Network management is a fundamental ingredient for efficient operation of wireless networks. With increasing bandwidth, number of antennas and number of users, the amount of information required for network management increases significantly. Therefore, distributed network management is a key to efficient operation of future networks. This paper focuses on the problem of distributed joint beamforming control and power allocation in ad-hoc mmWave networks. Over the shared spectrum, a number of multi-input-multi-output links attempt to minimize their supply power by simultaneously finding the locally optimal power allocation and beamformers in a self-organized manner. Our design considers a family of non-convex quality-of-service constraint and utility functions characterized by monotonicity in the strategies of the various users. We propose a two-stage, decentralized optimization scheme, where the adaptation of power levels and beamformer coefficients are iteratively performed by each link. We first prove that given a set of receive beamformers, the power allocation stage converges to an optimal generalized Nash equilibrium of the generalized power allocation game. Then we prove that iterative minimum-mean-square-error adaptation of the receive beamformer results in an overall converging scheme. Several transmit beamforming schemes requiring different levels of information exchange are also compared in the proposed allocation framework. Our simulation results show that allowing each link to optimize its transmit filters using the direct channel results in a near optimum performance with very low computational complexity, even though the problem is highly non-convex.
翻译:网络管理是无线网络高效运行的一个基本要素。随着带宽、天线数量和用户数量的增加,网络管理所需的信息数量大幅增加。因此,分布式网络管理是未来网络高效运行的关键。本文件侧重于在临时HocmmWave网络中分配联合波束控制与电力分配的问题。在共享频谱中,一些多投入-多输出连接试图通过同时找到当地最佳电力分配和自我组织方式的波纹体来最大限度地减少其供应力。我们的设计考虑到网络管理所需的非康韦克斯服务质量限制和公用事业功能的组合,其特点是各用户战略的单一性。我们建议一个两阶段分散化的优化计划,每个链接都对电力水平和光线性系数的调适进行迭接。我们首先证明,如果有一套接收信号的链条,那么权力分配阶段会与普遍权力分配游戏中最优化的普遍平衡。然后,我们证明,在各种用户战略战略中,以单一的单一度服务质量限制和功能功能功能的组合以单一性为特点。我们提出的两个阶段的优化优化优化优化优化优化优化计划,其优化配置计划的结果也是在总体的模拟传输中,不过的升级计划中,同时进行对比的升级。