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The problem of ensuring virtual network (VN) connectivity in presence of multiple link failures in the substrate network (SN) is not well investigated in Network Virtualization (NV) literature. We name this problem as Connectivity-aware Virtual Network Embedding (CoViNE). Solving CoViNE will enable a VN operator to perform failure recovery without depending on the SN provider, similar to the IP restoration...
With the evolution of software-defined networking (SDN) paradigm, traffic management in data center networks has become flexible and scalable. The existing solution using OpenFlow, the rate-guaranteeing mechanism, is inefficient as it limits the rate of the flows by dropping batches of packets to achieve the desired throughput. In this paper, we propose BASIS, a solution based on Bayesian inference...
In today's modern cloud supported applications, the traffic relies on both congestion-responsive transport protocols like TCP and congestion-oblivious transport like UDP including all their variations. As bandwidth is not totally virtualized in today's data centers, the diverse responses of these protocols to congestion lead to inefficiencies and service disruption to some applications. In this paper...
Information-Centric Networking (ICN) is a novel paradigm for future Internet architectures. The aim of ICN is to accommodate content distribution within the Internet infrastructure. Named Data Networking (NDN) is one of the most popular ICN proposal. This paper presents a design of QoS-FS, a new NDN's adaptive forwarding strategy with quality of service (QoS). At each node of the network, QoS-FS monitors,...
In this paper, we investigate collaborative schemes to mitigate Distributed Denial of Service attacks in multi-domain Software Defined Networks (SDNs). The mitigation process itself is distributed, initiated by the domain of the victim, and involving all domains in the path of an attack (transit domains). We emphasize on filtering malicious flows as close to the attack sources as possible. We propose...
The era of Data Centers is underway. Cloud is an off-premise form of computing that stores data on the Internet, whereas a data center refers to on-premise. For cloud-hosting purposes, vendors also often own multiple data centers in several geographic locations to safeguard data availability during outages and other data center failures. Data replication and synchronization techniques have recently...
Internet of Things (IoT) devices is getting increasingly popular in every aspect of life. From health care monitors, activity/sleep trackers to industry/home automation, IoT devices and system-on-chip (SoC) have huge research potential. This paper presents a new memory interface intellectual property (IP) developed for interfacing IoT SoC with storage class memory or non-volatile memory (NVM). So...
Nowadays mobile video streaming services become very popular. However, due to the drastic bandwidth fluctuation in a mobile network, the quality of the mobile video streaming degrades significantly. Above all, mobile users are not happy when video image freezes for a few seconds/minutes. Most of current video streaming services are working as an OTT (over the top) service, which means a mobile network...
Video streaming is becoming more and more popular technology for media content delivery over the Internet Dynamic Adaptive Streaming over HTTP (DASH) allows delivering data streams to a user with the highest possible bit rate in varying bandwidth conditions which is particularly significant for hopping communication channels present in wireless networks. This paper investigates the delivery of media...
Ubiquity of applications supporting the networked society demands an efficient communication system to support Machine Type Communication (MTC) devices. The current architecture is not optimized for MTC traffic patterns and therefore, may lead to excessive signaling. In this paper, we propose a simplified approach to wireless connectivity to cope with the requirements of Massive MTC devices. The essence...
It is obvious that Computer networks are plagued by Internet worms during last years. These worms has bad influence on the quality of internet services. Better development of worms filters is based on a complete vision of its behavior and methods of its spread. Moreover, reactions to attempted infections may slow down the highly infection rate of internet worms. Different factors affect the spread...
Non-standardized scan interface within and across system-on-chips (SoCs) limits test-data reuse for intellectual properties (IPs). To overcome this limitation, we present a flexible and dynamic scan interface architecture that enables reuse of test-data for a given IP across SoCs with different scan pin configurations. The dynamic nature of this architecture also enables variable shift frequencies...
For the differences of design capacity and production ability about System-on-Chip(SoC), we propose a new design on HDTV video decoder SoC platforms, which can integrate a variety of IP cores, such as the MIPS processor IP, video processor IP, HDTV video Decoder IP, USB2.0IP, memory IP, etc. Each IP core can be connected through its independent dedicated interface and SoC platform. We can manage the...
The Internet of Things (IoT) is the next generation technology which is expected to bring a major revolution in the art of creating smarter environments. In order to uniquely identify each device in smart environment, a new protocol using IPv6 over Low-power Wireless Personal Area Network (6LoWPAN) has been developed which supports management of sleep cycles of device for power management. However...
As the number of Electronic Control Unit increased in automotive system, its memory capability and functionalities have also increased in large scale. These large number of high functional Electronic Control Units (ECU) in vehicle system demand for high data rate connectivity to external network and within in-vehicle network. This high data rate requirement lead to the introduction of Ethernet Technology...
The amount of services located in the network has drastically increased over the last decade which is why more and more datacenters are located at the network edge, closer to the users. In the current Internet it is up to the client to select a destination using a resolution service (Domain Name System, Content Delivery Networks). In the last few years, research on Information-Centric Networking (ICN)...
The amount of services located in the network has drastically increased over the last decade which is why more and more datacenters are located at the network edge, closer to the users. In the current Internet it is up to the client to select a destination using a resolution service (Domain Name System, Content Delivery Networks). In the last few years, research on Information-Centric Networking (ICN)...
This paper investigates the characteristics of Tahoe, Reno, New Reno, Vegas, and Sack, and calculated their throughputs in simulated environment using NS-2 simulator by varying various performances parameters such as bandwidth, simulation time and number of traffic sources in order to figure out which one of them is the best for which scenario. Simulation was performed to study the performance of...
Nowadays point to point communication have been drawing a lot of interest, because in this it communicate at specific place as per our choice at a time so that all signal will go in one direction which avoid wastage of signal which spread in all direction. ISM (Industrial, Scientific and Medical) band is a part of the radio spectrum that can be used for many purposes without a license. It is also...
The aim of this research is to enhance the performance of a traditional Open Shortest Path First (OSPF) routing protocol network by adding some features of the Software Defined Networking (SDN) in a modified approach to improve some network's performance metrics like link congestion and bandwidth utilization. The improvement of those metrics leads to an improvement in the total throughput of the network...
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