Taewan You

Multipath transmission architecture for heterogeneous wireless networks

As growth of network technology and device technology, smart devices equipped multiple network interfaces now are increasingly emerging, and also these are able to communicate with other devices and services using the multiple networks simultaneously. Currently, transmission method using concurrent multiple paths has been studied in IETF, however there are several problems for performance degradation when traffic flows are transmitted through multiple paths over wireless networks. For instance, mobile user moving fast to different wireless network is occurring to frequently re-establish new sub-paths, so that overall throughput could be degraded even though communication session is maintained. Therefore, the paper identifies above problems and introduces new multipath transmission support architecture for heterogeneous wireless networks. The architecture introduces a novel entity ‘Multipath Anchor (MA)’, which supports not only multipath transmission but also deployabiliy by proxing and relaying packets to the receiver. Basic transmission process and handover process are describes. And we also discuss about deployment issues to realize the architecture, so MA can be installed by 3rd party. In the future works, the architecture will be implemented based on NetFPGA, and scheduling and traffic division policy will be proposed.

A qualitative analysis of MOFI, LISP, and HIP

MOFI that is one of famous future Internet architecture projects in Korea basically pursuits ID based communication based on the ID/Loc separation structure. And MOFI has few architectural similarities to LISP and HIP. So, firstly this paper is trying to compare MOFIs architectural features with LISP and HIP in various perspectives. And then the paper evaluates MOFIs features through these comparisons. Finally we show that MOFI has been designed uniquely to be considered in mobility as well as evolvability and innovation perspectives.

Qualitative analysis of mapping systems in the Internet architectures based on identifier/locator separation

The current Internet has several known challenges, such as routing scalability, mobility, multihoming, traffic engineering, etc. due to the overloaded semantics of IP address, i.e. it is used as a node identifier (ID) and a node locator (LOC). Thus, the research community has redesigned the Internet architecture based on ID/LOC separation to overcome the limitations of the current Internet. In all Internet architectures based on ID/LOC separation, ID to LOC mapping system is necessarily required to bind ID and its LOC, since ID is no longer dependent to its LOC logically or physically. Thus, how to design the mapping system is a key challenge in ID/LOC separation architecture. In this paper, we analyse qualitatively the mapping systems proposed in ID/LOC separation architectures to provide insights into designing a new mapping system. The main contribution in this paper is that we categorise ID to LOC mapping systems according to the mapping server structure and provide the pros and cons of the mapping systems belonging to each category. Based on our qualitative analysis, we also examine intuitively if the mapping systems in each category satisfy their requirements.

Enabling SDN Experimentation with Wired and Wireless Resources: The SmartFIRE Facility

Over the last few years, several experimentation platforms have been deployed around the world, providing to the computer science research community a way to remotely perform and control networking experiments. Most of the platforms, called testbeds, offer experimentation as a service. However, each testbed is specialized in a specific technology: wired, wireless or cloud. The challenge for experimenters is thus to combine different technologies in order to tackle the research questions they address. Therefore a federation framework has been developed thanks to several projects, including SmartFIRE. SmartFIRE is an intercontinental federation of SDN, wireless and cloud testbeds, aiming at providing experimentation services with resources from these various networking fields. This federation framework enables easy experimentation with the heterogeneous resources that the individual testbeds provide. In this article, we present our contributions towards the extension of the state-of-the-art control and management framework, in order to orchestrate the federated SmartFIRE facility. As a proof of concept, we demonstrate several use cases that take advantage of our contributions, providing the availability of experimentation on novel architectures.

Toward the future of internet architecture for IoE: Precedent research on evolving the identifier and locator separation schemes

Internet has been being becoming the most famous and biggest communication networks as social, industrial, and public infrastructure since Internet was invented at late 1960s. In a historical retrospect of Internets evolution, the Internet architecture continues evolution repeatedly by going through various technical challenges, for instance, in early 1990s, Internet had encountered danger of scalability, after a short while it had been overcome and successfully evolved by applying emerging techniques such as CIDR, NAT, and IPv6. Especially this paper emphasizes scalability issues as technical challenges with forecasting that Internet of things era has come. Firstly, we describe the Identifier and locator separation scheme that can achieve dramatically architectural evolution in historical perspective. Additionally, it reviews various kinds of Identifier and locator separation scheme because recently the scheme can be the major design pillar towards future of Internet architecture such as both various clean-slated future Internet architectures and evolving Internet architectures. Lastly we show a result of analysis by analysis table for future of internet of everything where number of Internet connected devices will growth to more than 20 billion by 2020.

Exploiting in-network functions enabling SDN for evolving future internet architecture

This paper presents evolving Future Internet Architecture to exploit in-network functions as realizing basic Identifier and locator separation scheme, which is a notable design principle for most of Future Internet Architecture. First of all, software-centric in-network functions, such as identifier and locator separation, network model, and etc. motivated from MOFI, can be implemented and managed by SDN. Concretely these functions are realized in specific MOFI entities and functions such as ARs and GWs, since SDN enables easy management to be instantiated dynamically by logically centralized controller, and these functions can be easily utilized in two different ways. First is that these functions are installed to real entities as non-virtualization manner. Secondly these functions can be easily implemented as virtual machine, so that virtual in-network functions can be easily deployed to new networks on-demand. To verify the in-network functions, this paper presents two evolving architectures by applying in-network functions such as the domain based internetworking architecture and future datacenter network architecture.