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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
Explain the working of ISDN Stands for Integrated Services Digital Network. It is a way to move more data over existing regular phone lines. ISDN is rapidly becoming availab
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What is LRC? In LRC, a block of bits is separated into rows and a redundant row of bits is added to the whole block. It can detect burst errors. If two bits in one data unit ar
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Concept Of Permutation Network In permutation interconnection networks the information transfer necessitates data transfer from input set of nodes to output set of nodes and po
a) Assume that the time required to transmit one packet (i.e. the packet length divided by link data rate) is 10ms and the Round Trip Time (from Source to Destination and back) is
graph theory
Define EIGRP?
OSI Reference Model Normal 0 false false false EN-IN X-NONE X-NONE
TYPES OF WIRES: Cable used for wiring would match the following: The intended speed The distance between computers The amount of noise Anticipated future r
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