Power Loading for Multicarrier Cognitive Radio with MIMO Antennas

  title={Power Loading for Multicarrier Cognitive Radio with MIMO Antennas},
  author={Umesh Phuyal and Anjana Punchihewa and Vijay K. Bhargava and Charles L. Despins},
  journal={2009 IEEE Wireless Communications and Networking Conference},
We propose a power loading scheme for multicarrier cognitive radio (CR) network employing multiple-input multiple-output (MIMO) antennas. We allocate power to different transmitting antennas within different subcarriers maximizing the total system capacity while maintaining the interference to primary user within a prescribed limit. We formulate this as a convex optimization problem and use numerical methods to solve for optimal power allocation. We also compare the performance of power loading… CONTINUE READING
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