Tag Archive: 'ns3 project'
Application Service Providers (ASPs) may obtain resources from a number of cloud service providers (CSPs) in an attempt to improve latency and minimize operational expenses (OpEx). The CSPs may use management and control platforms, such as Open Stack and EC2 and the network service providers (NSPs) may use network management platforms, such as, Open Daylight. However, today the ASPs […]
The performance of wide area network (WAN) has a direct impact on user experience of cloud usage. In order to provide on-demand and performance-assured WAN connections, we design and implement a SDN-based system called Grace, which abstracts the underlying network resources into life-cyclenetwork services to provide the predefined network performance via open APIs.With the advantages of this system, we demonstrate that WAN […]
An IP address is used as a host identifier and a locator to bind hosts and applications to their location in existing Internet. Several protocols are proposed to eliminate this binding. Most of these protocols use IPv6-based host identifiers to maintain compatibility with existing Internet, but these identifiers cannot be handled by standard IPv6 routers […]
OFDM technique has wide usage in modern communication systems, it can offer efficient use of frequency spectrum and high service quality for users. In literature, there are some software definedradio implementations of OFDM technique. OFDMA technique that can deliver advantages of OFDM technique to multi-user and dynamic based systems is more important for modern communications systems. In […]
Availability-aware service provisioning tries to satisfy the availability requirements of clients on demand and can improve the resource efficiency in optical networks. This paper studies the problem of flexible availability-aware differentiated protection (ADP) in elastic optical networks (EONs). We first consider the unique features in EONs, e.g., flexible spectrum allocation and bandwidth-squeezed protection, describe the problem of ADP, […]
Wireless Body Area Network over Software Defined Radio (SDR) Platform is the solution towards providing ubiquitous wireless health monitoring of patients over Internet. In this paper, a system is designed to enable ECG signals to be compressed and communicated to remote server at regular intervals over SDR platform comprised of Wireless Open Access Research Platform boards. To enable this, a […]
This paper examines a possible vulnerability with the potential for a malicious entity to prevent a mobile device from handing over from a global system for mobile communications (GSM) to universal mobile telecommunications system (UMTS) network because the GSM network maintains the stand-alone dedicated control channel (SDCCH) uplink time slots. The process of testing this vulnerability requires the development […]
This paper presents the challenges and purpose of building the Traffic Engineering Database (TED) to facilitate Software Defined control of an Elastic Optical Network (EON). It explains how a standardized protocol and data model can facilitate this and describes a YANG model that has been developed to represent the TED including the representation of nodes, transponders, links, and available media […]
We experimental validated a Hierarchical Controlled Software Defined Networks Architecture for IP over Optical Transport Network. OpenDayLight is chosen as the basic SDN controller for our extensions. Our implementation includes interaction between controllers and three function module extensions inside OpenDayLight to control the optical network. An successful experimental of end to end dynamic connection establishment is […]
A software defined optical network based on multi-level WDM ring topology for intra data center switching is proposed. SDN-based unified control plane as well as the routing strategy are given, which make the control and management flexible. Analytical results show that the multi-level WDM ringnetwork structure has good scalability which can support about 256,000 servers under the assumption of each server […]
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