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GLOBECOM
2009
IEEE

On the Rate Duality of MIMO Interference Channel and Its Application to Sum Rate Maximization

9 years 11 months ago
On the Rate Duality of MIMO Interference Channel and Its Application to Sum Rate Maximization
In this paper, we establish a rate duality between the forward and reverse links of MIMO interference channel, where the reverse links are obtained by exchanging the roles of transmitters and receivers in the forward links, and the corresponding channel matrices are conjugate transpose of the forward channel matrices. Since the capacity region for general interference channel is unknown, we show that the forward and reverse links have the same achievable rate region by treating interference as noise under some sum power constraint. The explicit expression of the corresponding input covariance matrix transformation is provided. We discuss the connection between the proposed transformation and the MAC-BC transformations in the previous works. As an application, a duality based iterative algorithm is proposed to maximize the sum rate of MIMO interference channel under sum power constraint. We also extend the algorithm to individual power constraint. The proposed algorithms are shown to be...
An Liu, Youjian Liu, Haige Xiang, Wu Luo
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where GLOBECOM
Authors An Liu, Youjian Liu, Haige Xiang, Wu Luo
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