|
Ministry for the development of information technologies and communications of the republic of uzbekistan
|
| bet | 6/7 | | Sana | 16.05.2024 | | Hajmi | 0,57 Mb. | | #238318 |
Bog'liq maruza 3<< 5 >>
CODE:
Here's a basic MATLAB code snippet for simulating a simple Wi-Fi network using IEEE 802.11 standards. This code provides a starting point and can be expanded based on your specific requirements:
% Parameters
numStations = 10; % Number of Wi-Fi stations
numPackets = 100; % Number of packets to transmit
dataRate = 54e6; % Data rate in bits per second (e.g., 54 Mbps for 802.11a/g)
% Initialize variables
txTime = zeros(numStations, numPackets);
rxTime = zeros(numStations, numPackets);
collision = zeros(1, numPackets);
for pkt = 1:numPackets
% Generate random packet size (in bits)
packetSize = randi([100 1500]) * 8; % Random number between 100 and 1500 bytes
% Calculate transmission time
txTime(:, pkt) = packetSize / dataRate;
% Simulate transmission
for station = 1:numStations
% Simulate random backoff time (collision avoidance)
backoffTime = randi([0 63]) * 9e-6; % Random backoff time between 0 and 63 slots (9 microseconds per slot)
% Simulate transmission
if backoffTime == 0
% Successful transmission
rxTime(station, pkt) = txTime(station, pkt);
else
% Collision
collision(pkt) = 1;
end
end
end
% Calculate throughput
totalTxTime = sum(txTime(:));
totalRxTime = sum(rxTime(:));
throughput = (totalRxTime / totalTxTime) * dataRate;
% Display results
disp(['Total packets transmitted: ' num2str(numPackets)]);
disp(['Total packets received: ' num2str(numPackets - sum(collision))]);
disp(['Throughput: ' num2str(throughput / 1e6) ' Mbps']);
This code simulates a simple scenario with 10 Wi-Fi stations, each transmitting a random number of packets. It calculates the throughput of the network, taking into account collisions and random backoff times for collision avoidance. Note that this is a basic example, and real-world Wi-Fi simulations can be much more complex, involving factors such as channel interference, modulation schemes, and more advanced MAC layer protocols.
<< 6 >>
The IEEE 802.11 standard, commonly known as Wi-Fi, has revolutionized the way we connect and communicate wirelessly. With its various iterations and amendments, it has evolved to meet the increasing demands of wireless communication in terms of speed, range, and reliability. Here's a conclusion summarizing the key aspects of Wi-Fi technology:
|
| |
