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Software-Defined Networking (SDN) has been envisioned as a way to reduce the complexity of network configuration and management, enabling innovation in production networks. While SDN started focusing on wired networks, there were proposals specifically for Wireless Sensor Networks (WSN), but all of them required a single controller to be coupled to the sink. This paper presents TinySDN, a TinyOS-based...
With the development of industrialization and informationization, especially with the rising of Internet of Things, wireless sensor network (WSN) has being used in more and more fields. In this paper, a manufacturing Sensor Network Based on Multi-Radio and Multi-Channel (MR-MC) has been proposed. Firstly, the characteristics of the manufacturing network has been analyzed, and then state the new proposed...
The attractive features of wireless sensors based ZigBee and IEEE 802.15.4 standard such low cost, flexibility, scalability, and multiple usages contribute to spread it in many trends. The network of wireless sensors which is to be considered in this research deals with fixed and mobile wireless sensors and treated with mesh and tree topologies. This paper takes up the effect of Acknowledgement technique...
In this paper, a MR-MC (Multi-Radio and Multi-Channel) network architecture based on nested cellular topology structure has been proposed on account of the characteristics of sensor network and manufacturing environment. Sensor nodes adopt single radio to communicate within subnet formed by the router chosen according to the strength of wireless signal received from it. The neighboring subnets use...
Opportunistic routing (OR) takes advantage of the broadcast nature and spatial diversity of wireless transmission to improve the performance of wireless ad-hoc networks. Instead of using a predetermined path to send packets, OR postpones the choice of the next-hop to the receiver side, and lets the multiple receivers of a packet to coordinate and decide which one will be the forwarder. Existing OR...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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