Research On EPON FTTH Access Methods In Rural And Remote Areas

In our country sparsely-populated rural areas，villages strewn at random and comein many shapes and sizes，change the ADSL to all-in-one form，or converted into FTTBform，finally still using metal wire or wireless as transmission medium. After the pastdecade，PON technology gradually from APON technology，BPON development to themost sophisticated E/GPON technology. For many years the development of EPON fibernetwork access is to continue to extend to users，and ultimately the process of fiber tothe home，that is FTTH.In2011，Liaoning Branch of China Telecom decided FTTH development to ruralareas，but it FTTH network construction over the years to stay in urban areas，rural FTTHconstruction with little experience，but we found the difference between rural and urbandistrict is large，the problem is greater in the actual development process. City of FTTHmostly by one，the secondary spectral optical fiber door，but this is a prerequisite forusing EPON network，community focused，closer and convenient planning，building locationinside the village and the same. In the shapes of the complex terrain，rural countryside，city of the FTTH experience do not apply.Direct seemingly mountain village and village，distance is not far，but in actualconstruction increase access distance around the mountains， so many rural needlong-distance FTTH access quantity of rural and remote areas. And often more accessto remote countryside cable connectors，too much failure more than the original light linkbudget，the single solution to droop big very，usually adopt blindly ways to reduce thespectral ratios increase light power. The access to remote villages are often more cableconnector，the light fades too larger than the original optical link budget，the currentapproach to solving very large single lumen，current approaches to solve extremely greatlumen is single. Commonly used solution is reduced by blindly to enhance optical powersplitting ratio. For the villages often give up more than20km FTTH access. Consideringthe demand of the market，enterprise research distance country’s FTTH access methodis imperative. This paper studies the MPCP protocol in EPON system，in-depth analysis of thecommunication process，put forward the methods and techniques of EPON network remoteaccess，and thus，without any increase in the premise of relay points，the current networkcover long distance villages，achieve a stable access service about the FFTH. After Thecurrent network cover long distance villages，against problem that long-distance villagecan’t achieve access owing to the big luminous decay，research the hardware of the system,and study deeply about principles，techniques of FEC coding enhance optical link budget,improve method that the network complete steadily by improving the optical link budget，eventually achieve a stable FTTH access services. This paper summarizes the methodsand research practice to increase the stability of network to access distance to expand ruralFTTH. In this paper，the expanding rural FTTH access distance increasing network runningstability of the method for the practical summary and research. If the research of this papercan achieve，enterprise’s fixed-line business advantages will improve in the rural areas，and reduce investment and improve efficiency for the enterprise. At the same time，thisarticle research work and achievements are based on EPON network which providestechnical reference to the research on remote access.