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Coping with network failures has been recognized as an issue of major importance in terms of social security, stability, and prosperity. It has become clear that current networking standards fall short of coping with the complex challenge of surviving failures. The need to address this challenge has become a focal point of networking research. In particular, the concept of tunable survivability offers...
Today's computer networks rely on a wide spectrum of specialized middleboxes to improve their security and performance. Traditional middleboxes that are implemented by dedicated hardware are expensive and hard to manage. A promising technique of consolidated middleboxes – implementing traditional middleboxes in Virtual Machines (VMs) – offers economical yet simplified management of middleboxes in...
It is necessary to select the best routing techniques to send the data from a network to the other efficiently through the subnet. Routing refers to the process of gaining and distributing the information in a network. So far none of the algorithms provided the best choice for all the cases. This paper presents a simulator which is a routing simulator tool that measures the performances of the given...
Software-Defined Networking (SDN) is a new approach to design, build and manage computer networks. Multicast is used to transmit the same video file to different users. In this paper, we propose two multicast algorithms to solve the multicast problem in SDN environment. Both algorithms consider the balance of bandwidth utilization and communication delay between the source and clients. Simulation...
A novel routing algorithm is presented to avoid the impact of process variation and congestion for asynchronous NoC design. Process variation Delay and Congestion aware Routing (PDCR) is proposed as adaptive, low cost and scalable routing algorithm. The performance of PDCR with process variation is determined as compared with different routing algorithms under various traffic patterns. The saturation...
Multi-hop harvested wireless sensor networks (HWSN) face two challenges. First, each node must control its energy consumption through duty cycle adaptation to spend less energy than nodes obtain from the environment. Second, nodes must efficiently adapt topology so that packets use the most efficient paths towards the sink. In this paper, we address the challenges in the specific context of beacon-enabled...
Any path routing has been proposed as a new routing paradigm for enhancing the performance of Wireless Mesh Networks (WMNs) by exploiting the inherent broadcasting and spatial diversity properties of a wireless medium. This routing paradigm is based on a MAC protocol which provides an any cast transmission capability and therefore allows each node to send its packets to any candidate neighboring node...
One of the promising applications of wireless sensor networks (WSNs) is monitoring of the human body for health concerns. For this purpose, a large number of small sensors are implanted in the human body. These sensors altogether provide a network of wireless sensors (WBANs) and monitor the vital signs and signals of the human body; these sensors will then send this information to the doctor. The...
In Network-on-chip design two of the most important performance indices are the average delay of packets and power dissipation. The first depends on the level of congestion of the communication system, the second is strongly influenced by the power dissipated by the links of a network-on-chip (NoC) which accounts for a significant fraction of the overall power dissipated by the on-chip communication...
Providing better communication in UWSNs and maximize the communication performance is challenging issue due to volatile characteristics of underwater environment. Radio signal cannot properly propagate in underwater, so there is need, such type of acoustic modem technology that can supports better data rates and reliable underwater wireless communications. Further, nodes mobility, 3-D spaces brings...
With the fast development of wireless networks and wireless devices, the designing of effective routing algorithms considering intermittent connectivity and without end-to-end path is desirable. In this paper, we present a probabilistic delay routing (PDR) scheme that takes transmission delay, historical information of connection and prediction of future information of connection into consideration...
Radio equipped mobile devices have enjoyed tremendous growth in the past few years. We observe that in the near future it might be possible to build a network that routes delay-tolerant packets by harnessing user mobility and the pervasive availability of wireless devices. Such a delay-tolerant network could be used to supplement wireless infrastructure or provide service where none is available....
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