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𝐖𝐡𝐚𝐭 𝐢𝐬 𝐎𝐒𝐍𝐑

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𝐖𝐡𝐚𝐭 𝐢𝐬 𝐎𝐒𝐍𝐑 ? & 𝐇𝐨𝐰 𝐢𝐭 𝐜𝐚𝐧 𝐛𝐞 𝐌𝐞𝐚𝐬𝐮𝐫𝐞𝐝? OSNR Margin (Optical Signal-to-Noise Ratio Margin) is a critical parameter in optical communication systems that measures the difference between the actual OSNR and the minimum OSNR required for error free signal detection (typically defined by a bit error rate threshold). It provides insight into how much "headroom" or tolerance a system has before it fails to maintain acceptable performance. 𝐇𝐨𝐰 𝐢𝐭 𝐜𝐚𝐧 𝐛𝐞 𝐌𝐞𝐚𝐬𝐮𝐫𝐞𝐝=> OSNR Margin=Actual OSNR−Required OSNR 𝑰𝒎𝒑𝒐𝒓𝒕𝒂𝒏𝒄𝒆: Indicates the system's robustness against impairments like noise, dispersion, and nonlinear effects. Higher OSNR Margin means the system is more resilient to degradation over time or due to network changes. 𝑭𝒂𝒄𝒕𝒐𝒓𝒔 𝑨𝒇𝒇𝒆𝒄𝒕𝒊𝒏𝒈 𝑶𝑺𝑵𝑹 𝑴𝒂𝒓𝒈𝒊𝒏=> Fiber length and quality: Longer distances or low-quality fibers increase attenuation and amplify noise. Amplifiers: (EDFAs) and Raman amplifi...

𝐁𝐚𝐜𝐤𝐡𝐚𝐮𝐥𝐢𝐧𝐠 𝐑𝐀𝐍

 𝐁𝐚𝐜𝐤𝐡𝐚𝐮𝐥𝐢𝐧𝐠 𝐑𝐀𝐍 





- ran is Radio Access Network

- it refer to the part from the mobile network thats responsible to transferring traffic to aggregation and core netw

- RAN support variety of mobile generations like GSM , WCDMA , LTE and 5G

- RAN has alot of types due to network moderanization like virtual ran and open ran

- backhauling means transfer the user traffic from ran through microwave links as an example towards core

- so we can consider microwave links installed and connected towards BSC , RNC , SGW MME is part of the backhaul network

- legacy TDM network was the traditional way to backhaul the traffic

- TDM works wuth PDH / SDH Transmission protocols

- usually 2G use pdh traffic and 3G use ATM over E1 ( pdh too )

- 4G & 5G use Ether Traffic over IP

- some countries shutdown GSM network and some others shutdown 3G , some countries use volte to transmit voice over 4G network

- currently we are focusing on full ip moderanization for site

- full ip means transfering all ran traffic over packets , we can use routers with fiber to support higher capacity instead of microwave links

- pdh no longer needed then we have to dismantle E1 links and we can connect router instead of microwave links

- in case of we still use 2G for voice calls , we can shutdown 3G and use SIU or TCU cards to convert E1s to be over packets

- then the architecture will be full ip , we will connect 2G to SIU card from E// as an example then to the router , 4G and 5G also connected to the router

- contact me if you need to master Microwave Tx , Optical WDM OTN & IP Transmission with practical courses

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