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In this article, we consider software-defined wireless sensor networks (SDWSNs) and propose a scheme for sleep scheduling with low control overhead-based flow-entry in flow-table to overcome the limitation of control traffic in SDWSNs.
The recent years realize a progressive transition where fixed computing reached maturity and the mobility age started to thrive. Nowadays, another transition from the mobility age to the “Internet of Everything” (IoE) is taking place. In the IoE vision, several types of quotidian objects will be able to communicate over the Internet. As a result, it is expected that within a decade, IoE will have...
It is foreseeable that in the near future any object will have an Internet connection - this is the Internet of Things vision. All these objects will be able to exchange and process information and all information will be accessible from Internet. Some of these objects, with wireless support, are characterized by small size, power constrains and small computing resources. Connecting such devices to...
Visualization tools make it easier for users to observe the status of the wireless sensor networks (WSNs). So far, developers of WSNs have created various visualization tools under certain project/research backgrounds. These tools, however, are limited in certain application scenarios, since the underlying packet formats are hard coded into the programs. For this purpose, we present NetViewer, a universal...
This paper investigates the radio irregularity (RI) phenomenon and its impact on communication performance in wireless sensor networks (WSNs). Based on the theoretical analysis, we find that the RI phenomenon induces the asymmetric links problem. According to this discovery, we propose a novel HCT (Hop-count Correction Tree) scheme to handle this problem. HCT utilizes graph theoretical method to get...
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