|
|
Article: Scientists at Oregon State University describe research in vehicular technology.(Report)
- Article from:
- Journal of Transportation
- Article date:
- November 14, 2009
CopyrightCOPYRIGHT 2009 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
According to a study from the United States, "Directional antennas are preferred for efficient wireless communications in the 60-GHz spectrum. Recent efforts to adapt high-data-rate medium access control (MAC) protocols from standards that are designed for operation in the lower frequency bands face challenges in acquiring the location of nearby devices in a network."
"In this paper, we propose a cross-layer neighbor-discovery algorithm for directional 60-GHz networks to assist the MAC layer in efficiently using the directional antennas. We utilize linear and circular polarization and their different responses to reflection to synchronize the transmitter and the ...