Adaptive pilot placement for estimation of vehicle-to-vehicle wireless channel

摘要

A system and method that may facilitate transmission bandwidth savings in non-stationary vehicle-to-vehicle wireless communication channels. At a transmitting vehicle, a transmitter may adaptively change the number of pilot symbols or pilot rate within a frame based upon the current channel statistics. The transmitter may utilize a look-up table approach to select a best pilot rate based upon current conditions associated with the transmitting vehicle, and/or a new frame structure to transmit pilot rate information. At the receiving vehicle, the receiver may be configured to detect a unique waveform transmitted by the transmitting vehicle to estimate the pilot rate information. Alternatively, the receiver on the receiving vehicle may be configured to predict and verify the pilot rate information from an encoded data symbol embedded within a frame transmitted by the transmitting vehicle, which may entail a detection algorithm using encoded data symbols and/or an estimation algorithm using channel statistics.

主权项

1. A transmission method for vehicle-to-vehicle wireless communication, the transmission method comprising:
(1) determining a dynamic pilot rate based upon one or more current conditions associated with a first moving vehicle; and (2) encoding the dynamic pilot rate in each frame of a transmission transmitted from the first moving vehicle to a second moving vehicle to facilitate enhanced use of transmission bandwidth.