作者:
C Pan，Y Hu，J Shen
关键词:
broadband networks ； numerical analysis ； optical fibre subscriber loops ； telecommunication network reliability ； broadband access networks ； cascaded passive optical networks ； numerical simulations ； protection strategy ； reliability cost ratio ； two-stage splitter
摘要:
Passive Optical Network (PON) is the promising technology in future broadband access networks. Protection is an important and imperative issue in PON system while protection of cascaded PON (with two-stage splitter or more) system has been ignored. This paper presents a comprehensive study on protection strategy for cascaded PON system. The reliability and protection issues of cascaded PON are studied using theoretical analysis and numerical simulations. A function called Reliability Cost Ratio (RCR) is presented to evaluate the performance of different protection strategies. Simulation shows the variation trend of RCR with different splitter schemes.
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