Chinese Journal on Internet of Things ›› 2021, Vol. 5 ›› Issue (1): 36-52.doi: 10.11959/j.issn.2096-3750.2021.00205

Special Issue: 边缘计算

• Topic: Edge Intelligence and Fog Computing in IoT • Previous Articles     Next Articles

Multi-access edge computing offloading in maritime monitoring sensor networks

Xin SU1, Ziyi WANG1, Yupeng WANG2, Siyuan ZHOU3   

  1. 1 College of Internet of Things Engineering, Hohai University, Changzhou 213002, China
    2 College of Electronic and Information Engineering, Shenyang Aerospace University, Shenyang 110136, China
    3 College of Computer and Information, Hohai University, Nanjing 211106, China
  • Revised:2021-01-26 Online:2021-03-30 Published:2021-03-01
  • Supported by:
    The National Natural Science Foundation of China(61801166);The Fundamental Research Funds for the Central Universities(B210202091);The Safety Enhancement Construction Research Fund of Civil Aviation Administration of China

Abstract:

Multi-access edge computing can effectively guarantee the low-latency, high-reliability data transmission of ocean monitoring sensor networks and various related maritime applications.In the offshore scenario, two offloading models of multi-user single-hop unicast and multi-user multi-hop unicast were established in combination with the distribution of edge computing resources.The mixed integer nonlinear programming was used to separate optimization targets and effectively allocate transmission power.The unloading decisions were made by improving the traditional artificial fish swarms algorithm.The results show that the proposed optimization algorithm can reduce the network delay by nearly 19% compared with the traditional scheme.In the far-sea scenario, a multi-user single-hop unicast offloading model was established, and a reasonable channel allocation algorithm was proposed based on the network connection probability.The results show that when the network connection time is sufficient, the number of allowable sub-channels can be increased to reduce the network delay.When the network connection time is limited, the number of unloaded marine user equipment can be controlled to ensure the network transmission delay.

Key words: maritime monitoring sensor network, multi-access edge computing, artificial fish swarm algorithm, channel allocation

CLC Number: 

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