Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (8): 2578-2587.doi: 10.12305/j.issn.1001-506X.2023.08.33

• Communications and Networks • Previous Articles     Next Articles

Traffic load balancing routing optimization algorithms in SDN-driven networks

Xiaofei MIN, Jing LI, Zhaohui ZHANG   

  1. School of Mathematics and Statistics, Xidian University, Xi'an 710126, China
  • Received:2022-03-31 Online:2023-07-25 Published:2023-08-03
  • Contact: Jing LI

Abstract:

Under the context of the explosion of the traffic data in 5G network, two software-defined networking-driven (SDN) routing searching optimization algorithms are proposed and evaluated to solve the traffic load balancing problems of the traffic data in 5G network. Firstly, a multi-constraints data transmission routing selection model of SDN is established. Secondly, a traffic load balancing scheme with breadth-first-search(LBB) routing optimization algorithm is proposed to solve the model. In the process of the breadth-first-search, LBB sets a dynamic traffic threshold to monitor the link in real time, which aims to find the optimal data transmission routing from the source node to the target node. To further reduce or even avoid the space overhead caused by the unnecessary searching, an iterative deepening search with depth-first-search(IDDFS) routing optimization algorithm is proposed, which selects the link with the highest available bandwidth in the searching process. During the routing searching, IDDFS optimizes the iterative optimization with the policy of depth-first-search. Simulation results show that the proposed algorithms have the excellent performance in resource utilization and network throughput.

Key words: 5G network, software-defined networking, traffic load balancing, routing algorithm

CLC Number: 

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