Holding-Time-Aware Multipath Routing and Spectrum Allocation Algorithm in SD-EON with Traffic Grooming

Fig. 6. Resource occupation of different algorithms. (a) Network topology; (b) resource occupation of different links (frequency domain); (c) resource occupation of l_CD; (d) resource occupation of l_AB; (e) resource occupationof l_BC; (f) resource occupation of l_EC

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Fig. 7. Resource occupation of each link after the path r₆ is connected by HMRSA-TG algorithm.(a)l_AB;(b)l_BC;(c)l_EC;(d)l_CE;(e)l_DC;(f)l_CD

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Fig. 8. Resource occupation of each link after the path r₆ is connected by MPFA algorithm. (a)l_AB;(b)l_BC;(c)l_EC;(d)l_CE;(e)l_DC;(f)l_CD

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Fig. 9. Blocking rate performance of different algorithms. (a) NSFNet; (b) USFNet

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Fig. 10. Spectrum utilization of different algorithms. (a) NSFNet; (b) USFNet

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Table 1. Correspondence between modulation format and transmission distance ^[11]
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Table 1. Correspondence between modulation format and transmission distance ^[11]
Rate/(Gbit·s^-1) Modulation format Channel width/GHz Reach/km
40 QPSK 25.0 1800
40 BPSK 50.0 2500
100 QPSK 37.5 1700
100 BPSK 50.0 2000
400 16QAM 75.0 600
400 QPSK 125.0 1200

Table 2. Comparison of three algorithms

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Table 2. Comparison of three algorithms

Algorithm	Connection established successfully		Number of FS occupied by request				Number of FS occupied by guard bandwidth				Total number of occupied FS
Algorithm	r₆	r₇		r₆		r₇		r₆		r₇		r₆		r₇
HMRSA-TG	yes	yes	26		34		9		5		35		39
MPFA^[11]	yes	no	24		N/A		13		N/A		37		N/A
HTBalancing^[14]	no	no	N/A		N/A		N/A		N/A		N/A		N/A

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Liu Tongtong, He Rongxi, Chen Xiaojing. Holding-Time-Aware Multipath Routing and Spectrum Allocation Algorithm in SD-EON with Traffic Grooming[J]. Laser & Optoelectronics Progress, 2020, 57(21): 210602

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Feb. 13, 2020

Accepted: --

Published Online: Oct. 26, 2020

The Author Email: He Rongxi (hrx@dlmu.edu.cn)

DOI:10.3788/LOP57.210602

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Correspondence between modulation format and transmission distance [11]

Table 1. Correspondence between modulation format and transmission distance [11]

Table 2. Comparison of three algorithms

Table 2. Comparison of three algorithms

Table 1. Correspondence between modulation format and transmission distance ^[11]

Table 1. Correspondence between modulation format and transmission distance ^[11]