Abstract
Energy efficiency has always been a hot issue in wireless sensor networks. A lot of energy-efficient algorithms have been proposed to reduce energy consumption in traditional wireless sensor networks. With the emergence of software-defined networking, researchers have demonstrated the feasibility of software-defined networking over traditional wireless sensor networks. Thus, energy-efficient algorithms in software-defined wireless sensor networks have been studied. In this article, we propose an energy-efficient algorithm based on multi-energy-space in software-defined wireless sensor networks. First, we propose a novel architecture of software-defined wireless sensor networks according to current research on software-defined wireless sensor networks. Then, we introduce the concept of multi-energy-space which is based on the residual energy. Based on the novel architecture of software-defined wireless sensor networks and the concept of multi-energy-space, we give a detailed introduction of the main idea of our multi-energy-space-based energy-efficient algorithm. Simulation results show that our proposed algorithm performs better in energy consumption balance and network lifetime extension compared with the typical energy-efficient algorithms in traditional wireless sensor networks.
Highlights
Wireless sensor networks (WSNs) are gaining more and more attentions because of the boom of application fields as well as the development of sensor and wireless communication techniques
The details of our novel software-defined wireless sensor networks (SDWSNs) architecture, which fully considered the particularity of traditional WSNs and the superiority of softwaredefined networking (SDN), were introduced
On the basis of SDWSN architecture, a multi-energy-space-based energy-efficient algorithm, which took the residual energy of sensor nodes into consideration, was presented
Summary
Wireless sensor networks (WSNs) are gaining more and more attentions because of the boom of application fields as well as the development of sensor and wireless communication techniques. Sensor node, the types of services are limited In consideration of these features, we analyze the feasibility of applying SDN in WSNs. SDN is first designed to improve the management of wired networks such as data centers.[26] The network is divided into two planes, control plane and data plane, making the programmable network switches in data plane simple forwarding devices. In WSNs, sensor ditional routing protocols to deal with the node mobinodes are usually equipped with limited energy lity problem This approach is against the and randomly deployed in the monitoring principle of centralized control mechanism. The topology discovery algorithm is a distributed algorithm which is against but necessary for the paradigm of SDWSNs. The algorithm processes are different in the controller and the sensor nodes.
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