International Conference on Wireless Communications and Mobile Computing 

About: International Conference on Wireless Communications and Mobile Computing is an academic conference. The conference publishes majorly in the area(s): Wireless sensor network & Wireless network. Over the lifetime, 4028 publications have been published by the conference receiving 33226 citations.

A model-based design methodology for cyber-physical systems

Abstract: Model-based design is a powerful design technique for cyber-physical systems, but too often literature assumes knowledge of a methodology without reference to an explicit design process, instead focusing on isolated steps such as simulation, software synthesis, or verification. We combine these steps into an explicit and holistic methodology for model-based design of cyber-physical systems from abstraction to architecture, and from concept to realization. We decompose model-based design into ten fundamental steps, describe and evaluate an iterative design methodology, and evaluate this methodology in the development of a cyber-physical system.

Drones for smart cities: Issues in cybersecurity, privacy, and public safety

Abstract: It is expected that drones will take a major role in the connected smart cities of the future. They will be delivering goods and merchandise, serving as mobile hot spots for broadband wireless access, and maintaining surveillance and security of smart cities. However, pervasive use of drones for future smart cities also brings together several technical and societal concerns and challenges that needs to be addressed, including in the areas of cybersecurity, privacy, and public safety. Drones, while can be used for the betterment of the society, can also be used by malicious entities to conduct physical and cyber attacks, and threaten the society. The goal of this survey paper is to review various aspects of drones in future smart cities, relating to cybersecurity, privacy, and public safety. We will also provide representative results on cyber attacks using drones.

A self-adjusting directed random walk approach for enhancing source-location privacy in sensor network routing

Abstract: Source-location privacy is a sensor network privacy that is quite different from content privacy, which could be protected by usual network security techniques. In a sensor network environment, the wireless medium is shared. An adversaries may trace back to the source sensor hop by hop with signal localization devices. In order to enhance source-location privacy, a technique called phantom routing [8] has emerged. Phantom routing consists of two phases: random walk to create phantom sources and a subsequent routing phase to deliver a message to the sink. Random walk phase plays an important role in phantom routing. Two approaches, which are sector-based directed random walk and hop-based directed random walk, could be applied to random walk phase. However, it is observed that the performance of those two random walk approaches will drop if the source locates in certain regions of the sensing field. The reason is that a message may be blocked at a node because no neighbors are available in the direction chosen by the source at beginning. This will result in the premature termination of the random walk phase. In this paper, a self-adjusting directed random walk technique is proposed. This approach is able to adjust the direction of the random walk based on the estimation of the current node's relative location to the source when a message is blocked. From the results of simulation, self-adjusting directed random walk solves above problem and shows an improvement on the overall performance of phantom routing.

Performance study of a Green Light Optimized Speed Advisory (GLOSA) application using an integrated cooperative ITS simulation platform

Abstract: This paper proposes a Green Light Optimized Speed Advisory (GLOSA) application implementation in a typical reference area, and presents the results of its performance analysis using an integrated cooperative ITS simulation platform. Our interest was to monitor the impacts of GLOSA on fuel and traffic efficiency by introducing metrics for average fuel consumption and average stop time behind a traffic light, respectively. For gathering the results we implemented a traffic scenario defining a single route through an urban area including two traffic lights. The simulations are varied for different penetration rates of GLOSA-equipped vehicles and traffic density. Our results indicate that GLOSA systems could improve fuel consumption and reduce traffic congestion in junctions.

An evaluation of low power wide area network technologies for the Internet of Things

Abstract: We explore the state of the art in solutions for low power wide area (LPWA) networks and technologies serving the Internet of Things (IoT) and Connectivity for Everything markets. These networks are forecast to capture up to 55% market share using battery-powered devices operating up to 10 years and link distances measured in tens of kilometers. In this paper, we survey two LPWA technologies; ultra-narrow band solutions by SigFox and the LoRa technology by Semtech. Both technologies operate in the licence-exempt industrial, scientific, & medical (ISM) bands (EU 868 MHz / US 915 MHz). We survey both solutions in terms of physical layer (PHY) and associated medium access control (MAC) capabilities from an end-to-end system viewpoint. We then proceed to explore coverage ranges in eastern Ireland.We present results indicating a potential coverage area of 3,800 km2 and from a real-world experimental test case involving the use of SigFox's technology operating over a 25 km test link between a 25 mW LPWA client test and a basestation. Finally, we provide example results demonstrating a received SNR consistently exceeding 20 dB over this test link distance.