Wireless Interface at 5.7 GHz for Intra-Vehicle Communications
Wireless Interface at 5.7 GHz for Intra-Vehicle Communications
This chapter presents a wireless interface for intra-vehicle communications (data acquisition from sensors, control, and multimedia) at 5.7 GHz. As part of the wireless interface, a RF transceiver was fabricated in the UMC 0.18 µm RF CMOS process and when activated, it presents a total power consumption of 23 mW with the voltage-supply of 1.5 V. This allows the use of only a coin-sized battery for supplying the interface. The carrier frequency can be digitally selectable and take one of 16 possible frequencies in the range 5.42-5.83 GHz, adjusted in steps of 27.12 MHz. These multiple carriers allow a better spectrum allocation and at the same time will improve the channel capacity due to the possibility to allow multiple accesses with multiple frequencies.
CITATION: Carmo, J. P.. Wireless Interface at 5.7 GHz for Intra-Vehicle Communications edited by Cornetta, Gianluca . Hershey, PA : IGI Global , 2012. Wireless Radio-Frequency Standards and System Design - Available at: https://library.au.int/wireless-interface-57-ghz-intra-vehicle-communications