INTERFERENCE-ADAPTIVE UWB RADIO-BASED VEHICLE COMMUNICATION SYSTEM FOR ACTIVE-SAFETY
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United States of America Patent
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N/A
Issued Date -
Oct 13, 2011
app pub date -
Apr 9, 2010
filing date -
Apr 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method for increasing transmission concurrency amongst communicating vehicles using UWB radio-based communication is presented. The method comprises dividing an area around a sending vehicle into transmission areas, and, for each transmission area, broadcasting a message from the sending vehicle, waiting for a time, and when a not clear to send response is not received, sending information to the transmission area, and the information being sent using a time-hopping sequence based on a location and seed in the message. The message can also have a frame length and a target region. The method can also comprise determining, when a no-send is received, whether the no-send was in response to the message from the sending vehicle, and when the no-send is not in response to the message from the sending vehicle, sending the information to the transmission area. The system and method can be used for active-safety vehicle communication.
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