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Electronic control units (ECUs) of in-vehicle systems are being designed to handle an increasing number of functions. However, malfunctions may occur when an in-vehicle system is upgraded. Moreover, because they are visible to hackers, connected vehicles are becoming the object of cyberattacks. Therefore, the necessity of updating ECU software is increasing. Car owners cannot use their cars during...
We will focused the concept of serializability in order to ensure the correct processing of transactions. However, both serializability and relevant properties within transaction-based applications might be affected. Ensure transaction serialization in corrupt systems is one of the demands that can handle properly interrelated transactions, which prevents blocking situations that involve the inability...
Roadway safety is a serious public health issue. Vehicle crashes on the roads and highways cost loss of lives and damages to properties. Technology exists today to help identify and respond quickly to crashes, which is specially critical in rural areas. A feature that enables a car to warn its driver against an eminent crash or to recommend the proper speed based on traffic and weather conditions...
In this paper, we consider a MIMO system with two transmit ports and receiver ports in the power-line communications (PLC), and we propose two space time block codes (STBCs) Finite Feedback Schemes (FFSs) for PLC. In each scheme, the transmitter equips with two STBCs, one corresponding to each of the feedback values, to encode the information bits. Because of the impulsive noise in PLC channels, the...
Using LED lighting has many advantages such as power efficient, better quality, long life span, and focus emission. LED lighting has been employed in our daily life in various ways, (car lamps and lights in vehicles, roadside signal lights, indoor lighting systems, etc.). Moreover, LED light bulbs can also be employed for wireless data communications, namely visible light communication (VLC), which...
Wireless rechargeable sensor networks are becoming crucial and important in recent years for the advancement of wireless energy transmission technology. The previous research shown that not all of sensors can be recharged due to the limitation of energy capacity that mobile chargers can carry. If a sensor playing a critical role in a sensing task cannot function as usual due to the exhausted energy,...
Localization is an important issue and has been applied in many applications. Many localization mechanisms have been developed in the last decade, including GPS-based, Wi-Fi RSSI Signal based as well as BLE Beacon based localizations. The common disadvantages of the existing localization mechanisms is that they belong the class of Active Localization which requires the localization target carrying...
Currently, Visible Light Communication (VLC) technology remains a lagging research in the field of UltraWide Band (UWB), due to the inefficiency of data capture and synchronization period. Accordingly, this paper proposes a fundamental designand implementation of data communication of VLC on the MAC layer based on FPGA. This paper includes basic research context, design and implementation of UWB MAC...
In Japan, since aging population and declining birth birthrate are advancing, most of the local areas are suffering from depopulation [1][2]. The decrease of economic activity is deriving poor social infrastructure such as bad road conditions and challenged information communication infrastructure. For those reasons, it is very difficult to keep the lives and properties of the residents in local areas...
Localization systems for outdoor areas using GNSS based systems (like GPS, GLONASS and more) are nowadays widespread and commonly-available in devices like smartphones. For indoor localization, on the other hand, several methods has been proposed in the latest years, like inertial navigation systems (INS) or wireless positioning systems (WPS, like wireless trilateration or fingerprinting methods),...
Many devices communicate over Wireless Local Area Networks (WLANs). The IEEE 802.11e standard for WLANs is an important extension of the IEEE 802.11 standard focusing on QoS that works with any PHY implementation. The IEEE 802.11e standard introduces EDCF and HCCA. Both these schemes are useful for QoS provisioning to support delay-sensitive voice and video applications. EDCF uses the contention window...
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