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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 686403, 7 pages
http://dx.doi.org/10.1155/2013/686403
Research Article

Securing Communication via Transmission of Artificial Noise by Both Sides: Bipolar-Beamforming Optimization

1Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2Department of Electronic Engineering, Ohio State University, Columbus, OH 43210, USA

Received 30 August 2013; Accepted 8 November 2013

Academic Editor: Hao Shen

Copyright © 2013 Yongkai Zhou 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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