An Iteratively Weighted MMSE Approach to Distributed Sum-Utility Maximization for a MIMO Interfering Broadcast Channel

作者：Shi, Qingjiang^*; Razaviyayn, Meisam; Luo, Zhi Quan; He, Chen

来源：IEEE Transactions on Signal Processing, 2011, 59(9): 4331-4340.

DOI：10.1109/TSP.2011.2147784

• Linear beamformer
• MIMO interfering broadcast channel
• sum-utility maximization
• weighted MMSE
• weighted sum-rate maximization

Consider the multiple-input multiple-output (MIMO) interfering broadcast channel whereby multiple base stations in a cellular network simultaneously transmit signals to a group of users in their own cells while causing interference to each other. The basic problem is to design linear beamformers that can maximize the system throughput. In this paper, we propose a linear transceiver design algorithm for weighted sum-rate maximization that is based on iterative minimization of weighted mean-square error (MSE). The proposed algorithm only needs local channel knowledge and converges to a stationary point of the weighted sumrate maximization problem. Furthermore, the algorithm and its convergence can be extended to a general class of sum-utility maximization problem. The effectiveness of the proposed algorithm is validated by numerical experiments.

• 出版日期2011-9
• 单位上海交通大学