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In OSI 7 layer model, a header, or possibly a trailer, can be added to the data unit at each layerI 7 layer, but we will define a simple virtual packet which contains only 8bit data value without any header and trailer
Each packet contains one pixel information of the lenna256 image. We defined the 3 structures in "CPacketStruct.h" to express a packet as bit stream. Left structure is defined for bit stream for error detection code and right structure is defined for bit stream for error correction code. There is additional bit stream without any code, and the data structure of bit stream with no code is same as the Packet structure in "CPacketStruct.h"
typedef struct {
BIT dat1[5];
BIT dat2[5];
} EDBitStream;
BIT dat1[7];
BIT dat2[7];
} ECBitStream;
Fig. Bit stream structure
One pixel data is represented with 8 digits, and each 4 digits are divided into dat1, and dat2. In bit streams for error detection
Ex) 1 Pixel data = 100010012
Normal Packet
(Packet is not encoded)
Encoded Packet by Parity Bit
Encoded Packet by hamming code
[1000 1001]
[Pixel Data ]
[10001 10010 ]
[ (1000)+Parity || (1001) +Parity ]
[1101000 0111001 ]
[ (1000)* G || (1001) * G ]
In Packet structure,
NCBitStream
In EDBitStream Structure
In ECBitStream Structure
Q. Show the Error Correction by Hamming Code? Hamming Code is able to be applied to data units of any length and uses the relationship between data and redundancy bits For i
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
wan notes
In order to limit the quantity of numbers that a system administrator has to enter, Cisco can use which abbreviation to show 0.0.0.0? Ans) Cisco uses host to state 0.0.0.0. Thi
Q. Show the Parity Check - Performance? Parity Check - Performance Is able to detect all single-bit errors Can as well detect burst errors if the total number of
distortion
Normal 0 false false false EN-IN X-NONE X-NONE Networks classification
XYZ INC. is a large manufacturing firm that operates 5 factories in Dallas, 4 factories in Los Angeles, and 5 factories in Albany, New York. It operates a tightly connected order m
DNS spoofing This process is generally refers to the process of responding a DNS request that was supposed to implement for another server. This can be in the case where the s
Can you determine routing loop issue in RIP protocol?
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