基于配网的5G通信承载网资源分配近优算法
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引用本文:隋 宇 , 陈亚彬,曹华珍,韦 斌.基于配网的5G通信承载网资源分配近优算法[J].计算技术与自动化,2021,(4):79-83
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隋 宇 , 陈亚彬,曹华珍,韦 斌 (广东电网有限责任公司 电网规划研究中心广东 广州 510000) 
中文摘要:第五代网络技术条件下配电通信网互联可构成大规模光传送网。为解决路由选择、子载波数分配、各子载波调制阶数分配的联合优化问题,结合最短k路由算法,提出一种近优算法。为了检验该近优方法的有效性,以一个中等规模网络为例,将其与基于路由穷举的最优方法对比,结果表明,所提出的近优方法以较小的k值就可以求得联合优化问题的最优解,而计算时间较基于路由穷举的联合优化最优算法有显著降低。
中文关键词:配电网  光正交频分复用  子载波分配  软件定义网络  k最短路
 
Near Optimal Algorithm for Resource Allocation in the Communication Network of the Fifth Generation Based on Distribution Power Grid
Abstract:Inter-connection of communication networks for power distribution network in the era of fifth generation network may form large-scale optical transfer networks. In order to solve the joint optimization of routing, sub-carrier allocation and modulation scheme allocation for each subcarrier in,a near optimal algorithm based on k-shortest paths is proposed. To verify the efficiency of the proposed near-optimal algorithm, a medium scale optical transfer network is chosen as the example. Comparisons are done between the near optimal algorithm and the optimal algorithm based on exhaustive route searching for joint routing, subcarrier allocation and allocation of modulation scheme for each subcarrier. The comparisons show that a small value of k for the near optimal algorithm suffices to obtain an optimal solution for the joint optimization problem whilst the time needed is apparently reduced in the case of a medium scale network.
keywords:power distribution network  optical orthogonal frequency multiplexing  subcarrier allocation  software defined network  k shortest path
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