7 research outputs found
Software-defined mobility management: Architecture proposal and future directions
A common characteristic for all of the uses in 5G wireless networks is the ubiquity and the almost permanent connection to the mobile network to get access to external applications. This really imposes a challenge in the signaling procedures provided to get track of the user and to guarantee session continuity. The mobility management mechanisms will play a central role in the 5G networks because of the always-on connectivity demand. This article presents a software defined approach to mobility management procedures addressing the present challenges and proposing some future directions for a more efficient service provision and a better usage of the network resources. The feasibility of such a Software-Defined Mobility Management architecture is assessed in a specific test-bed
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Simulation and Performance Analysis of Software-Based Mobile Core Network Architecture (SBMCNA) using OMNeT++
Abstract— Software defined Networking (SDN) represent the
future framework for the mobile networks. This paper discusses
the required modifications within the EPC in order to overcome
some of the limitations of the current EPS, these modifications
include introducing an SDN based solution Software Based
Mobile Core Network Architecture (SBMCNA), we also show
that Openflow protocol 1.3 has been extended to develop two
methods to support GPRS Tunnelling Protocol (GTP) operations.
The use of an intelligent Forwarding device (FD) were proposed
to reduce the signalling load. SBMCNA were built on OMNeT++
by extending simuLTE [12] and Openflow 1.3 [13] modules. Load
balancing and resiliency were used to demonstrate the capability
of the proposed system to reduce the signalling load. The
preliminary results of the system performance are presented
A study into scalable transport networks for IoT deployment
The growth of the internet towards the Internet of Things (IoT) has impacted the way we live. Intelligent (smart) devices which can act autonomously has resulted in new applications for example industrial automation, smart healthcare systems, autonomous transportation to name just a few. These applications have dramatically improved the way we live as citizens. While the internet is continuing to grow at an unprecedented rate, this has also been coupled with the growing demands for new services e.g. machine-to machine (M2M) communications, smart metering etc. Transmission Control Protocol/Internet Protocol (TCP/IP) architecture was developed decades ago and was not prepared nor designed to meet these exponential demands. This has led to the complexity of the internet coupled with its inflexible and a rigid state. The challenges of reliability, scalability, interoperability, inflexibility and vendor lock-in amongst the many challenges still remain a concern over the existing (traditional) networks. In this study, an evolutionary approach into implementing a "Scalable IoT Data Transmission Network" (S-IoT-N) is proposed while leveraging on existing transport networks. Most Importantly, the proposed evolutionary approach attempts to address the above challenges by using open (existing) standards and by leveraging on the (traditional/existing) transport networks. The Proof-of-Concept (PoC) of the proposed S-IoT-N is attempted on a physical network testbed and is demonstrated along with basic network connectivity services over it. Finally, the results are validated by an experimental performance evaluation of the PoC physical network testbed along with the recommendations for improvement and future work
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Application Layer Firewall Using OpenFlow
Security is one of the most important aspects in networking. Companies and service providers spend much money on expensive firewalls to enforce security. Software-Defined Networking (SDN) is a new architecture that can save companies and service providers money, reduce provisioning time from weeks to minutes, provide centralized management, promote innovation, and allow programmability. SDN achieves this by decoupling the control plane from the data plane. This paper demonstrates the benefits of implementing an application layer firewall using OpenFlow protocol, which is one way of implementing SDN. The firewall is capable of detecting application layer traffic, such as BitTorrent and YouTube, and of preventing some Denial-of-Service Attacks. This paper discusses the implementation details and provides a performance analysis of the firewall module