to the uplink throughput and overall system performance. View full abstract»

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  • Guest editorial - Multidomain optical networks: issues and challenges

    Publication Year: 2008 , Page(s): 76 - 77
    Cited by:  Papers (1)
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  • Control plane design in multidomain/multilayer optical networks

    Publication Year: 2008 , Page(s): 78 - 87
    Cited by:  Papers (29)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (148 KB) |  | HTML iconHTML  

    As optical networks proliferate, there is a growing need to address distributed multi- domain provisioning. Although multi-domain operation has been well-studied in packet/cell- switching networks, the multilayer (granularity) circuit-switched nature of modern optical networks presents a unique set of challenges. This survey addresses control plane design for such heterogeneous infrastructures and describes new challenges in the areas of state dissemination, path computation, and survivability. Sample results from a recent study also are presented. View full abstract»

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  • Multi-ASON and GMPLS network domain interworking challenges

    Publication Year: 2008 , Page(s): 88 - 93
    Cited by:  Papers (6)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (127 KB) |  | HTML iconHTML  

    This article describes the intercarrier external network-to-network interface development challenges at the Kei-han-na Info-Communications Open Laboratory. The E-NNI prototype that was developed provides interworking functionality between the automatically switched optical network control plane function of the ITU-T and the generalized multiprotocol label-switching control plane function of the IETF. In this article, an analysis of the differences between ASON network technologies and GMPLS network technologies, a detailed signaling protocol and routing protocol interworking mechanism, and the interworking experimental results of nationwide ASON and GMPLS network domains are described. View full abstract»

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  • A service plane over the PCE architecture for automatic multidomain connection-oriented services

    Publication Year: 2008 , Page(s): 94 - 102
    Cited by:  Papers (21)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (173 KB) |  | HTML iconHTML  

    In this article we concentrate on the automated provisioning of inter-AS services based on GMPLS-TE technology. We consider a provider alliance where TE connections are established between the members of the alliance. We propose an efficient and economically feasible architecture for the automatic provisioning of inter-AS GMPLS-TE, based on the introduction of a multidomain service plane coupled with the PCE-based architecture. View full abstract»

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  • Toward a new route control model for multidomain optical networks

    Publication Year: 2008 , Page(s): 104 - 111
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (190 KB) |  | HTML iconHTML  

    The design of the control plane model for multidomain optical networks poses complex challenges and introduces many open problems. Some initiatives have proposed optical BGP (OBGP), which is an extension of BGP supporting the advertisement and signaling of optical information between routing domains. We argue, however, that future optical networks offer the opportunity to avoid inheriting the limitations of BGP, especially in terms of routing and traffic engineering control. In this article we present a route control model replacing BGP/OBGP. Extensive simulations confirm that our route control model is able to drastically reduce the blocking experienced with OBGP, and this can be accomplished without increasing the number or frequency of routing updates exchanged between domains. View full abstract»

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  • Recent progress in dynamic routing for shared protection in multidomain networks

    Publication Year: 2008 , Page(s): 112 - 119
    Cited by:  Papers (8)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (137 KB) |  | HTML iconHTML  

    A large number of studies on routing for shared protection focus on minimizing the network transport capacity in a static routing framework. A smaller number of studies have been conducted on dynamic routing. Most of them do not meet the scalability requirements of multidomain networks. This article reviews the recent works in dynamic routing for shared protection in multidomain networks, and proposes a quantitative comparison among the most efficient approaches. Some of the remaining challenges are discussed at the end of the article. View full abstract»

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  • Enabling high availability over multiple optical networks

    Publication Year: 2008 , Page(s): 120 - 126
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (295 KB) |  | HTML iconHTML  

    Carriers are gradually adopting a network model that consists of MPLS-capable routers and OXCs interconnected by high bandwidth WDM links for transporting IP and Ethernet traffic. A control plane can be used to deliver dynamic circuit provisioning in the transport layer, as well as bandwidth provisioning and traffic engineering in higher layers. Globalization drives the quest for end-to-end QoS guarantees over different carrier networks. Recovery mechanisms are crucial to reach the high availability requirements of critical services. In this article, we share our vision on how to enable high availability services, spanning multiple networks using failure protection techniques while complying with administrative constraints. View full abstract»

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  • Phosphorus grid-enabled GMPLS control plane (GMPLS): architectures, services, and interfaces

    Publication Year: 2008 , Page(s): 128 - 137
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (244 KB) |  | HTML iconHTML  

    G2MPLS is a network control plane architecture that implements the concept of grid network services. In the framework of the 1ST Phosphorus project, GNS allows the provisioning of network and grid resources in a single step through a set of seamlessly integrated procedures. The implementation of GNS imposes a number of requirements in the control planes of the underlying network infrastructure. This article describes services such as GNS set up and restoration, GNS resource and service discovery, and advance reservation services, which are the main trigger factors of the G2MPLS control plane architectures. The article provides an overview of overlay architecture prior to turning to the main focus of the article, which is the integrated architecture through service procedures and the grid-enabled network interfaces provided by the Phosphorus project. View full abstract»

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  • Dynamic CANON: a scalable multidomain core network

    Publication Year: 2008 , Page(s): 138 - 144
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (119 KB) |  | HTML iconHTML  

    The explosion of current demand has brought the contemporary multidomain core network paradigm to its limit. In the quest for new approaches that exploit recent developments in optical technology, a novel network architecture that obviates most of the expensive and loss-prone centralized all-optical switches is described in this work. It is based on clustered architecture for nodes in optical networks and features a reconciliation between dynamic resource allocation and guaranteed end-to-end network performance in a multidomain network. This article enhances the distributed, collision-free slot aggregation inside domains of clustered core nodes with dynamic switching of slots/frames between the domains. Thus, it can support dynamic sub-wavelength allocations between network domains, using standard burst-switching techniques. This extends the high efficiency and multiplexing gain into the inter-domain network even under highly bursty traffic. It features both low-cost optical add/drop edge nodes exploiting WDM transmission and agile and modular centralized electro-optical switches that are presented in conjunction with the overall network architecture. Its performance exhibits very low burst loss probability traded for a higher but tolerable and bounded delay. View full abstract»

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  • Guest editorial - Topics in ad hoc and sensor networks

    Publication Year: 2008 , Page(s): 146
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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