Time Synchronization over Ethernet Passive Optical Networks

被引：10
|
作者：
Luo, Yuanqiu [1 ]
Effenberger, Frank J. [3 ]
Ansari, Nirwan [2 ]
机构：
[1] Huawei Technol, Adv Technol Dept Futurewei, Bridgewater, NJ USA
[2] New Jersey Inst Technol, Newark, NJ 07102 USA
[3] Huawei Technol, FTTx, Adv Technol Dept, Bridgewater, NJ USA
来源：
IEEE COMMUNICATIONS MAGAZINE | 2012年 / 50卷 / 10期
关键词：
D O I：
10.1109/MCOM.2012.6316787
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Time synchronization is critical when using Ethernet passive optical networks as a mobile backhaul to support time-sensitive services. This article presents an overview of time synchronization methods over EPON. It outlines the requirements and challenges particular to the EPON link delay asymmetry, and presents the technical solution recently approved by IEEE. Performance analysis and prototype results demonstrate that this technical solution meets various time synchronization requirements. The article then reviews the major standard efforts on EPON time synchronization that employ this solution, IEEE Std 802.1AS (TM)-2011 Clause 13. With this standard in place, EPON can play its part in time distribution networks.
引用
收藏
页码：136 / 142
页数：7
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