An Empirical Study on Automotive Wireless Harness with Millimeter-wave Radio

This paper is concerned with automotive networks and suggests the use of wireless signal to replace current wired signal between some ECU nodes for the improvement of fuel efficiency and reduction of fossil fuel usage. Considering the wireless connection channel, it would be blocked by passenger's body and seat, for example, thereby resulting in channel deterioration. This paper presents a wireless approach based on automotive ceiling reflection where the ceiling simply performs as reflector. The ceiling will be able to offer stable wireless link for all the nodes. Measurement was conducted in 60 GHz band and the results are compared with conventional wireless approach. As a result, our suggested approach is found not to be affected by passengers and seat.