Real-time Location-based Services Research Articles

IoT Notary : Attestable Sensor Data Capture in IoT Environments

Contemporary IoT environments, such as smart buildings, require end-users to trust data-capturing rules published by the systems. There are several reasons why such a trust is misplaced—IoT systems may violate the rules deliberately or IoT devices may transfer user data to a malicious third-party due to cyberattacks, leading to the loss of individuals’ privacy or service integrity. To address such concerns, we propose IoT Notary , a framework to ensure trust in IoT systems and applications. IoT Notary provides secure log sealing on live sensor data to produce a verifiable “proof-of-integrity,” based on which a verifier can attest that captured sensor data adhere to the published data-capturing rules. IoT Notary is an integral part of TIPPERS, a smart space system that has been deployed at the University of California, Irvine to provide various real-time location-based services on the campus. We present extensive experiments over real-time WiFi connectivity data to evaluate IoT Notary , and the results show that IoT Notary imposes nominal overheads. The secure logs only take 21% more storage, while users can verify their one day’s data in less than 2 s even using a resource-limited device.

Unleashing the Power of mCRM: Investigating Antecedents of Mobile CRM Values from Managers’ Viewpoint

ABSTRACTMobile technology together with Internet-based electronic commerce has transformed the way businesses operate. Mobile Customer Relationship Management (mCRM) combines mobility and CRM (customer relationship management) to enable organizations to increase their business performance by delivering better products/services to their customers. Incorporating location-based information into CRM systems has created new values and business opportunities. Using location information, for example, businesses can offer more personalized and real-time location-based services (LBS) to their customers. In this study, we investigate how the IT infrastructure and LBS support of mCRM, as technical resource capabilities, and mCRM knowledge and education, as human resource capabilities, can enhance business performance of the organization by improving mCRM’s quality dimensions. We propose a research model that integrates the resource-based view (RBV) of a firm and DeLone and McLean IS success model to investigate the effects of mCRM quality dimensions on business performance. To validate the proposed research model, we collected a set of empirical data from managers in a wide range of organizations that use mCRM in South Korea. The results indicate that the IT infrastructure of an organization as a technical resource, along with mCRM users’ knowledge, as a human resource capability can significantly influence managers’ perceptions of quality along various dimensions of mCRM: customer data quality, system quality, and service quality. Consequently, improving these quality dimensions will significantly influence the performance of an organization in terms of financial performance, productivity, and customer satisfaction. The present study would help both academic and professionals to understand and improve business performance by employing the appropriate resources that can harness the full potential of mCRM.

Location privacy attacks and defenses in cloud-enabled internet of vehicles

As one of the promising branches of the Internet of Things, the cloud-enabled Internet of Vehicles (CE-IoV) is envisioned to serve as an essential data sensing, exchanging, and processing platform with powerful computing and storage capabilities for future intelligent transportation systems. The CE-IoV shows great promise for various emerging applications. In order to ensure uninterrupted and high-quality services, a vehicle should move with its own VM via live VM migration to obtain real-time location-based services. However, the live VM migration may lead to unprecedented location privacy challenges. In this article, we study location privacy issues and defenses in CE-IoV. We first present two kinds of unexplored VM mapping attacks, and thus design a VM identifier replacement scheme and a pseudonym-changing synchronization scheme to protect location privacy. We carry out simulations to evaluate the performance of the proposed schemes. Numerical results show that the proposed schemes are effective and efficient with high quality of privacy.

A Real-Time Location-Based Services System Using WiFi Fingerprinting Algorithm for Safety Risk Assessment of Workers in Tunnels

This paper investigates the feasibility of a real-time tunnel location-based services (LBS) system to provide workers’ safety protection and various services in concrete dam site. In this study, received signal strength- (RSS-) based location using fingerprinting algorithm and artificial neural network (ANN) risk assessment is employed for position analysis. This tunnel LBS system achieves an online, real-time, intelligent tracking identification feature, and the on-site running system has many functions such as worker emergency call, track history, and location query. Based on ANN with a strong nonlinear mapping, and large-scale parallel processing capabilities, proposed LBS system is effective to evaluate the risk management on worker safety. The field implementation shows that the proposed location algorithm is reliable and accurate (3 to 5 meters) enough for providing real-time positioning service. The proposed LBS system is demonstrated and firstly applied to the second largest hydropower project in the world, to track workers on tunnel site and assure their safety. The results show that the system is simple and easily deployed.

Travel assistance device: utilising global positioning system-enabled mobile phones to aid transit riders with special needs

Recent advancements in mobile technology allow global positioning system (GPS)-enabled cell phones to provide a variety of real-time location-based services. This study reports on the design, implementation and testing of such a service, the travel assistance device (TAD), that aids transit riders with special needs in using public transportation. TAD is a program that provides the rider with customised real-time audio, visual and tactile prompts for exiting the transit vehicle by announcing ‘Get ready ’ and ‘Pull the cord now!’ Additionally, TAD provides alerts to riders, their caretakers and travel trainers if a rider deviates from the planned route. A website allows easy access for the creation of new trip itineraries and allows authorised personnel to monitor the rider's location in real-time from any computer. While the TAD was designed to aid transit riders with special needs to increase their level of independence and their care-takers' level of security, any rider new to a transit system can use TAD for planning and executing trips with confidence and ease.

Privacy for real-time location-based services

Location-Based Services (LBSs) are developing at an amazing pace. Whereas the first generation of LBSs required manual user input of location information via simple web-based interfaces, current GPS-enabled devices such as smartphones or in-car navigation systems can automatically initiate and negotiate LBSs based on their current position. The latest generation of LBSs combines high position accuracy with real-time position updates, which enables numerous applications including asset tracking, location-based advertising, location-sensitive billing, and street-level routing and positioning.