A wireless multihop network (WMN) is set of wirelessly connected nodes without an aid of centralized infrastructure that can forward any packets via intermediate nodes by a multihop fashion. In the WMN, there are still some issues that need to be ...

• Proposing a novel fDRL scheme to optimize network capacity and reduce computation time in WMNs;
• Using the FG approach, the fDRL scheme selects the best root node and reduces DRL computation time; and
• Applying NLC to data ...

Cybersecurity training is a key endeavour for ensuring that the IT workforce possess the knowledge and practical skills required to counter the ever-increasing cybersecurity threats that our society is faced with. While some related systems, such ...

Given the typical complexity of networked systems in terms of number of components and their interconnections, manually designing their architecture is inherently difficult, and the design process requires expert knowledge and skills. ...

Full-duplex (FD) wireless communication improves the attainable spectral efficiency of the wireless network with the simultaneous transmission and reception over the same frequency channel at a single timeslot. However, the effect of ...

• Cooperative mixture of concurrent and sequential transmission (MCST) scheme
• ...

As the Internet of Things (IoT) becomes more and more pervasive, encompassing many aspects of our daily life, the issue of how much the IoT systems can be trusted is critical. However, the multitude of recent incidents that were caused by or somehow ...

Design and management of networked systems, such as Information Technology/Network (IT/NW) or IoT systems, are inherently complex. Moreover, the need to adhere to security requirements adds even more complexity, as the manual audit and security ...

Cybersecurity is no longer an issue discussed only between the professionals or technologists, but it is also closely related to ordinary people whose daily life is exposed to kinds of cyberattacks. And Womabat Security Technologies conducted a ...

In this paper, we propose a feeling-sharing system called PICALA, which can register the feelings of audiences during public presentations. We designed and implemented a system in which the colors of the light bulbs near the screen changed by clicking ...

With the growing demands of wireless applications and mobile data connections, wireless communication is expected to provide the ever-increasing demand for higher data rate and efficient data communication. Energy is also one of the hot issues needed to ...

A physical-layer network coding approach, compute-and- forward based on nested lattice code (NLC), is considered for multi-source multi-relay networks. This paper proposes a design of overlapped chunked code (OCC) which is applied before NLC, which we ...

Conformance testing is a formal approach for checking the validity of an implemented system against its specification. This paper adopts it to comprehensively check the conformance of smart house temperature with its requirements. However, besides its ...

In this study, we propose AOBAKO, a testbed for context-aware applications, which focuses on the testing of mobile applications using Bluetooth Low Energy (BLE) for indoor positioning. AOBAKO emulates BLE-beacon communications based on accurate frame-...

With the emergence of Internet of Things (IoT) and smart homes, the demand for energy efficient thermal comfort has also increased significantly to address the importance of quality of life (QoL) in a modern society. In this paper, we present a model ...

In multi-task systems, different tasks work together to achieve desired functions. To guarantee the correctness of the functions, the tasks are required to be completed in specific orders. Violation of such orders will lead to the systems in unpredictable ...

In this paper, we consider a group of nearby wireless end devices such as mobile phones cooperating to exchange their received packets from a common base station in order to fulfill the lost packets in other members. This problem can be solved by the ...

Commercially available automation systems for the home are enjoying rising popularity in recent years, promising the dream of a smart home environment. However they leave a lot to be desired in terms of device and network protocol interoperability as ...

For real-time systems, the correctness of system behavior depends on not only the computed results but also on the time at which results are produced. This requires tasks in such systems to be completed before their deadlines. However, when workload is ...

Feedback loss can severely degrade the overall system performance, in addition, it can affect the control and computation of the Cyber-physical Systems (CPS). CPS hold enormous potential for a wide range of emerging applications including stochastic and ...

Knowing human activity in each day is relevant information in several purposes. However, existing activity recognition systems have limitation to identify the human activity because they cannot get the appropriate information for recognition. To address ...

Nowadays, activity recognition has been proposed in several researches. It is attractive to improve the ability of the activity recognition system because existing research on activity recognition systems still have an error in an ambiguous cases. In ...