Question.5613 - After performing the CRC calculation for a data frame of 1200 bits with a generator polynomial of x⁴+x ³+x ²+1 and obtaining a remainder of 1011, determine whether the data frame contains an error, and if so, calculate the correct frame after error correction. In the same network environment, the sender transmits a window of 8 frames numbered from 0 to 7 using Selective Repeat ARQ. If frames 2, 4, and 7 are received by the receiver successfully, calculate the cumulative acknowledgment number sent back to the sender and the expected next sequence number for transmission.
Answer Below:
Assignment Activity Unit 3CS 2204-01 - AY2026-T2Question 1: CRC Error Detection and CorrectionStep 1: Interpretation of Generator and Remainder g(x)=...
Assignment xxxxxxxx Unit xx - x AY xx Question xxx Error xxxxxxxxx and xxxxxxxxxxxxxx Interpretation xx Generator xxx Remainder x x x x x where xxx remainder xxxxxxxxx g x binary xxxx the xxx remainder xxxx be xxxxxxxx after xxxxxxxx the xxxxxxxx transmitted xxxxx by x x xxxxx is xxxx Determination xxxxx the xxxxx exists xxxxxxxxxx Therefore xxx data xxxxx is xxxxxx an xxxxx Step xxxxxxxxxx of xxx Frame xxxxxxx of xxxxxxxx S x which xx equal xx observed xxxxxxxxx Introducing xxx bit xxxxxxxx k x transmitted xxxxxx here xxx formula xxx xk xxx g x S x Calculation xxx the xxxxx of xxx transmitted xxxxx length xx equal xx bits xxxxxxx In xxx current xxxxxxxx cyclic xxxxxxxxxx check xxx has xxxx performed xxxx -bit xxxx frame xxxxxxxxx the xxxxxxxxx polynomial x x x x x It xxxxxxxxxxx to xxx binary xxxxxxx The xxxxxxxxx is xxxxx the xxxxxxxx From xxx perspective xxx correctly xxxxxxxx frame xxxx to xxxxxxx the xxxxxxxxx of xx the xxxxxxxx remainder xx non-zero xxxxx indicates xxxxxxxx frame xxxxxxxx at xxxxx one xxxxxxxxxxxx error xxx is xxxxxx designed xx the xxxxx detection xxxxxxxxx rather xx error xxxxxxxxxx system xx is xxxx noted xxxx the xxxxxxxxxx errors xxx be xxxxxxxxx if xxx syndrome xxx identify x known xxxxx pattern xxxxxxxxxx with xxxx transmitted xxxxx data xxx bits xxx receiver xxxx cannot xxxxxxxx the xxxxx position xx corrupted xxx without xxx additional xxxxxxxxxxx or xxxx frame xxxxxxxxx it xx best xxx the xxxxxxx to xxx ARQ xxxxxxxxx rather xxxx attempting xxxxx correction xxxxxxxx Selective xxxxxx ARQ xxxxxx and xxxxxxxxxxxxxxxxxx Restating xxx Situation xxxxxx sent xxxxxxx with xxxxxxx start xxxx to xxxxxxxx has xxxxxxxx and xxxxxx Missing xx lost xxxxx and xxxx Cumulative xxxxxxxxxxxxxxx ARQ xxxxxx is xxxxxxxx here xxxxxxxxxx acknowledgement xxxxxx refers xx next-in xxxxx sequence xxxxxx Step xxxxxxxxxxx of xxxxxxxxxx ACK xxxxx is xxxxx missing xxx highest xxxxxxxx received xxxxx index xx none xxxxxxxxxx Acknowledgement xx the xxxx expected xx Summary xx the xxxxx network xxxxxxx the xxxxxx usually xxxx of xxxxxxxxx repeat xxx with xxxxxxxxxxx of xxxxxx numbered xxxxxxx from xx The xxxxxxxx here xxx receive xxx frames xxx while xxx remining xxxxxx are xxxxxxxxx Selective xxxxxx ARQ xxxxx in xxxxxxxxxxx the xxxxxxxxxx acknowledgements xxx each xx correctly xxxxxxx frame xxxxxxx the xxxxxxxxxx acknowledgement xxxxxx reflects xxx next-expected xxxxxxxx frames xx the xxxxxxxx has xxx yet xxxxxxxx the xxxxx the xxxxxxxxxx acknowledgement xxxxx is xxxxx It xxxxxxxxx that xxxxx are xx consecutive xxxxxxxx from xxx initial xxxxx of xxx window xxxxx has xxxx fully xxxxxxxx However xxx frames xxxxxxxxx and xxx acknowledged xxxxxxxxxxx As xxx frames xxx value xxx still xxxxxxxxxxx they xx not xxx to xxxxxxx the xxxxxxxx acknowledgement xxxxx Therefore xxx receiver xxxxxx to xxxxxx cumulative xxx of xxx include xxx selective xxxxxxxxxxxxxxxx for xxx frames xx helps xx informing xxx sender xxxx these xxxxxx do xxx require xxx need xxxxxxxxxxxxxx From xxx perspective xx senders xxx next xxxxxxxx sequence xxxxxx is xxxx the xxxxxx need xx retransmit xxx frame xxxxx and xxxx frame xxx next xxx other xxxxxxx frames xxxxx the xxxxxxxxxx acknowledgement xxxxxxxx ReferencesDordal x L xxxxxxxxxxxx to xxxxxxxx Networks x Second xxxxxxx nd xx http xxxxxxxxxxxxx cs xxx edu xxxxxxx html xxxxx html xxxxxxxx under xx Simplilearn xxxx Selective xxxxxx ARQ xxxxxxxxx Video xxxxxxxPaying someone to do your computer assignment has become a practical solution for students managing tight deadlines, academic pressure, and personal responsibilities. Today’s education system demands accuracy, originality, and timely submission, which can be difficult when multiple assignments overlap. Professional academic assistance helps students meet these expectations without unnecessary stress.
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