基于模拟退火算法的多基站协作功率分配

摘要

In order to improve the transmission rate of cellular mobile communication system,a power allocation scheme for multi-base stations cooperation based on simulated annealing algorithm is presented.In this scheme,the sum rate of the sys-tem maximization is formulated as a fitness function optimization problem,the approximate optimal solution is obtained through setting parameter of the cooling schedule reasonably in the annealing process,.Numerical simulations show that the convergence performance of the algorithm is not affected by the number of base stations and users.Moreover,compared with genetic algorithm,the proposed algorithm will increase the sum rate of system 3.6 bit/s in the same conditions with faster convergence speed.%为了提高蜂窝移动通信系统的传输速率,提出了一种基于模拟退火算法的多基站协作功率分配方案.该方案将系统传输速率最大化问题转化为适应度函数的优化问题,通过合理设置退火过程中冷却进度表的参数,得出了功率分配的近似最优解.数值分析结果表明,该算法的收敛性能不受基站和用户数量的限制.此外,相对于遗传算法,本算法在同等条件下使系统总速率提升了3.6 bit/s,并且收敛速度较快.