The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Wireless sensor networks can accommodate multiple applications by using a multi-stack architecture in order to deliver a large number of QoS. Multi-stack architectures can be optimized by allowing packet exchanges between stacks. However, routing loops may appear because of these exchanges. In this paper, we highlight the problem of routing loops generated when the same packet is routed according...
In Wireless Sensor Network (WSN) based smart grid condition monitoring applications (e.g., the detection of a Partial Discharge (PD) event in high voltage transformers), network traffic dramatically increases when cascaded faults occur. Reliability and delay are among the main issues that are affected by this increase in the traffic rates. In this paper, we present an adaptive Quality of Service (QoS)...
In this paper, two novel energy efficient resource allocation schemes are proposed for beyond next generation mobile networks. The schemes take into account the clustering capability of base stations before assigning users to the base stations. A topology management scheme that adjusts the number of active base stations in accordance with the traffic load and also responds to QoS deterioration is...
The purpose of the paper is to examine if public long term evolution (LTE) network is suitable for smart grid (SG) automatic metering usage, in a suburban scenario, without causing significant hindrance to typical LTE traffic. In addition, the same generalized suburban scenario is evaluated with a hybrid sensor — LTE network where wireless sensor network (WSN) cluster heads are also equipped with...
The deployment of Heterogeneous Networks (Het-Nets), specifically the smallcell networks ranging from picocells, microcells and femtocells, have been increased dramatically with the proliferation of next generation wireless devices and broad traffic demands. Embedding the promising Cognitive Radio (CR) technology into the smallcells have brought complementary increases in spectrum utilization as well...
Packet level information, such as packet content and inter-arrival time, are necessary for some network monitoring and control applications. However, current Software Defined Networks (SDN) such as OpenFlow provide limited access to packet-level information in the controller. In this paper, we propose an extension that enables the controller to access packet-level information through per-flow sampling...
The Peer-to-Peer Epi-Transport Protocol (PPETP) [1] is a peer-to-peer protocol designed for multimedia data distribution between end users. While its robustness and flexibility are attractive properties for multimedia cloud services, its lack of routing poses an issue if distant or specific nodes must be reached to, for example, provide service, or cloud interoperability. This paper describes an extension...
Dynamic aggregate bandwidth over-reservation is a scalable approach for Quality of Service (QoS) control mechanisms, since surplus of reservation allows for admitting several flows without signaling the network. Our recent work, the Advanced Class-based resource Over-Reservation (ACOR), shows interesting results by significantly reducing QoS control signaling overhead with increased resource utilization...
Private Mobile Radio (PMR) networks are cellular infrastructures dedicated to be used by professionals, such as public safety, military, industry and transportation organizations. In those networks, resources are scarce, and there are strong Quality of Service (QoS) requirements. The emergence of new services which need more bandwidth has made the world PMR leader focus on the LTE-Advanced protocol...
Network virtualization is considered as a promising way to overcome the limitations and fight the gradual ossification of the current Internet infrastructure. The network virtualization concept consists in the dynamic creation of several co-existing logical network instances (or virtual networks) over a shared physical network infrastructure. One of the challenges associated with this concept is the...
Although GENI has been readily embraced by the research community as a testbed for exploring new network architectures and services, its use as an educational tool has not seen the same level of acceptance and usage. There are multiple reasons for this, not the least of which is a lack of good examples showing how to use GENI in an educational setting. This paper attempts to remedy this by describing...
The Internet has recently seen the emergence of new value added services (IPTV, VoIP, etc‥), that require Quality of Service (QoS) guarantees. Given the nature of the Internet, most of the time, the source and the destination are connected to different providers, so that multiple ISPs must cooperate in order to offer end-to-end QoS guarantees. All this without revealing how each provider implements...
This paper analyzes the convergence properties of a distributed proportional-integral protocol for coordination of a network of agents with multiple leaders, dynamic information flow, and quantized measurements. We show that the integral term of the protocol allows the follower agents to ‘learn’ the reference rate, rather than have it available a priori, and also provides disturbance rejection capabilities.
Rural areas all over the world often lack affordable broadband Internet connectivity. This is particularly, but not solely, true for developing and emerging countries. Also rural areas in western countries share similar problems of high capital expenditure (CAPEX) and especially operational expenditure (OPEX) due to vast and sparsely populated areas, which often present an uneconomical environment...
IP/MPLS based ASON/GMPLS networks enable the interaction between the IP layer and the optical WDM layer. Furthermore, it decouples the physical topology from the dynamically created IP topology, which is called Virtual Topology. In this network architecture, there are two known routing policies, they are the Physical Topology First (PTF) and Virtual Topology First (VTF). PTF and VTF are different...
Multi-Technology Operations System Interface (MTOSI) as an open interface has been proposed by TM-Forum in 2003. It not only supports the interactions between EMS-NMS like MTNM, also it generalizes the logic, and can be used for the communications between the other operations systems involved in the OSS. In this work, we first proposed the novel modular structured OSS functional architecture model...
In this paper, we study an optimal topology and routing problem in the body area network (BAN). Aiming at maximizing the network lifetime, we consider the guarantee of two important quality-of-service (QoS) requirements for BAN applications: the minimum bit error rate and the minimum data rate. Especially, we study the effect of the maximum number of hops that is allowed in routing to the system performance.
As we all know, many-to-many multicast routing can be extensively used in computer or communication networks supporting various continuous multimedia applications. Here, we are concerned with the case where each user is both a sender and a receiver of messages in multicasting as well as a terminal. In this case, the multicast tree appears as a terminal Steiner tree (TeST). The problem of finding a...
Wireless sensor network, now-a-days become more and more popular because of its application domains. The data generated by each node will not be same. The different types of data will give different performance output of wireless sensor networks. There is different Quality of Service parameters must be taken into account. In this paper, we consider the Node density and topology as a metrics for testing...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.