The optimization of the number of deployed antennas in large-scale CL-DAS for energy efficiency

Abstract

Abstract We consider the deployment of a large-scale circular layout-distributed antenna system. To maximize energy efficiency, we define the optimization problem with the approximated analysis and find the number of deployed antennas as a closed-form solution. In simulation results, we verify that the analysis based on approximation is accurate and the closed-form solution can achieve near-optimal energy efficiency without an exhaustive search method.

Keywords

• Large-scale circular layout-distributed antenna system
• Antenna deployment
• Optimization
• Energy efficiency