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Special Session
Organizer and Moderator
Abstract: Due to the increasing demands on automotive communication systems, new solutions are required to meet the challenges of electromobility and autonomous driving. Within the ERIKA Project a new Orthogonal Frequency Division Multiplexing (OFDM) based bus system for in-vehicle communication is being developed. The goal is to create a universal, robust and future-proof communication system that is ready for the application in the future automotive setups.
Towards OFDMA-based Ethernet for future in-vehicle communication
Dominik Stöhrmann, Adam Kostrzewa, Rolf Ernst (Technische Universität Braunschweig, Germany), Helmut Kellermann (BMW, Germany)
Abstract: Future trends, such as highly automated and autonomous driving, will lead to increasing demands on communication systems and a rising complexity of cable harness. Therefore a zonal IVN architecture is introduced a high performant backbone. Therefore, new technologies and architectures are being developed. One of them is Ethernet it is one promising approach for high bandwidth traffic, but not for reducing harness complexity. As a result, OFDM-based in-vehicle communication is being developed in the ERIKA project. ERIKA investigates the feasibility of wired OFDM-based in-vehicle communication with a time and frequency multiplexing approach to handle future requirements.
Characterization and Simulation of an OFDM-Based Automotive Bus System
Rajesh Kumar Sharma, Sarah Cheraghinav, Fajer Khairaldin, Markus Freund, Gangolf Hirtz (Technische Universität Chemnitz, Germany)
Abstract: The communication channel of an OFDM-based bus system in an automotive environment plays a very important role for the system performance. The channel attenuation as well as time and frequency dependent properties of the channel are to be characterized and evaluated for suitable selection of OFDM parameters and the performance of the system. To characterize the complete system a precise measurement of the OFDM channel is required. Further, the allocation of frequency bands for different user nodes as per their requirements gives rises to the possibility of considering different transceiver classes optimizing the utilization of communication links.
Resource Management in OFDM-based automotive bus
Marie-Terese Harnau, (Technische Universität Braunschweig, Germany)
Abstract:The novel OFDM-based approach has multiple challenges which have to be considered e.g. the unreliable OFDM medium. However, our approach combines OFDMA with a TDMA grid, which result in a scheduling in time and frequency domain. Moreover, the schedule distribution will be performed by a managing entity, the Resource Manager. The interaction between the managing entity and the OFDM MAC layer is discussed.
