基于能量效率的多天线系统线性预编码算法

Linear Precoding Algorithm for Multi-antenna Systems Based on Energy Efficiency

为了解决基于用户服务质量约束的多用户多天线系统高能效线性预编码问题,根据分式规划性质提出了一种迭代优化算法,并利用凸优化方法对每次迭代中子问题进行求解,分别讨论了最大功率发送与非最大功率发送两种子问题求解情况。最后,仿真结果表明,该算法收敛性优,且在确保用户服务质量情况下可有效提高系统能效。

To solve the problem of high energy efficient linear precoding in the multiuser and multi-antenna systems with quality of service （QoS） constraint, an optimization iterative algo-rithm is proposed based on the properties of fractional programming, and the convex optimization method is utilized to solve the sub-problem in each iterative, and two instances of the sub-prob-lem ,including maximum power transmitting or not, are discussed. Finally, simulation results show that the algorithm has excellent astringency and can significantly enhance system energy ef-ficient under the condition of the user＇s QoS.