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针对上行多用户单入多出系统的能量效率优化问题,建立了最小速率限制下的能量效率优化模型,分析了模型的可行性条件.基于凸逼近和几何规划设计了一种高能效的联合波束赋型与功率控制算法.理论分析证明了算法能快速收敛.仿真结果表明,算法在保证最小速率需求的同时能显著提高能量效率.
Aiming at the problem of energy efficiency optimization for multi-user uplink and out-multi-user system, an energy efficiency optimization model with minimum speed limitation is established and the feasibility of the model is analyzed.An energy-efficient joint beam is designed based on convex approximation and geometric programming The result shows that the algorithm can significantly improve the energy efficiency while ensuring the minimum speed requirement.