Congestion avoidance based on artificial bee colony algorithm for routing and wavelength assignment in optical satellite networks

被引：3

作者：

Liu, Yeqi ^{[1
,2
]}

Zhang, Qi ^{[1
,2
]}

Xin, Xiangjun ^{[1
,2
]}

Rao, Lan ^{[3
]}

Tao, Ying ^{[4
]}

Cao, Guixing ^{[3
]}

Shen, Yufei ^{[3
]}

Li, Yiqiang ^{[1
,2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China

[2] Beijing Univ Posts & Telecommun, Beijing Key Lab Space Ground Interconnect & Conve, Beijing, Peoples R China

[3] Beijing Inst Technol, Beijing, Peoples R China

[4] China Acad Space Technol, Beijing, Peoples R China

来源：

OPTICAL ENGINEERING | 2021年 / 60卷 / 03期

关键词：

optical satellite network; load balancing; artificial bee colony; routing and wave-length assignment; congestion avoidance; SPACE NETWORK;

D O I：

10.1117/1.OE.60.3.036109

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Massive data traffic demand for satellite networks has been increased with the emergence of global broadband services. Due to limited onboard processing capacity and imbalanced distribution of global traffic, severe link congestion may occur in hot spots, deteriorating the performance of the whole network. A link cost modification applied in load balancing algorithm based on artificial bee colony is proposed for routing and wavelength assignment problem to distribute traffic in advance. Moreover, congestion avoidance based on wavelength utilization is designed for unexpected congestion to minimize the adverse impact of congestion on network performance. Experiment results show that the method we proposed realizes high performance in communication success rate and average transmission delay and also achieves the maximum utilization of wavelength utilization under the condition of low blocking rate and the equalization of traffic load. (C) 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：14

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