The modified star-ring architecture for high-capacity subcarrier multiplexed passive optical networks

Author

Lin, Wen-Piao ; Kao, Ming-Seng ; Chi, Sien

Author_Institution

Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

19

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

32

Lastpage

39

Abstract

A modified star-ring architecture (MSRA) consisting of a star network on the upper level and many concatenated ring subnets on the lower level is proposed for subcarrier multiplexed passive optical network (SCM-PON). The upper level star network ensures high network capacity and its weakness in reliability is overcome by the concatenated ring subnets with self-healing capabilities. The self-healing function can be performed at remote nodes (RNs) by using optical switches (OS) to reconfigure the ring subnets if any link fails. Moreover, we design the cascade add/drop transceiver (CAT) structure in the lower level ring subnets to completely eliminate the optical beat interference (OBI) problem and achieve an OBI-free optical network. Finally, we set up an experimental network to demonstrate the feasibility of this cost-effective survivable structure

Keywords

optical fibre subscriber loops; optical receivers; optical transmitters; subcarrier multiplexing; telecommunication network reliability; transceivers; OBI-free optical network; cascade add/drop transceiver; concatenated ring subnets; cost-effective survivable structure; high network capacity; high-capacity subcarrier multiplexed passive optical networks; link failure; lower level; modified star-ring architecture; optical beat interference; optical switches; reliability; remote nodes; self-healing capabilities; self-healing function; subcarrier multiplexed passive optical network; Concatenated codes; Interference; Network topology; Optical fiber networks; Optical network units; Optical switches; Passive optical networks; Performance analysis; Quality of service; Transceivers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.914482

Filename

914482