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Full duplex (FD) cognitive radio (CR) is one of the key enabling technologies for future wireless communication systems. Improvement in the spectrum efficiency, as promised by the CR technology can be further extended to FD-CR networks (FDCRNs) by performing a highly efficient and methodical spectrum sensing. In this paper, energy detection based effective spectrum sensing in FDCRNs considering residual...
Smart sensing, devices, and monitoring are essential to localized motor condition monitoring and service applications. A unique approach to the smart device is the use of low-cost wireless sensors for machine condition measurement. Smartphones may be used as the computational platform that acquires motor parameters from wireless sensors using a compatible local communication. Considering the widespread...
We present an approach to tracking the behaviour of an attacker on a decoy system, where the decoy communicates with the real system only through low energy bluetooth. The result is a low-cost solution that does not interrupt the live system, while limiting potential damage. The attacker has no way to detect that they are being monitored, while their actions are being logged for further investigation...
Backscatter wireless communication (BWC) is a promising research area for the low power Internet of Things (IoT) devices. A substantial number of research works have been conducted in this area to increase the range of BWC. Along with physical layer achievements in BWC, an efficient medium access control (MAC) protocol is mandatory to attain the optimal benefit. In this paper, a novel MAC protocol...
The advent of Cloud has aided mobile devices in performing computation intensive tasks with the virtue of offloading. However, this leads to communication with the Cloud, which results in high energy consumption. Moreover, communication over wireless medium has the risk of intermittent connectivity with Cloud. Hence, there is an urgent need for providing a trade-off between energy consumption and...
Recent research on Low Power Wide Area Network (LPWAN) technologies which provide the capability of serving massive low power devices simultaneously has been very attractive. The LoRaWAN standard is one of the most successful developments. Commercial pilots are seen in many countries around the world. However, the feasibility of large scale deployments, for example, for smart city applications need...
Due to the exponential advancements in mobile and IoT device capabilities, we are currently witnessing a resurrection in the domains of ubiquitous and pervasive systems. These systems and devices heavily rely on efficient wireless communication as an enabler of single and multi-hop wireless data transfers. Awareness of the practical performance capabilities and limitations of existing wireless technologies...
Energy Harvesting is one of promising technique to solve the power limitation problem which becomes an important problem for next generation communication. Since the scheduling process of current communication systems causes heavy power consumption in serving a large number of devices, the grant-free communication becomes a viable option in machine-type communication with energy harvesting. In this...
Elektromyography (EMG) signals are the electrical signals that are emerged by muscular contraction. In this study, a wireless EMG device was designed and implemented. The EMG signals are collected by surface electrodes, processed with filters and amplifiers and sent to the computer via wireless module. The EMG signals are obtained and amplified by an instrumentation and an inverting amplifier. Then,...
Designing circuits for enhanced IoT (“Internet of Things”) applications is one of the current growth driver for the electronics industry. Optimizing such circuits for lowest power consumption while maximize functionality and performance is key for successful implementation of such circuits in the IoT systems. IoT devices are diverse in nature but are typically constrained by limited power availability,...
Cognitive radio technology can get used to mitigate spectrum scarcity in a wide range of wireless systems. The key factor in cognitive radio systems is to use a blind and reliable sensing method. Maximum to minimum eigenvalue (MME) is known as one of the best performing covariance based spectrum sensing methods in the literature. In this paper, we propose to use consecutive results of previously sensed...
Wireless localization can provide position information for limitary, aerospace, emergency scheduling, rescue and relief work, fault diagnosis and many other related location-based services system in various application fields. Location information always supports critical decision-making of these application systems. So the localization accuracy is of great importance. As availability, low computation...
In this paper, we aim to enhance the interaction between the performer and the audience in live idol performances. We propose a system for converting the movements of individual members of an idol group into vibrations and their voices into light on handheld devices for the audience. Specifically, for each performer, the system acquires data on movement and voice magnitudes via an acceleration sensor...
This paper investigates multi-user scheduling in a full-duplex (FD) wireless-powered communication network, consisting of multiple energy harvesting (EH) source nodes (SNs) and one FD hybrid access point (HAP). All SNs have no embedded energy supply and thus need to perform EH before transmitting their data to the HAP. Thanks to the FD capability, the HAP simultaneously receives data from the scheduled...
Machine-Type Communication (MTC) is the communication between machines through either wired or wireless links without human intervention. The LTE cellular networks with global connectivity and wide range of coverage provide infrastructure for developing MTC applications. However, the differences between conventional communications and MTC bring new technical challenges to the LTE. In this article,...
We present recent work in the design and operation of wireless sensor-actuation systems along three aspects. At the device level, a major drive is the reduced power consumption of the wireless transceivers without loss of control performance. At the channel access level, a shared wireless channel needs to be administered between multiple systems with control performance guarantees for all systems...
The large number of personal wireless devices in the urban areas could be used to provide various opportunistic data services, such as WiFi sharing, content-based file sharing and opportunistic networking. In order to facilitate these services, it is essential to incentivise the device owners to become service providers. However, previous research failed to deliver any practical payment systems for...
In recent years, mobile data gathering in wireless sensor networks has attracted much interests in the research community. However, despite extensive efforts, many of previous work in this area lies only in theory and evaluates network performance with computer simulations, which leaves a large gap from reality. In this paper, we present the design and implementation of a general purpose, flexible...
This paper highlights a 14nm Analog and RF technology based on a logic FinFET platform for the first time. An optimized RF device layout shows excellent Ft/Fmax of (314GHz/180GHz) and (285GHz/140GHz) for NFET and PFET respectively. A higher PFET RF performance compared to 28nm technology is due to a source/drain stressor mobility improvement. A benefit of better FinFET channel electrostatics can be...
Internet of Things (IoT) applications requiring the installation of a large number of sensors face power supply limitations. This paper presents a solution which powers sensing devices without the use of batteries or power lines. The proposed solution is tested using temperature, humidity and gas sensors, using BLE for wireless transmission and MUC for signal processing. Experimental results show...
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