0:00 - Scrambling (B8ZS)
#Scrambling is a technique that does not increase the number of bits and does provide synchronization. Problem with technique like Bipolar AMI(Alternate Mark Inversion) is that continuous sequence of zero’s create synchronization problems one solution to this is Scrambling.
There are two common scrambling techniques:
B8ZS(Bipolar with 8-zero substitution)
HDB3(High-density bipolar3-zero)
#B8ZS ( #Bipolarwith8ZeroSubstitution ) –
This technique is similar to Bipolar AMI except when eight consecutive zero-level voltages are encountered they are replaced by the sequence,”000VB0VB”.
Note –
V(Violation), is a non-zero voltage which means signal have same polarity as the previous non-zero voltage. Thus it is violation of general AMI technique.
B(Bipolar), also non-zero voltage level which is in accordance with the AMI rule (i.e.,opposite polarity from the previous non-zero voltage).
Data Communications and Computer Networks full playlist:
https://youtube.com/playlist?list=PLncy2sD7w4YpbMkd6cF0kVH8SUM-VrpeQ
Our other completed playlist are :
1. Operating System (OS) : https://youtube.com/playlist?list=PLncy2sD7w4Yr3ZbiP_ipAjgjDRn86N_tT
2. Theory Of Computation (TOC) : https://youtube.com/playlist?list=PLncy2sD7w4YqBniaSEkOtzcZa3UNtWpMF
3. Software Engineering : https://youtube.com/playlist?list=PLncy2sD7w4YqcWltmTBXgCiyLB9llT703
4. Microprocessor 8085 : https://youtube.com/playlist?list=PLncy2sD7w4YrRdWllCJzNTB69yR9L69Fi
#ComputerNetworks
#PhysicalLayer
#DigitalTransmission
#CSEBanglaTutorial
#Lecturelia
#AsadNomanee
#DataCommunication
#OSIModel
#TheOSIModel
