计算机科学 ›› 2021, Vol. 48 ›› Issue (11): 124-132.doi: 10.11896/jsjkx.201100205
徐旭1, 钱丽萍1, 吴远2
XU Xu1, QIAN Li-ping1, WU Yuan2
摘要： 针对移动终端设备本地计算资源有限的现状,提出了一种结合移动边缘计算机制的区块链系统。通过综合考虑系统中移动终端设备和边缘服务器的计算资源分配,以及移动终端设备的收益分配,提出了一个联合优化问题来最大化移动终端设备和边缘服务器的系统效用。为了快速求解该联合优化问题,设计了一种基于循环块坐标下降思想的多层分解算法。首先给定收益分享变量的值,通过对相应的子问题进行求解,得到移动终端设备以及边缘服务器的计算资源分配结果。然后把得到的结果作为固定的值继续求解移动终端设备的收益分享问题。最后,交替优化两部分变量直到算法收敛。仿真结果显示,所提算法能快速得到联合优化问题的最优解并有效提升区块链系统的系统效用。
中图分类号:
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