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Article: Research reports from National University provide new insights into vehicular technology.(Report)
- Article from:
- Journal of Transportation
- Article date:
- November 14, 2009
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According to recent research published in the journal IEEE Transactions on Vehicular Technology, "In this paper, a new spectrum-sharing model called sensing-based spectrum sharing is proposed for cognitive radio networks. This model consists of two phases: In the first phase, the secondary user (SU) listens to the spectrum allocated to the primary user (PU) to detect the state of the PU; in the second phase, the SU adapts its transit power based on the sensing results."
"If the PU is inactive, the SU allocates the transmit power based on its own benefit. However, if the PU is active, the interference power constraint is imposed to protect the PU. Under this new ...