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Mathematical Problems in Engineering
Volume 2014, Article ID 781528, 7 pages
http://dx.doi.org/10.1155/2014/781528
Research Article

Energy Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Partial Intersystem CSI

1Institute of Embedded Software and Systems, Beijing University of Technology, Beijing 100022, China
2Department of Vehicle Information Systems, North Information Control Group Co., Ltd., Nanjing 211153, China
3Department of National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 610054, China

Received 11 February 2014; Accepted 27 May 2014; Published 25 June 2014

Academic Editor: Michael Vynnycky

Copyright © 2014 Yunli Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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