News Column

New Vehicle Technology Findings from Yonsei University Described

March 1, 2014



By a News Reporter-Staff News Editor at Journal of Transportation -- Fresh data on Vehicle Technology are presented in a new report. According to news reporting originating from Seoul, South Korea, by VerticalNews correspondents, research stated, "In this paper, the optimal beamforming and power allocation strategy for the secondary transmitter based on the sensing result on the state of the primary user in a multiantenna cognitive radio (CR) network is proposed."

Our news editors obtained a quote from the research from Yonsei University, "Unlike the existing sensing-based spectrum sharing, where the secondary transmitter employs a single antenna and adjusts only its transmit power, in the proposed scheme, the secondary transmitter employs multiple transmit antennas and adjusts the beamforming vector as well as the transmit power. An iterative algorithm that can efficiently obtain the optimal beamforming vector and power allocation is developed."

According to the news editors, the research concluded: "Simulation results show that the proposed scheme achieves a significant rate gain over the existing sensing-based spectrum sharing schemes."

For more information on this research see: Optimal Beamforming and Power Allocation for Sensing-Based Spectrum Sharing in Cognitive Radio Networks. IEEE Transactions on Vehicular Technology, 2014;63(1):412-417. IEEE Transactions on Vehicular Technology can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Transactions on Vehicular Technology - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25)

The news editors report that additional information may be obtained by contacting S. Choi, Yonsei University, Sch Elect & Elect Engn, Seoul 120749, South Korea. Additional authors for this research include H. Park and T. Hwang.

Keywords for this news article include: Asia, Seoul, South Korea, Vehicle Technology

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Source: Journal of Transportation


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