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Global Information Infrastructure Symposium, 2007. GIIS 2007. First International

Date 2-6 July 2007

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Displaying Results 1 - 25 of 48
  • [Front cover]

    Publication Year: 2007 , Page(s): C1
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  • [Copyright notice]

    Publication Year: 2007 , Page(s): nil1
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  • Message from the Chairs

    Publication Year: 2007 , Page(s): nil2
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  • Organizing Committee

    Publication Year: 2007 , Page(s): nil3
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  • Technical Program Committee

    Publication Year: 2007 , Page(s): nil4
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  • List of reviewers

    Publication Year: 2007 , Page(s): nil5
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  • Table of contents

    Publication Year: 2007 , Page(s): nil6 - nil10
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  • [Breaker page]

    Publication Year: 2007 , Page(s): nil11
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  • Innovative Approaches to Improving Universal Global Access to Worldwide Telecommunications Network

    Publication Year: 2007 , Page(s): 1 - 5
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2122 KB) |  | HTML iconHTML  

    It is a well known fact that telecommunications services are not equally available to everyone in the world. This disparity is often called the "Digital Divide," There has been plenty of talk and publications about this disparity, but little progress has been made. People underestimate the principle that services will be available in a market economy if they can be provided at a profit. The servic... View full abstract»

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  • Experimenting with Mobile Context-Aware SIP-based Multimedia Communications

    Publication Year: 2007 , Page(s): 6 - 13
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2823 KB) |  | HTML iconHTML  

    Advancements in converged networks, technologies, and IP-based multimedia communications are pushing the boundaries of when, where, and how people are able to communicate. As a negative repercussion, the lack of automatic behavior adaptation in wireless communication services is resulting in decreased levels of privacy, safety, security, and overall quality. Such a repercussion can be rectified th... View full abstract»

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  • On how to Mitigate the Packet Reordering Issue in the Explicit Load Balancing Scheme

    Publication Year: 2007 , Page(s): 14 - 19
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1674 KB) |  | HTML iconHTML  

    Efficient load balancing is an important requirement for intelligent engineering of traffic over all-IP satellite networks. In this regard, the authors have recently proposed an explicit load balancing (ELB) scheme for next-generation LEO/MEO satellite systems. In ELB, a congesting satellite requests its neighboring satellites to forward a portion of data, originally destined to travel through the... View full abstract»

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  • Wireless Network Architecture for Digital Inclusion in Rural Environments

    Publication Year: 2007 , Page(s): 20 - 26
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4631 KB) |  | HTML iconHTML  

    Rural environments of developing countries usually lack of the appropriate communications infrastructure, accentuating the geographical isolation of rural communities. A cost-efficient and service-oriented deployment of Information and Communications Technologies (ICTs) helps to reduce the so-called "digital divide", improving the productivity and quality of life of those communities. Mobile commu... View full abstract»

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  • Packet Allocation for Efficient Use of Multiple Wireless Links in Cognitive Radio Networks

    Publication Year: 2007 , Page(s): 27 - 34
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3906 KB) |  | HTML iconHTML  

    Recently, the use of wireless systems as cellular phones, PHS, Wi-Fi, and WiMAX has been expanding. Meanwhile the resources of wireless radio systems are finite. Therefore, there is concern about exhausting these resources due to their expanded growth. The cognitive radio networks have been proposed to resolve this problem. We previously proposed cognitive radio network system architecture, which ... View full abstract»

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  • A New Method for WCDMA Uplink Coverage Planning

    Publication Year: 2007 , Page(s): 35 - 38
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (413 KB) |  | HTML iconHTML  

    The problem of dimensioning UTRAN radio interface along with the cell radius coverage evaluation algorithm are two challenging tasks based on a process which is different from the classical planning process applied for 2nd generation systems. Iterative methods found in the literature show divergence risks which are often met in practice. In this paper, we introduce a new method so as to... View full abstract»

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  • Performance Evaluation of New MAC Mechanisms for IEEE 802.11n

    Publication Year: 2007 , Page(s): 39 - 45
    Cited by:  Papers (1)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6149 KB) |  | HTML iconHTML  

    The medium access control (MAC) layer can be seen as the main bottleneck for the IEEE 802.11-based wireless networks. The famous overhead occurred at the MAC layer prevents the wireless local area networks (WLANs) from reaching the intended performance, which drag along a problem in the upcoming very high-speed WLANs where the physical layer rate may exceed 216 Mbps. To mitigate the overhead probl... View full abstract»

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  • Hybrid Wireless Networks - Towards an Efficient Gateway Discovery Scheme

    Publication Year: 2007 , Page(s): 46 - 51
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7890 KB) |  | HTML iconHTML  

    An ever-growing demand for higher data-rates and coverage extension has motivated the interconnection of mobile ad-hoc networks to fixed IP networks, to form a Hybrid Wireless Network (HWN). The convergence of ad-hoc and infrastructure network is also attractive in real-world scenarios due to its practicality and usefulness. In HWNs, gateways are generally used as an interconnection point for the ... View full abstract»

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  • The Design and Implementation of Energy-aware Data Gathering Techniques (EDGE) for In-building Wireless Sensor Networks

    Publication Year: 2007 , Page(s): 52 - 57
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (735 KB) |  | HTML iconHTML  

    In wireless sensor networks, application-dependent protocols are usually needed. In our application, each room in a building is equipped with a sensor node which can detect a fire and transmit its identifier to a monitoring station. In addition, the monitoring station needs to monitor the current status of each room periodically. To support such an application using the wireless sensor network, a ... View full abstract»

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  • A Practical Framework to Enable the Self-Management of Mobile Ad-Hoc Networks

    Publication Year: 2007 , Page(s): 58 - 65
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4769 KB) |  | HTML iconHTML  

    Mobile ad hoc networks (MANETs) form the underlying networking paradigm upon which pervasive and ubiquitous environments are founded. Combined with the growing need for mobility and flexibility in network infrastructures, the prominence and endurance of MANETs as a networking trend becomes evident. The main characteristics of MANETs include energy and bandwidth constraints, dynamic topologies and ... View full abstract»

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  • Behavioural Specification of Wireless Sensor Network Applications

    Publication Year: 2007 , Page(s): 66 - 72
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2207 KB) |  | HTML iconHTML  

    The number of wireless sensor network (WSN) applications is rapidly increasing and becomes an integral part of sensor nodes. These applications have been widely developed on TinyOS operating system using the nesC programming language. However, due to the tight integration to physical world, limited node's power and resources (CPU and memory) and complexity of combining components into an applicati... View full abstract»

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  • Energy Efficient Sensor Control Scheme for Home Networks based on DLNA-ZigBee Gateway Architecture

    Publication Year: 2007 , Page(s): 73 - 79
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4666 KB) |  | HTML iconHTML  

    With the rapid growth of device and computer system technologies, DLNA-compliant digital appliances have been becoming widespread in home network environments. Controlling home sensors via home networks will also be important in the near future. ZigBee has been expected to be as one of such sensor networks (because of its low power consumption). This paper proposes a gateway architecture that inte... View full abstract»

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  • Energy Provisioning Model for Maximizing Wireless Sensor Network Lifetime

    Publication Year: 2007 , Page(s): 80 - 84
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3688 KB) |  | HTML iconHTML  

    One of the major concerns in wireless sensor networks is improving the network lifetime. In this paper, we propose a new energy provisioning model and investigate the relationship between the network lifetime and the network density by using both simulations and analytic models. We show that the average amount of energy required to report an event to the sink decreases when sensor network density ... View full abstract»

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  • Policy-Based Context-Aware Overlay Networks

    Publication Year: 2007 , Page(s): 85 - 92
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3655 KB) |  | HTML iconHTML  

    Overlay networks are becoming widely used for delivering content as they provide effective and reliable services that are not otherwise available. However, they can negatively affect each other as well as the underlying network. It is therefore imperative to employ a management system that controls and adapts the behavior of these types of networks. This will meet not only the specific demands of ... View full abstract»

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  • A Negotiation Protocol Using Web Services in a Self-Management Framework

    Publication Year: 2007 , Page(s): 93 - 98
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3476 KB) |  | HTML iconHTML  

    Autonomic systems interaction is a challenging area of research. We describe a framework for service level negotiation within self-management systems using two kinds of interactions: vertical and horizontal. In the proposed framework, we provide autonomic systems with a new interaction capability thanks to the negotiation with their peers. The negotiation process occurs between high-level autonomi... View full abstract»

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  • A Model Based Approach for Policy Tool Generation and Policy Analysis

    Publication Year: 2007 , Page(s): 99 - 105
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2731 KB) |  | HTML iconHTML  

    We outline an approach to policy specification and analysis in which an information model is used as the starting point for semi-automated generation of an integrated suite of languages, tools and an ontology. The suite includes separate domain-specific languages for the specification of systems structure and policies respectively, editors and checkers for these languages, and a baseline ontology ... View full abstract»

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  • Validation of a Negotiation Protocol for Registry Composition in Ambient Networks

    Publication Year: 2007 , Page(s): 106 - 111
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2079 KB) |  | HTML iconHTML  

    Ambient networks present a new networking concept for beyond 3G. Network composition is a core concept of Ambient Networks. It enables dynamic and uniform interworking between heterogeneous networks, on both control and data planes. The first step towards network composition is the negotiation of the composition details, between all of the functional entities of the control plane (e.g. Mobility, C... View full abstract»

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