Filling the gap between Software Defined Networking and Wireless Mesh Networks

Nascimento, Vagner; Moraes, Marcelo; Gomes, Rosivaldo; Pinheiro, Billy; Abelém, Antônio; Borges, Vinicius C. M.; Cardoso, Kleber Vieira; Cerqueira, Eduardo

doi:10.1109/cnsm.2014.7014211

Cited by 22 publications

(10 citation statements)

References 4 publications

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“…Another widely regarded approach for the configuration of interfaces in SDWMN is using mesh protocols like OLSR, B. A.T.M.A.N. or 802.11s to handle the configuration in a distributed manner [22,37,45]. The usage of SDN alongside a distributed mesh protocol on the wireless switches, is according to [11], a hybrid approach.…”

Section: Related Workmentioning

confidence: 99%

“…Ref. [45] extends the OF protocol capabilities with messages specifically dedicated to this issue. The authors in [51] describe that current SDN software components rely on point-to-point communication.…”

Section: Section B: Computer and Communications Network And Systems mentioning

confidence: 99%

“…However, this process involves a communication between the OLSR daemon and the OF daemon on the wireless nodes. The authors in [45] work with 802.11 dual-radio routers. In their approach, one wireless interface operates in the 802.11s mesh mode and is solely used as a control channel interface.…”

Section: Related Workmentioning

confidence: 99%

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Software-Defined Wireless Mesh Networking: Current Status and Challenges

Rademacher¹,

Jonas

Siebertz

et al. 2017

The Computer Journal

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The combination of Software-Defined Networking (SDN) and Wireless Mesh Network (WMN) is challenging due to the different natures of both concepts. SDN describes networks with homogeneous, static and centralized controlled topologies. In contrast, a WMN is characterized by a dynamic and distributed network control, and adds new challenges with respect to time-critical operation. However, SDN and WMN are both associated with decreasing the operational costs for communication networks which is especially beneficial for internet provisioning in rural areas. This work surveys the current status for Software-Defined Wireless Mesh Networking. Besides a general overview in the domain of wireless SDN, this work focuses especially on different identified aspects: representing and controlling wireless interfaces, control-plane connection and topology discovery, modulation and coding, routing and load-balancing and client handling. A complete overview of surveyed solutions, open issues and new research directions is provided with regard to each aspect.

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Section: Related Workmentioning

confidence: 99%

Section: Section B: Computer and Communications Network And Systems mentioning

confidence: 99%

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Software-Defined Wireless Mesh Networking: Current Status and Challenges

Rademacher¹,

Jonas

Siebertz

et al. 2017

The Computer Journal

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“…However, a single controller may compromise the reliability of the network, as this fault tolerance must also be considered while adjusting the SDN paradigm [12]. Network operators can implement different QoS policies while keeping user and application requirements in view [17,18]. Our proposed solution, SDNMesh presents an SDN based twostage routing architecture, where the first phase finds the initial route from controller towards switches and the second phase does optimization of the inefficient routes found from the first phase.…”

Section: Introductionmentioning

confidence: 99%

SDNMesh: An SDN Based Routing Architecture for Wireless Mesh Networks

et al. 2020

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Software Defined Networking (SDN) has been seen as a revolutionary and exciting network technology that aims to enable control and network management of various network types, whether wired or wireless. Nevertheless, SDN research focuses very little on wireless communication and, more specifically, on Wireless Mesh Networks (WMNs). Moreover, the issue of routing is vitally important in WMNs, but the legacy and traditional routing protocols cannot make the most of multiple paths between the source node and destination node due to the complexity and cost of the network. In this paper, we present SDNMesh, an SDN based routing architecture for WMNs. We combine SDN with WMN to allow mesh networks to meet current user requirements with several resources, coverage, and scalable high bandwidth capability. Apart from the mentioned capability, SDN's unified approach leads to better network capacity management. Experiments have been carried out using the Mininet-WiFi simulation tool to create a network environment that allows integration of the two networking paradigms, centralized, and decentralized. Simulation results show that our SDNMesh routing solution performs better in terms of network performance metric throughput, packet loss ratio, and delay while comparing with traditional routing approaches such as OLSR, BATMAN, and an SDN based Three-Stage routing protocols. Moreover, experimental results show that SDNMesh gives better results in terms of the mentioned performance metrics.

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“…• Nascimento et al [101] proposed to add additional extensions to the current OpenFlow protocol in order to make it compatible with WMNs. These extensions involved adding new rules to the flow table, adding a new message to the OpenFlow protocol, and changing the packet header to include IEEE 802.11 MAC headers.…”

Section: Software Defined Wireless Mesh Networkmentioning

confidence: 99%

Towards Software Defined Wireless Mesh Networks

Pakzad¹

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Software Defined Networking (SDN) is a new approach to configure and manage computer networks, based on its core idea of separating the data plane from the control plane. Through this, SDN provides a higher level of abstraction and allows better and simpler programmability and management of networks, thereby enabling faster innovation. The benefits of SDN have clearly been demonstrated for wired networks, in particular for wide area and data centre networks. The goal of this research was to explore how the concepts of SDN can be applied to wireless networks, in particular Wireless Mesh Networks (WMNs). The focus of our research was on exploring the feasibility of SDN-based routing and load balancing of traffic in WMNs. For this, we leveraged key SDN features such as centralised view of the network state, fine grained and flow-based traffic forwarding, and abstraction. Working towards this goal, we have addressed a number of key research challenges. Firstly, we have designed and implemented a new topology discovery mechanism with greatly reduced overhead compared to the state-of-the-art approach. Topology discovery is an essential service in any Software Defined Network, but an efficient mechanism with low overhead is particularly important for typically resource constrained WMNs. Another critical component for SDN-based routing in WMNs is link monitoring, in particular link capacity monitoring. In contrast to wired networks, where the link capacity is typically known and constant, it can be highly dynamic in wireless networks. We have designed, implemented and evaluated a new, SDN-based link capacity estimation approach, based on the concept of packet pair/train probing. Building on our topology discovery and link capacity estimation methods, we have developed a new SDN-based routing framework for WMNs. For this, we have leveraged a new northbound interface called SCOR (Software-defined Constrained Optimal Routing) for QoS routing and Traffic Engineering (TE). Using the abstraction provided by a small number of high level SCOR routing primitives, we have demonstrated the feasibility, simplicity and efficiency of this approach to implement relatively complex routing problems in WMNs. Finally, we have also provided critical evaluations of new potential testbeds for the evaluation of SDN-based WMNs. We believe this is an important contribution in its own right, since experimental validation is a key research methodology in this context, and trust in the validity of experimental results is absolutely critical.

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Filling the gap between Software Defined Networking and Wireless Mesh Networks

Cited by 22 publications

References 4 publications

Software-Defined Wireless Mesh Networking: Current Status and Challenges

Software-Defined Wireless Mesh Networking: Current Status and Challenges

SDNMesh: An SDN Based Routing Architecture for Wireless Mesh Networks

Towards Software Defined Wireless Mesh Networks

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