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SECON
2007
IEEE

Effect of Antenna Placement and Diversity on Vehicular Network Communications

11 years 6 months ago
Effect of Antenna Placement and Diversity on Vehicular Network Communications
— In this paper we present empirical results from a study examining the effects of antenna diversity and placement on vehicle-to-vehicle link performance in vehicular ad hoc networks. The experiments use roofand in-vehicle mounted omni-directional antennas and IEEE 802.11a radios operating in the 5GHz band, which is of interest for planned inter-vehicular communication standards. Our main findings are two-fold. First, we show that radio reception performance is sensitive to antenna placement in the 5Ghz band. Second, our results show that, surprisingly, a packet level selection diversity scheme using multiple antennas and radios, Multi-Radio Packet Selection (MRPS), improves performance not only in a fading channel but also in line-of-sight conditions. This is due to propagation being affected by car geometry, leading to the highly non-uniform antenna patterns. These patterns are very sensitive to the exact antenna position on the roof, for example at a transmit power of 40mW the li...
Sanjit Krishnan Kaul, Kishore Ramachandran, Pravin
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where SECON
Authors Sanjit Krishnan Kaul, Kishore Ramachandran, Pravin Shankar, Sangho Oh, Marco Gruteser, Ivan Seskar, Tamer Nadeem
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