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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
What are the main categories based on which applications of computer network can be categorized? The major areas under which the applications for computer network can be divide
Can you describe screened host architecture?
Q. What is Data Representation? Information Today arrives in different forms such as numbers, text, images, audio and video. Text: Represented like a bit pattern a sequence
write on everything on telecommunication
Q. What do you mean by Addressing? Addressing Require to uniquely and universally identify every device to allow global communication Internet address or IP address is us
The Network Interface Layer The functions of the data link layer and the physical layer of the OSI model have been combined into a single layer called the network in
definition
introduction
Enable Wireless Security Step : Configure Windows to use WEP authentication. Navigate to the Network Connections page again and right-click the Wireless Network Connection
An Internet address (IP address) is a unique 32-bit binary number given to a host and used for all interaction with the host. Each packet transmit across an Internet contains the 3
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