支持ONU模块独立不连续收发数据的节能方法

doi:10.11959/j.issn.1000-436x.2015220

Abstract

Abstract:

To effectively solve the contradiction between energy-saving and packet delay performance in green passive optical network,an energy-saving scheme supporting ONU modularization with independent-discontinuous transceiving is proposed.Utilizing the technology of optical network unit modularization,each module could switch to sleep or awake mode independently and transmit data in specified time slots discontinuously.Simultaneously,to enhance the quality of service of the overall network,the real-time packets are transmitted in the first sub-cycle based on the sub-cycle division strategy.Furthermore,an independent bandwidth allocation algorithm is proposed,which makes the scheme have more advantages in the asymmetric network traffic scenarios.Simulation results verify that the proposed scheme further reduce the network energy consumption on the premise of guarantee the packet delay.

Key words: passive optical network, optical network unit, modularization, independent discontinuous, energy-saving, packet delay

Yu XIONG,Jian-jun GUAN,Ru-yan WANG. Energy-saving scheme supporting ONU modularization with independent-discontinuous transceiving[J]. Journal on Communications, 2015, 36(7): 71-79.

Figures/Tables 10

符号	含义
Bⁿ	第n个轮询周期的总带宽
$k_{R P}^{n}$	第n个轮询周期内请求实时业务带宽的ONU数量
$k_{N P}^{n}$	第n个轮询周期内请求非实时业务带宽的ONU数量
$B_{g, u R P}^{n}$	第n个轮询周期内ONU实时业务保证带宽
$B_{g, u N P}^{n}$	第n个轮询周期内ONU非实时业务保证带宽
$B_{u R P, i}^{n}$	第n个轮询周期内ONU_i实时业务带宽请求
$B_{u N P, i}^{n}$	第n个轮询周期内ONU_i非实时业务带宽请求
$U B_{u R P, i}^{n}$	第n个轮询周期内授予ONU_i的实时业务带宽
$U B_{u N P, i}^{n}$	第n个轮询周期内授予ONU_i的非实时业务带宽
T_g	保护时隙
R_u	上行链路速率
R_d	下行链路速率
N	仿真周期数
K	ONU数量

References 17

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字段	大小/byte
目的地址	6
源地址	6
类型=8808	2
操作码	2
时间戳	4
标识字节	4
T_cycle周期	2
GATE帧长度	2
ONU₁实时业务上行开始时间	4
ONU₁实时业务上行长度	2
ONU₁非实时业务上行开始时间	4
ONU₁非实时业务上行长度	2
ONU₁实时业务下行开始时间	4
ONU₁实时业务下行长度	2
ONU₁非实时业务下行开始时间	4
ONU₁非实时业务下行长度	2
ONU₁GATE帧接收时间	4
ONU₂…	...
…	...
ONU_n…	...
…	...
FCS	4

参数	数值
P_ua	1.63 W
P_da	1.55 W
P _us	0.15 W
P _ds	0.15 W
P_base	0.7 W
L_G	480 byte(16 ONU)
T_ov	125 μs
T_g	5 μs
L_R	64 byte
RTT	200 μs
T_DBA	10 μs

Energy-saving scheme supporting ONU modularization with independent-discontinuous transceiving

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