论文标题
使用模拟天线阵列进行联合通信和无线电传感的多冰块优化
Multibeam Optimization for Joint Communication and Radio Sensing Using Analog Antenna Arrays
论文作者
论文摘要
多光线技术使使用两个或多个子板进行联合通信和无线电传感，以满足光束宽度和指向方向的不同要求。根据要求，生成和优化的多电灯至关重要且具有挑战性，尤其是对于使用模拟阵列的系统。本文为一系列多束设计问题开发了最佳解决方案，这些解决方案都考虑到了交流和传感。我们首先使用相结合系数研究了两个预生成的子梁及其光束成形向量的最佳组合。封闭形式的最佳解决方案被推导为受约束的优化问题，其中接收到的通信信号功率和波束形成波形被用作目标和约束函数。我们还开发了全局优化方法，该方法直接找到了单个波束形成向量的最佳解决方案。通过将原始的顽固性复杂的NP-HARD全局优化问题转换为实际四次限制的二次程序，可以使用半决赛弛豫技术获得近乎最佳的解决方案。广泛的模拟验证了所提出的约束多束生成和优化方法的有效性。
Multibeam technology enables the use of two or more subbeams for joint communication and radio sensing, to meet different requirements of beamwidth and pointing directions. Generating and optimizing multibeam subject to the requirements is critical and challenging, particularly for systems using analog arrays. This paper develops optimal solutions to a range of multibeam design problems, where both communication and sensing are considered. We first study the optimal combination of two pre-generated subbeams, and their beamforming vectors, using a combining phase coefficient. Closed-form optimal solutions are derived to the constrained optimization problems, where the received signal powers for communication and the beamforming waveforms are alternatively used as the objective and constraint functions. We also develop global optimization methods which directly find optimal solutions for a single beamforming vector. By converting the original intractable complex NP-hard global optimization problems to real quadratically constrained quadratic programs, near-optimal solutions are obtained using semidefinite relaxation techniques. Extensive simulations validate the effectiveness of the proposed constrained multibeam generation and optimization methods.
