—Radio Frequency Identification (RFID) systems often are operated in environments with multiple RFID tags. In such an environment, a conventional RFID system resolves collisions of multiple tags on the medium access control layer, discarding the signals of the physical layer. This paper proposes a zero-forcing and an interference cancellation receiver… (More)
— Radio frequency identification (RFID) systems at ultra high frequencies operate in an environment exposed to fading. While state-of-the-art RFID readers utilise multiple receive antennas with antenna multiplexing in order to deal with the multipath propagation environment, this contribution proposes maximal ratio combining at RFID reader receivers. A dual… (More)
—We apply and extend the packet detection and frequency synchronization technique by Schmidl and Cox to a multi-antenna receiver for Wireless Access in Vehicular Environments (WAVE) according to IEEE 802.11p. We investigate the resulting performance enhancements due to the use of multiple antennas from recently carried out real-world experiments in… (More)
In this contribution, we present performance evaluation results for a multi-antenna receiver for Wireless Access in Vehicular Environments (WAVE) according to IEEE 802.11p. The analysis was performed by employing the Selection Combining (SC), the Equal Gain Combining (EGC) and the Maximum Ratio Combining (MRC) algorithms on recently carried out real-world… (More)
This paper reports the development of a flexible and scal-able testbed for the implementation and evaluation of signal processing algorithms for multiple antenna (MIMO) systems. At a maximum, four transmit and four receive antennas can be served. Two operational modes are targeted: non real-time block transmission and real-time operation.
Digital maps can provide essential information for many advanced driver assistance systems (ADAS) dedicated to both safety and comfort applications. As the level of detail and global accuracy of state-of-the-art digital maps are not sufficient for a multitude of applications, we present methods and models for the generation of high precision maps. The… (More)
Driver assistance systems using situation analysis require a reliable environment perception in order to improve the traffic safety.
In modern driver assistance systems digital maps have proven usefulness for many applications in providing information on the environment around the host vehicle. For future ADAS, relevant to traffic safety, high precision digital maps including detailed information about the course of individual lanes are needed. We introduce a new method for the… (More)
In this contribution, we discuss and analyze results from real-world performance measurements for IEEE 802.11p during September 2010 along the highway S1 near Vienna, Austria. More specifically, we evaluate the frame success ratio and goodput of the IEEE 802.11p physical (PHY) layer for a infrastructure-to-vehicle (I2V) scenario in a tunnel. We report and… (More)