Outage Probability and Outage-Based Robust Beamforming for MIMO Interference Channels with Imperfect Channel State Information
arXiv:1206.6172 · doi:10.1109/TWC.2012.072512.111899
Abstract
In this paper, the outage probability and outage-based beam design for multiple-input multiple-output (MIMO) interference channels are considered. First, closed-form expressions for the outage probability in MIMO interference channels are derived under the assumption of Gaussian-distributed channel state information (CSI) error, and the asymptotic behavior of the outage probability as a function of several system parameters is examined by using the Chernoff bound. It is shown that the outage probability decreases exponentially with respect to the quality of CSI measured by the inverse of the mean square error of CSI. Second, based on the derived outage probability expressions, an iterative beam design algorithm for maximizing the sum outage rate is proposed. Numerical results show that the proposed beam design algorithm yields better sum outage rate performance than conventional algorithms such as interference alignment developed under the assumption of perfect CSI.
arXiv comment41 pages, 14 figures. accepted to IEEE Transactions on Wireless Communications
References in corpus (3)
Cited by in corpus (6)
- Optimal Beamforming for Physical Layer Security in MISO Wireless Networks
- Multicell Coordinated Beamforming with Rate Outage Constraint--Part II: Efficient Approximation Algorithms
- Multicell Coordinated Beamforming with Rate Outage Constraint--Part I: Complexity Analysis
- Achievable Outage Rate Regions for the MISO Interference Channel
- On the Exact Distribution of Mutual Information of Two-user MIMO MAC Based on Quotient Distribution of Wishart Matrices
- Robust Transceiver Design Based on Interference Alignment for Multi-User Multi-Cell MIMO Networks with Channel Uncertainty