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Title: MISO interference channel with improper Gaussian signaling
Authors: Zeng, Y.
Zhang, R. 
Gunawan, E.
Guan, Y.L.
Keywords: Improper Gaussian signaling
semidefinite relaxation
Issue Date: 18-Oct-2013
Citation: Zeng, Y., Zhang, R., Gunawan, E., Guan, Y.L. (2013-10-18). MISO interference channel with improper Gaussian signaling. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings : 4374-4378. ScholarBank@NUS Repository.
Abstract: This paper studies the achievable rate region of the K-user Gaussian multiple-input single-output interference channel (MISO-IC) with interference treated as noise, when improper or circularly asymmetric complex Gaussian signaling is applied. By exploiting the separable rate expression with improper Gaussian signaling, we propose a separate covariance and pseudo-covariance optimization algorithm, which is guaranteed to improve the users' rates over the conventional proper or circularly symmetric complex Gaussian signaling. In particular, for the pseudo-covariance optimization, the semidefinite relaxation (SDR) technique is applied to provide a high-quality approximate solution. For the special case of two-user MISO-IC, the SDR technique yields the optimal pseudo-covariance solution. © 2013 IEEE.
Source Title: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISBN: 9781479903566
ISSN: 15206149
DOI: 10.1109/ICASSP.2013.6638486
Appears in Collections:Staff Publications

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