This paper focuses on the problem of joint beamforming control and power allocation in the ad-hoc mmWave network. 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-interested manner. Our design considers a category of non-convex quality-of-service constraints, which are a function of the coupled strategies adopted by the mutually interfering ad-hoc links. We propose a two-stage, decentralized searching scheme, where the adaptation of power-levels and beamformer filters are performed in two separated sub-stages iteratively at each link. By introducing the analysis based on the generalized Nash equilibrium, we provide the theoretical proof of the convergence of our proposed power adaptation algorithm based on the local best response together with an iterative minimum mean square error receiver. Several transmit beamforming schemes requiring different levels of information exchange are compared. Our simulation results show that with a minimum-level requirement on the channel state information acquisition, a locally optimal transmit filter design based on the optimization of the local signal-to-interference-plus-noise ratio is able to achieve an acceptable tradeoff between link performance and the need for decentralization.
翻译:本文着重讨论在特设-Hocmm-Wave网络中联合波束化控制和权力分配的问题。在共享频谱方面,一些多投入-多产出连接试图通过同时找到当地最佳电力分配和以自我感兴趣的方式利用波束装置来尽量减少其供应力。我们的设计考虑的是非波束式服务质量限制的类别,这是由相互干扰的反向连接所采用组合战略的功能。我们提议了一个两级分散搜索计划,在两个分离的分阶段对权力级别和波束式过滤器进行调适。通过根据普遍纳什平衡进行的分析,我们提供了理论证据,证明我们根据当地最佳反应以及迭接的最低平均方差接收器而提出的电源调整算法的趋同性。一些传输要求不同级别信息交流的波形系统进行了比较。我们的模拟结果表明,在频道信息获取方面有一个最低限度的要求,一种基于优化地方信号-互接力化和可接受性贸易联系需要的地方最佳传送过滤器设计,能够实现可接受的权力下放与可接受性贸易联系之间的需要。