An extended SDN controller for handover in heterogeneous wireless network

Nguyen-Duc, Toan; Kamioka, Eiji

doi:10.1109/apcc.2015.7412534

Cited by 16 publications

(7 citation statements)

References 8 publications

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“…Note that the feature of switching between the activated wireless interface and the backup one without disturbing the running application has been introduced in [17]. Different from the proposed system in [17] which mainly focused on the handover execution procedure, here, when and how the handover is triggered is discussed more concretely. The algorithm for triggering the energy-efficient vertical handover is given in Fig.…”

Section: Energy-efficient Communication Modementioning

confidence: 99%

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An SDN Approach for an Energy Efficient Heterogeneous Communication Network in Disaster Scenarios

Nguyen-Duc¹,

Kamioka²

2016

IJWMN

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Wireless access technologies have been extensively developed aiming to give users the ability to connect to their expected networks anytime, anywhere. This leads to an increment of the number of wireless interfaces integrated into a single mobile device, hence, it allows the device to be able to connect to multiple access networks. However, in some specific cases such as natural disasters, having an uncorrupted and timely information exchanging means is critical for affected victims to survive or to connect to the outside world. This is because the essential network infrastructures in these cases could be destroyed causing a large number of systems to stop working. In that cases, the victims need a heterogeneous communications network in which they can communicate, without a doubt, by using different wireless access technologies, i.e., Bluetooth or Wi-Fi. The network must also be able to smoothly change the access technologies, or called a vertical handover, to ensure QoS for ongoing applications. In addition, the network must have a mechanism to save energy. For these reasons, an SDN approach, which has been proposed in a previous work, is considered. The performance of the system has been validated by a set of experiments in a real testbed. The obtained results show that the proposed vertical handover can save at least 24.42 per cent of the energy consumed by the wireless communication. The handover delay with different UDP traffic is less than 150ms. Moreover, the network allows a device using Bluetooth to talk with another one using Wi-Fi over a heterogeneous connection where the end-to-end jitter is mainly below 20ms and the packet loss rate is as small as 0.2 per cent.

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Section: Energy-efficient Communication Modementioning

confidence: 99%

“…The extended-SDNC is designed to cover all requirements for disaster situations, described in the previous section. Different from the former design [17], the new design has three new components named "Flow rules", "Connection manager" and "Information manager" as shown in Fig. 2.…”

Section: The Extended Sdn Controller Designmentioning

confidence: 99%

An SDN Approach for an Energy Efficient Heterogeneous Communication Network in Disaster Scenarios

Nguyen-Duc¹,

Kamioka²

2016

IJWMN

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“…The switch operates based on the rules defined by the original controller. The original controller here is a conventional SDN controller, which follows the specification given by the Open Networking Foundation [16]. Since the original controller is basically designed in a centralized manner in which it has a global view of the network topology, and thus it can provide rules for the switch easily.…”

Section: An Extended Sdn Controller For Vertical Handovermentioning

confidence: 99%

An Energy-Efficient Mobile-Controlled Vertical Handover Management for Real Time Services

Nguyen-Duc¹,

Kamioka²

2016

JCC

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Multiple wireless access technology has been embedded into a single mobile device as a fundamental feature, aiming to give end users ubiquitous access at any time. To allow the users to enjoy the ubiquitous connectivity, the mobile device has to consume higher energy for the simultaneous activation of multiple wireless interface and the continuous connectivity. In addition, a seamless vertical handover between the access technologies is a mandatory requirement to insure the quality, reliability and continuity of real time services. In this paper, the continuity of real time services as well as energy saving for mobile devices has been taken into account. The conceptual idea is that whenever traffic rate is lower than a threshold it will be smoothly handed over to a low energy consumption technology, i.e., Bluetooth. When the traffic exceeds the limitation of Bluetooth bandwidth, it will be handed over to a wider bandwidth technology, i.e., Wi-Fi. In the considered scenarios, the technologies are not interconnected; hence, the vertical handover management must be fully controlled by the mobile devices. The performance of the system including energy saving and maintaining the continuity of real time services has been evaluated by direct measurements in a real testbed.

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“…To perform a vertical handover automatically under required QoS parameters without any external network devices, our distributed SDN system [17] seems to be a promising solution. In the proposed system, an extended SDN controller has been developed and embeded in each device to collect the network state and to feed it to the main SDN controller.…”

Section: Introductionmentioning

confidence: 99%

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2016

IJWMN

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An extended SDN controller for handover in heterogeneous wireless network

Cited by 16 publications

References 8 publications

An SDN Approach for an Energy Efficient Heterogeneous Communication Network in Disaster Scenarios

An SDN Approach for an Energy Efficient Heterogeneous Communication Network in Disaster Scenarios

An Energy-Efficient Mobile-Controlled Vertical Handover Management for Real Time Services

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