| 一种基于C-RAN的BBU负载均衡优化算法 |
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| 引用本文： | 王亚鑫,杨大成. 一种基于C-RAN的BBU负载均衡优化算法[J]. 北京邮电大学学报, 2018, 41(5): 115-119. DOI: 10.13190/j.jbupt.2018-242 |
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| 作者姓名： | 王亚鑫 杨大成 |
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| 作者单位： | 北京邮电大学 信息与通信工程学院, 北京 100876 |
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| 摘 要： | 基于软定义无线电（SDR）和虚拟机（VM）迁移技术的云无线接入网（C-RAN）是第5代移动通信系统（5G）系统中的一种灵活架构，基于该架构提出了一种优化算法，可以根据系统状态动态计算基带处理单元（BBU）的最佳负载范围，并考虑用切换效率来控制额外的资源消耗.仿真结果表明，该算法能够自动选取合适的BBU工作负载范围，并在较低的切换损耗下维持BBU在该范围内工作.
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| 关 键 词： | 云无线接入网 软定义无线电 负载均衡 优化算法 |
| 收稿时间： | 2018-09-12 |
An Optimization Algorithm for BBU Load Balancing in C-RAN |
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| WANG Ya-xin,YANG Da-cheng. An Optimization Algorithm for BBU Load Balancing in C-RAN[J]. Journal of Beijing University of Posts and Telecommunications, 2018, 41(5): 115-119. DOI: 10.13190/j.jbupt.2018-242 |
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| Authors: | WANG Ya-xin YANG Da-cheng |
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| Affiliation: | School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | Cloud radio access network (C-RAN) based on software defined radio (SDR) and virtual machine (VM) migration is a flexible architecture in the fifth generation of mobile communications system (5G). Based on the system model, we propose an optimization algorithm to choose the best base band unit (BBU) working load instead of configuring it as a constant value according to experience. The switching quality is also introduced to control the extra resource cost caused by the switching process. Simulation results show that the proposed algorithm can calculate the optimized working range for each BBU and keep the BBUs working in optimized range with low switching costs. |
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| Keywords: | cloud radio access network software defined radio load balance optimization algorithm |
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