混合复用无源光网络中带有灰色预测的高效动态资源分配策略

doi:10.11999/JEIT151201

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Abstract

With the access distance of users increasing in hybrid Time and Wavelength Division Multiplexing Passive Optical Networks (TWDM-PONs), the round trip time becomes very long, and idle time is increased in the network. It leads to the problem of bandwidth waste. In order to solve this issue, an efficient and hybrid dynamic resource allocation strategy with Grey Prediction (GP) is proposed. In order to decrease the network delay performance and avoid the waste of resource, the Grey Prediction model is utilized to predict the arrival data during the idle time and dynamically allocate bandwidth to optical network units. Utilizing the finishing time difference of data transmission on wavelengths, the higher transmission efficiency and load balance of wavelengths can be achieved by constantly adjusting the mode of wavelengths transmission periodically. The simulation results show that the proposed hybrid strategy can effectively eliminate the idle time to avoid waste of bandwidth and reduce network delay while making wavelengths efficiently used to improve resource utilization rate.

Key words： Passive Optical Networks (PONs) Time and Wavelength Division Multiplexing (TWDM) Dynamic Resource Allocation (DRA) Idle time Grey Prediction (GP) Resource utilization rate

Received: 29 October 2015 Published: 03 June 2016

PACS:

TN915.63

Fund:

The National Natural Science Foundation of China (61401052), The Science and Technology Project of Chongqing Municipal Education Commission (KJ1400418, KJ1500445), The Ph.D. Start-up Fund of Chongqing University of Posts and Telecommunications (A2015-09)

Corresponding Authors: XIONG Yu E-mail: xiongyu@cqupt.edu.cn

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	WANG Ruyan
	JIANG Jing
	XIONG Yu
	TANG Jianbo

Cite this article:

WANG Ruyan,JIANG Jing,XIONG Yu等. An Efficient Dynamic Resource Allocation Strategy with Grey Prediction in Hybrid Multiplex Passive Optical Network[J]. JEIT, 2016, 38(8): 1880-1887.

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http://jeit.ie.ac.cn/EN/10.11999/JEIT151201 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I8/1880

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