TWDM-PON中时延约束节能动态波长带宽分配算法

doi:10.11959/j.issn.1000-436x.2018160

通信学报 ›› 2018, Vol. 39 ›› Issue (9): 110-121.doi: 10.11959/j.issn.1000-436x.2018160

• 论文Ⅱ：光传输系统与光网络优化 • 上一篇下一篇

TWDM-PON中时延约束节能动态波长带宽分配算法

于存谦,唐明珠,何荣希()

大连海事大学信息科学技术学院，辽宁大连 116026

修回日期:2018-08-16 出版日期:2018-09-01 发布日期:2018-10-19
作者简介:于存谦（1983-），男，辽宁沈阳人，博士，大连海事大学讲师，主要研究方向为光网络技术。|唐明珠（1993-），女，辽宁辽阳人，大连海事大学硕士生，主要研究方向为光网络技术。|何荣希（1971-），男，四川南充人，博士，大连海事大学教授，主要研究方向为光网络和无线网络技术。
基金资助:
国家自然科学基金资助项目(61371091);国家自然科学基金资助项目(61801074);大连海事大学“十三五”重点科研基金资助项目(3132016318);中央高校基本科研业务费专项基金资助项目(3132017078)

Energy-efficient dynamic wavelength and bandwidth allocation algorithm with delay constraint for time and wavelength division multiplexed passive optical networks

Cunqian YU,Mingzhu TANG,Rongxi HE()

College of Information Science and Technology,Dalian Maritime University,Dalian 116026,China

Revised:2018-08-16 Online:2018-09-01 Published:2018-10-19
Supported by:
The National Natural Science Foundation of China(61371091);The National Natural Science Foundation of China(61801074);The 13th Five-Year Key Research Project of Dalian Maritime University(3132016318);The Fundamental Research Funds for Central Universities(3132017078)

摘要/Abstract

摘要：

基于离线调度方式和节点模块化设计思想，提出一种时延约束节能动态波长带宽分配算法。该算法考虑OLT和ONU两端协同节能，在保证分组时延约束条件下，尽可能减少激活波长数和延长轮询周期长度。同时，尽量集中OLT和ONU端上/下行传输时间，减少其状态转换次数，延长其处于低功耗状态时间，并避免信道出现高能耗空隙。仿真结果表明所提算法在保证分组时延约束的前提下，有利于降低OLT端和ONU端能耗以及全网总能耗。

关键词: 无源光网络, 时分波分复用, 动态波长带宽分配, 节能, 时延约束

Abstract:

Based on offline scheduling and node modular design,an energy-efficient dynamic wavelength and bandwidth allocation algorithm with the delay constraint (EE-DWBA-DC) was proposed.Optical line terminal (OLT) and optical network units (ONU) were considered to save energy.Under the constraint of packet delay,the number of active wavelengths could be reduced as much as possible and the length of polling cycle was increased.At the same time,the uplink and downlink transmission time of OLT and ONU were concentrated to reduce the state conversion times and extend its low-power duration.In addition,the high energy consumption voids of channels were attempted to be minimized.The simulation results verify that the proposed algorithm can reduce the energy consumption of OLT and ONU and the total energy consumption of the whole network under the premise of guaranteeing packet delay constraints.

Key words: passive optical network, time and wavelength division multiplexing, dynamic wavelength and bandwidth allocation, energy saving, delay constraint

中图分类号:

TN929.18

于存谦,唐明珠,何荣希. TWDM-PON中时延约束节能动态波长带宽分配算法[J]. 通信学报, 2018, 39(9): 110-121.

Cunqian YU,Mingzhu TANG,Rongxi HE. Energy-efficient dynamic wavelength and bandwidth allocation algorithm with delay constraint for time and wavelength division multiplexed passive optical networks[J]. Journal on Communications, 2018, 39(9): 110-121.

图/表 7

图1

图2

表1

仿真参数设置"

参数	数值	参数	数值
T_g	5 μs	$P_{r x}^{O N U}$	4.4 W
T_ov	2 ms	$P_{base}^{ONU}$	0.7 W
$P_{t u n e}^{O L T}$	11 W	$P_{tx}^{OLT}$	6.875 W
$P_{t u n e}^{O N U}$	5.1 W	$P_{rx}^{OLT}$	4.125 W
$P_{t x}^{O N U}$	0.684 W	$P_{base}^{OLT}$	64 W

表1

图3

图4

图5

图6

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TWDM-PON中时延约束节能动态波长带宽分配算法

Energy-efficient dynamic wavelength and bandwidth allocation algorithm with delay constraint for time and wavelength division multiplexed passive optical networks

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