Benjamin Weyl

Communication architecture for cooperative systems in Europe

Wireless communications for intelligent transportation systems promise to be a key technology for avoiding the traffic nightmares of today - accidents and traffic jams. But there is one major challenge to be overcome before such a cooperative system can be put into place: standardization. This article provides an overview of the technical developments in Europe and their convergence toward a set of European standards. We address the current state of the standardization activities and the potential scenarios and use cases, and we describe the fundamental concepts of a European communication architecture for cooperative systems.

Security requirements for automotive on-board networks

This paper considers security requirements for automotive on-board networks and describes the processes used for identifying and prioritizing such requirements. The security engineering process starts from use cases for automotive onboard networks that require wireless communication interfaces and involves an investigation of security threat scenarios and the assessment of the relative risks associated with the threats.

Car2X Communication: Securing the Last Meter - A Cost-Effective Approach for Ensuring Trust in Car2X Applications Using In-Vehicle Symmetric Cryptography

The effectiveness of Car2X communication strongly relies on trust in received data. Securing in-vehicle communication is an essential yet so far overlooked step to achieve this objective. We present an approach based on the use of symmetric key material protected with inexpensive hardware. We modeled the involved cryptographic and network protocols, showed their applicability to automotive bus systems and conclude about their soundness with analytical and simulation methods. A prototype realization in real vehicles is envisaged as part of an ongoing project.

Enhancement of Consumer Support in Retail Scenarios by Utilization of Semantic Product Memories

In this chapter, the utilization of Digital Product Memories (DPMs) in the retail domain is discussed. We demonstrate a complete retail-related usage scenario from a consumer perspective that begins with the preparation of a shopping list before the physical in-store shopping activity. Throughout the entire shopping process in the retail store, the DPM infrastructure effectively supports the consumer with appropriate product recommendations. It provides explicit and implicit access to the consumer’s user profile with different interaction modalities, e.g., via a display on the shopping cart or the consumer’s cell phone, and supports the payment and checkout process based on digital user representations stored on the consumer’s physical items such as his car key. In order to fully close the circle, we then conclude the discussion of DPM-based consumer support by analyzing the way home by car, as a DPM infrastructure in a car provides ample opportunities for driver assistance, including but not limited to monitoring the temperature in the car or finding an optimal route home that avoids roadworks in order to address the extra need for a shock-free ride for bought items such as raw eggs or bottles of champagne.