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| Online Mapping Algorithm Based on Reliability for 5G Network Slicing |
| TANG Lun ZHAO Guofan YANG Heng ZHAO Peipei CHEN Qianbin |
| (Key Laboratory of Mobile Communication Technology, Chongqing University of Post and Telecommunications, Chongqing 400065, China) |
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Abstract To meet the diversified demand of 5G Network Slicing (NS), while ensuring the reliability of slice, to achieve the optimal allocation of network resources, considering the dynamic mapping and lightweight reliable mapping problem of network slicing, this paper proposes a joint allocation scheme of computing resources, link resources and the spectrum resources of Radio Remote Unit (RRU). Firstly, a multi-objective resource
allocation model oriented to reliability constraints is established, and the Lyapunov optimization model is introduced to ensure the queue stability and optimize the resource allocation. Then, the virtual node mapping algorithm based on queue stability and virtual link mapping algorithm based on reliability are proposed.
Finally, the time is discretized into a series of continuous time windows, and the online network slice mapping algorithm is implemented by using the time window dynamic processing of the incoming network slice request. Simulation results show that the proposed algorithm improves resource utilization and guarantees network reliability.
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Received: 28 November 2017
Published: 07 June 2018
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| Fund:The National Natural Science Foundation of China (61571073), The Chongqing Science and Technology Commission Key Industry Common Technology Innovation Special Project (cstc2015zdcy-ztzx40008) |
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Corresponding Authors:
TANG Lun
E-mail: tangl@cqupt.edu.cn
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