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Fully distributed handover based on SDN in heterogeneous wireless networks
Abstract
In this paper, we suggest about MIH (Media Independent Handover) supporting fully distributed handover in heterogeneous network based on Open vSwitch and OpenFlow. Although, personal mobile devices which are released recently have more than 2 mobile network interfaces, there is a small chance to utilize them simultaneously. To do this, MIH is suggested to guarantee the quality of application service when terminals of service users move to the other feature of wireless network in heterogeneous wireless network environment. Also, Open vSwitch of software type of various factors in SDN (Software Defined Network) and OpenFlow which has a control function by interacting with Data Path on network switch have arisen as a proposal to utilize wireless interfaces.
Thus, in this paper, we experimented changes in packet flow of wireless interfaces. Moreover, we suggest a method of MIH based on SDN to guarantee communication quality of devices which uses more than 2 wireless interfaces.
... The platform allows researchers to implement different mobility algorithms and run them concurrently in one OF-enabled network. Some preliminary solutions, introducing SDN clients on mobile endpoints, have been proposed [11] [19] [10] [21]. In [11] authors proposed a framework called meSDN extending SDN control to mobile clients. ...
... The authors discuss various use cases and services for software defined mobile cloud, and evaluate the proposed architecture using simulation. In [21] authors suggest the use of the Media Independent Handover (MIH) protocol [12] supporting fully distributed handover in heterogeneous networks based on Open vSwitch and OpenFlow. The work presented in [3] describes a per-application mobility management framework. ...
... The network-level component is required to manage and maintain OF-MMT's physical IP addresses, as well as to route physical packets in which the flow is tunneled. To perform a flow handover, a modified MIH protocol supporting SDN [21] is leveraged to provide the network information triggers to the PE to make the per-flow handover decision. Next, the decision is communicated to the Flow Manager, which in turn sends the request to the local SDN controller, for the flow handover execution to a new physical interface. ...
An intelligent network infrastructure is proposed to provide best user experience in a heterogeneous environment. This infrastructure, leveraging SDN, NFV, and cloud-based technologies, which play a key role in service differentiation at a very low granularity level, supports user session continuity, through seamless per-flow handovers, while implementing dynamic policy management schemes. The framework takes advantage of dynamic flow reconfiguration capabilities to enable mobility mechanisms based on physical to virtual address encapsulation and tunnelling executed by a simple flow table entry update. Policies may be defined by networks, users, devices, and applications, including also security-related policies. The proposed virtualized network infrastructure, using dynamic information from layer 2 and 3, along with the mobility mechanisms, and the policy-based logic make intelligent, context-aware decisions on how and when to use each network access, in what combination, and in a secure manner. This approach provides user and mobile node independence, from network and access technologies, rendering changes in network availability invisible to the user rather than leading to application failures, as they do today.
... Finally, Section VI summarizes the conclusions of this paper. [4] Horizontal STA-driven Reactive none [5] AP load balancing [6][7][8] AP-driven Reactive none [9][10][11][12][13] power control and STA association information [14,15] AP-STA link rate and STA throughput demand [16] Proactive current RSSI (location-aware) [5,9,[17][18][19][20] current and future RSSI (location and mobility-aware) none [21] throughput and load information [22] Decentralized Vertical STA-driven N/A [23] Horizontal AP-driven N/A [1,24,25] II. RELATED WORK Extensive research has been conducted to move the intelligence of the handover and AP selection to a centralized controller. ...
... The associated eNode gathers information about the user's previous QoE from neighboring eNodeBs, and thus makes the decision about user's re-association. Another decentralized approach is presented by Yi et al. [23], adopting Media Independent Handover (MIH) to support fully distributed handovers in heterogeneous networks based on Open vSwitch and OpenFlow. Their algorithm enables mobile terminals with more than two network interfaces to make decisions upon wireless technology themselves, but being controlled by an SDN controller during the whole process. ...
An important aspect of managing multi access point (AP) IEEE 802.11 networks is the support for mobility management by controlling the handover process. Most handover algorithms, residing on the client station (STA), are reactive and take a long time to converge, and thus severely impact Quality of Service (QoS) and Quality of Experience (QoE). Centralized approaches to mobility and handover management are mostly proprietary, reactive and require changes to the client STA. In this paper, we first created an Software-Defined Networking (SDN) modular handover management framework called HuMOR, which can create, validate and evaluate handover algorithms that preserve QoS. Relying on the capabilities of HuMOR, we introduce ABRAHAM, a machine learning backed, proactive, handover algorithm that uses multiple metrics to predict the future state of the network and optimize the AP load to ensure the preservation of QoS. We compare ABRAHAM to a number of alternative handover algorithms in a comprehensive QoS study, and demonstrate that it outperforms them with an average throughput improvement of up to 139%, while statistical analysis shows that there is significant statistical difference between ABRAHAM and the rest of the algorithms.
... The proposed framework is depicted in Fig. 4 SDWN integrated IEEE 802.21 MIH handover signaling and information exchange [15]. detects a new PoA nearby, handover is initiated and triggers MIH MN HO Candidate Query.request ...
Software Defined Networking (SDN) is the best
choice in establishing a software controlled inter-domain network.
Convergence of different Wireless link technologies bring the
mobile users to choose the network being in any geographical
location. IEEE 802.21 is such a standard for exchanging networking
information for connecting with the network being at
any region in the world. Integrated with SDN wireless network
this functionality of IEEE 802.21 standard can discover programmable
network services with profound resource utilization.
However, the information exchange should circulate through a
reliable source. Hence, the security analysis of IEEE 802.21 Media
Independent Handover (MIH) mechanism for Software Defined
Wireless Network (SDWN) is the primary concern of this research
work. This study, conducts architectural and functional analysis
of MIH integrated with SDWN interface for mobility management
of the wireless nodes. The outcome specifies a possible integration
with future deployment opportunities in information exchange of
IEEE 802.21 MIH for programmable network devices.
With the advent of OpenFlow, the concept of Software-Defined Networking (SDN) becomes much popular. In the past, SDN had often been used for network virtualization; however, with the rise of OpenFlow, which speeds up network performance by separating the control layer from the data layer, SDN can be further used to manage physical network facilities. Currently, some OpenFlow controller providers have already provided users with load balancer packages in their controllers for virtual networks, such as the Neutron package in OpenStack; nevertheless, the existing load balancer packages work in the old fashion that causes extra delay since they poll controllers for every new coming connection. In this paper, we use the wildcard mask to implement the load balance method directly on switches or routers and add a user prediction mechanism to change the range of the wildcard mask dynamically. In this way, the load balance mechanism can be applied conforming to real service situations. In our experiment, we test the accuracies of flow prediction for different predicted algorithms and compare the delay times and balance situations of the proposed method with other load balancers. With the popularity of cloud computing, the demand for cloud infrastructure also increases. As a result, we also apply our load balance mechanism on cloud services and prove that the proposed method can be implemented to varieties of service platforms.
The Network Functions Virtualization (NFV) extends the functionality provided by Software-Defined Networking (SDN). It is a virtualization technology that aims to replace the functionality provided by traditional networking hardware using software solutions. Thereby, enabling cheaper and efficient network deployment and management. The use of NFV and SDN is anticipated to enhance the performance of Infrastructure-as-a-Service (IaaS) clouds. However, due to the presence of a large number of network devices in IaaS clouds offering a plethora of networked services, there is need to develop a traffic monitoring system for the efficient network. This paper proposes and validates an extensible SDN and NFV-enabled network traffic monitoring system. Using extensive experiments, we show that the proposed system can closely match the performance of traditional networks at cheaper costs and by adding more flexibility to network management tasks.
Software defined networking (SDN) enables the network more flexible, open and programmable. However, as the network control and intelligence lay on the centralised controller, its security becomes even more important, and a minor change may have a direct crucial impact on the entire network. Numerous research results have shown that the SDN controller not only faces traditional security threats, but also has to tackle the challenges introduced by its unique centralised architecture. In this study, the authors present a novel SDN controller framework called mimic network operating system (MNOS). The main ideas behind MNOS are cyberspace mimic defence (CMD), which is proposed by academician Wu's team recently. By introducing the CMD into the design of SDN controllers, they come out with an N-variant controller framework with dynamic, heterogeneous and redundant characteristics. MNOS has a design-in security mechanism, its main features are: (i) effectively protects the controller from the attacks as hijacking and data modification without relying on prior knowledge of vulnerabilities; (ii) constantly monitors the behaviours of variants to detect unknown attacks; (iii) greatly improves the reliability of controllers. Theoretical analysis and experimental results show that MNOS can achieve considerable security gains and effectively improve security performance of SDN controller.
Seamless integration of wireless networks for secure mobile applications has increased interest in the research area of mobile cyber-enabled systems. Multi-objective handover needs to compensate the different quality of services provided by the wireless technologies. Notably, the recent works select only the performance perspective on the network to suffice user requirements. In mobile cyber-enabled systems, the security policies are essential while providing the ubiquitous connectivity. In this paper, a novel Optimized Vertical Handover (OVH) framework is proposed to optimize and secure the handover process and reduce the handover execution time significantly. This framework integrates IEEE 802.21 Media Independent Handover (MIH) and Software-Defined Networking (SDN) for seamless link establishment and agile network path reconfiguration. In the handover process, the network selection process is divided into two stages, such as pre-filtering and handover network selection. The pre-filtering eliminates the candidates with incompatible security capabilities using coarse and fine-grained methods. The network selection process utilizes the advantages of Manhattan and Chebyshev distance functions to feature the static and dynamic attributes during the handover. Among multiple factors, the OVH applies for compensation according to the network and mobile node states and improves the efficiency of the handover decision. Compared with the original VIKOR, the proposed OVH algorithm reduces the time complexity significantly through the periodic evaluation of dynamic attributes. Finally, the simulation results highlight that the OVH framework significantly reduces the handover delay and execution time.
Sensing and networking have been regarded as key enabling technologies of future smart vehicles. Sensing allows vehicles to be context awareness, while networking empowers context sharing among ambients. Existing vehicular communication solutions mainly rely on homogeneous network, or heterogeneous network via data offloading. However, today's vehicular network implementations are highly heterogeneous. Therefore, conventional homogeneous communication and data offloading may not be able to satisfy the requirement of the emerging vehicular networking applications. In this paper, we apply the software-defined network (SDN) to the heterogeneous vehicular networks to bridge the gaps. With SDN, heterogeneous network resources can be managed with a unified abstraction. Moreover, we propose an SDN-based wireless communication solution, which can schedule different network resources to minimize communication cost. We investigate the problems in both single and multiple hop cases. We also evaluate the proposed approaches using traffic traces. The effectiveness and the efficiency are validated by the results.
In this paper, we use a wildcard mask to implement the load balance method directly on switches or routers and add a user prediction mechanism to dynamically change the range of the wildcard mask, in this way, the load balance mechanism can be applied conforming to real service situations. In our experiment, we tested the accuracies of flow prediction with different prediction algorithms and compared the delay times and balance effects of the proposed method with other load balancers. With the popularity of cloud computing, the demand of cloud infrastructure also increases. As a result, we also applied our load balance mechanism on cloud services and have proven that the proposed method can be easily applied on varieties of service platforms.
In recent times, there have been a lot of efforts for improving the ossified
Internet architecture in a bid to sustain unstinted growth and innovation. A
major reason for the perceived architectural ossification is the lack of
ability to program the network as a system. This situation has resulted partly
from historical decisions in the original Internet design which emphasized
decentralized network operations through co-located data and control planes on
each network device. The situation for wireless networks is no different
resulting in a lot of complexity and a plethora of largely incompatible
wireless technologies. The emergence of "programmable wireless networks", that
allow greater flexibility, ease of management and configurability, is a step in
the right direction to overcome the aforementioned shortcomings of the wireless
networks. In this paper, we provide a broad overview of the architectures
proposed in literature for building programmable wireless networks focusing
primarily on three popular techniques, i.e., software defined networks,
cognitive radio networks, and virtualized networks. This survey is a
self-contained tutorial on these techniques and its applications. We also
discuss the opportunities and challenges in building next-generation
programmable wireless networks and identify open research issues and future
research directions.
To satisfy increasing mobile data requirement of mobile devices, WLAN can be considered as one of best complementary access technologies for cellular. WLAN can support high data rates but have limited service coverage, bringing about more handover situation. So Handover management is still one of the key challenging subjects to be solved for service continuity in wireless network. In this paper, we propose an efficient handover scheme for seamless connectivity in wireless LAN environments by IEEE 802.21 MIH respect. We assume that the mobile node can decide the best target network when considering signal strength with next candidate network information which received from MIH Information server. Proposed scheme was evaluated in real environment which consists of WLAN APs, and demonstrate that it can provides seamless connectivity.
Recently there has been much effort, in both academia and industry, to integrate a plethora of wireless technologies in order to provide ubiquitous broadband access to mobile users. Handover management is still one of the most challenging issues to be solved for seamless integration of wireless networks. This article addresses the integration of IEEE 802.11 WLANs and IEEE 802.16 WMANs, focusing mainly on the handover management aspects. First, we describe architectures, futuristic application scenarios such as the envisioned heterogeneous multihop wireless networks (HMWNs) and moving networks, as well as the related research issues. Second, we present IEEE 802.21, a new emerging standard aimed at providing a framework for media-independent handover(MIH) among heterogeneous networks. Finally, we discuss how the MIH framework can help handover management for the integrated network.
Proposal, Management of the Legacy Network Environment using OpenFlow Control Plane
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Anatomy of an open source cloud
- Tim Jones
Media Independent Handover Service , IEEE Std . 802.21, 2009 . IEEE Standard for Local and metropolitan area networks- Part 21: Media Independent Handover Service
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