Research On Key Technologies And Applications Of 10Gbps Ethernet Optical Networks

As the infrastructure for broadband and other access services in the future,Passive Optical Networks(PON) has become increasingly popular.The application of highdefinition IPTV and high-definition VoD(Video-On-Demand) brings about the access network with larger bandwidth.The emerging IEEE 802.3av(10G-EPON) standard, being the latest and fastest time-division multiple access(TDMA) PON technology,has vast potential for future development.Supported by the National High Technology Research and Development Program of China(863 Program) project "Gigabits Ethernet Based on Passive Optical Networks",the researchers in this dissertation launch a theoretical and experimental study on the 10G-EPON.The whole structure of this thesis is as follows:(1) Studied the link power budget model,and analysis obtained by calculating the PDM layer power budget value,whereby the result of the 10G-EPON physical media dependent sublayer(PDM) have been classified;and made a 10G-EPON wavelength assignment of a program,thereby ensuring the 10G-EPON for backward compatibility.(2) Through the theoretical analysis and calculation on FEC conding theory, according to calculations chose the 10G-EPON in the FEC encoding.Based on the encoding of the RS(223,255),we define the FEC frame structure in 10G-EPON which enables easier synchronization,and elaborate the realization of FEC in 10G-EPON.(3) We propose the protocol stack model in which 10G and 1G can coexist in EPON. In addition,we conclude that the timing parameter of 10G-EPON conforms with those of 1G-EPON.(4) Based on the comprehensive study of existing dynamic bandwidth allocation algorithm,we propose another one which guarantees minimum bandwidth and is applicable to 10G/1G EPON,and we carry out simulation results.(5) We propose the solution to guarantee the security of 10G-EPON and design a QoS strategy on which we will give detailed introduction. (6) We introduce the interoperability of 1G-EPON and get to the root cause of it.We also propose the scheme of realization of the 10G-EPON interoperability.