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The Internet of Things (IoT) enables several heterogeneous devices, sensors, wearables, appliances and many other objects to inter-communicate and provide support for heterogeneous services. An IoT network needs to enable exchange diverse data types including multimedia and sensor data and be capable of handling a large number of IoT objects offering services at high quality levels. This paper proposes...
Emergency situations, such as fire incidents or terrorist attacks, have imposed strongest safety requirements for crowds gathering. The enhancement of situation awareness, decision support and emergency notification systems that facilitate the safety and effectiveness of evacuation processes in a major incident is therefore of utmost importance. ICT, IoT and smart systems have gained much attention...
Connected objects such as smart phones and wireless sensors becomes very attractive for our assisted daily life applications, because it offers continuous monitoring capability of both personal and environmental parameters. However, these systems still face a major energy issue that prevent their wide adoption. Indeed, continuous sampling and communication tasks quickly deplete sensors and gateways...
Internet of Things (IoT) is considered to be the Internet of the future. Thus, a lot of effort is being invested in finding the best design for a global IoT architecture. Recently, Software-Defined Networking (SDN) surfaced as a new networking paradigm that aims to centralize the network control and to separate the control and the data planes. Thus, one can benefit from SDN to abstract the major management...
The vision of future wireless network is to integrate different wireless access technologies, each with its own characteristics, into a common IP-based core network to provide mobile units (MU) seamless mobility and service continuity. Integration of different types of radio access networks is a challenging task as it requires comprehensive real time interconnectivity at all layers of the network...
Effective duration of a spectrum opportunity is an important factor for delivering any desired level of Quality-of-Service (QoS) to the secondary users (SU) in shared bands. Previous research efforts addressing the opportunity duration primarily focus on QoS prediction by the SUs using sensing and/or database approach. However, these initiatives to predict the opportunity duration and achievable QoS...
To improve response time of time-sensitive application in a network using low speed communication link, implementation design of a middleware bundle adjusting bandwidth between applications is proposed and performance of the design is experimentally evaluated. The experiment shows that worst case delay of a high-priority packet is reduced from 4230 ms to 218 ms.
Autonomic network management has been in a foreground of a research since many years. It brings autonomic computing principles in network management. Complexity of today's networks is growing very fast and autonomic computing brings an ultimate possibility how to manage the network in face of daily operations of human administrators. This paper starts with a brief overview of today's autonomic principles...
Several localization techniques have been proposed to identify the exact location of sensor nodes. Localization is important for computation of many applications such as routing in wireless sensor network. Energy preservation is a challenge in wireless sensor network and many algorithms have already been proposed. The localized node lifetime is maximized by using energy-efficient routing, use of minimum...
Our paper proposes a new quality of service concept for smart home services. We assume that every flat in a house has its own smart computer to perform local services and acts as an interface for the different sensors and actors inside the flat. These smart computers are interconnected using a plain switched Ethernet infrastructure. A central server offers shared services for each user and a gateway...
In this paper, we discuss the application of machine-to-machine (M2M) communications to healthcare. We analyze some of the enabling technologies of M2M and present an overview of the challenges, research opportunities, and standardization activities of this exciting area.
QoS is a key factor to the utility of Wireless Sensor Network (WSN) especially in the case of multiple sources data detecting with different time property. For environment detecting, there are not only same sensors just for one element but also heterogeneous sensors for multiple elements. Sometimes a single sensor has multiple functions to get several elements, which could be indicated to send the...
The paper contains an introduction about pervasive communications and networking and a focus about two application environments where wireless pervasive networks will be essential in future: information and communication technology (ICT) for emergency operations; and communication infrastructure for future logistics and secure transportation. Developing wireless pervasive networking for these environments...
QoS routing in wireless mesh networks (WMNs) is a daunting task. Finding a path for a given flow depends not only on the bandwidth-delay requirements of that flow but also on the available bandwidth of all the nodes in that path and the amount of bandwidth consumption caused by that flow along its path. Contrary to the wired networks, these two parameters are not fixed and depend on the interference...
Information privacy is usually concerned with the confidentiality of personally identifiable information (PII), such as electronic medical records. Nowadays, Web services are used to support different applications which may contain PII, such as healthcare applications. Thus, the information access control mechanism for Web services must be embedded into privacy-enhancing technologies. Further as application...
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