Spectrum Sharing using Matlab

I want to implement spectrum sharing concept between two network operator.

If you have any code. Please help me for simulating this.

Answer 1

[Naga]

Hello Vartika,

To simulate spectrum sharing between two network operators in MATLAB, you can use a simple model where each operator randomly selects a frequency channel, ensuring no interference by avoiding channel overlap.

% Parameters
numChannels = 10;  % Available channels
numOperators = 2;  % Number of operators
numTimeSlots = 100; % Simulation time slots

% Initialize channel allocation matrix
channelAllocation = zeros(numTimeSlots, numOperators);

% Random seed for reproducibility
rng(0);

% Simulation loop
fo

r t = 1:numTimeSlots
    for op = 1:numOperators
        % Randomly select a channel
        selectedChannel = randi(numChannels);
        
        % Ensure no overlap
        while ismember(selectedChannel, channelAllocation(t, :))
            selectedChannel = randi(numChannels);
        end
        
        % Assign channel
        channelAllocation(t, op) = selectedChannel;
    end
end

% Display and plot results
disp('Channel allocation:');

Channel allocation:

disp(channelAllocation);

     9    10
     2    10
     7     1
     3     6
    10     2
    10     5
     9     2
     5    10
     8    10
     7     1
     9    10
     7     8
     8     4
     7     2
     8     1
     3     1
     1     9
     7     4
    10     1
     5     4
     8     2
     5     7
     8     3
     7     2
     2     5
    10     4
     6     3
     8     3
     6     7
     9    10
     6     2
     2     3
     9     3
     9     3
    10     4
     2     3
     7     5
     4     9
     6    10
     3     8
     8     4
     6     1
     1     6
     8    10
     2     6
     5     1
     4     2
     8     4
     6     2
     7     3
     7     8
     5     1
     3    10
     2     9
     6    10
     1     5
     2    10
     1     8
     9     1
     4     3
     9     5
    10     2
     3     2
     2     9
     6     2
     9     7
     4     6
     5     1
     3     2
     2     3
     5     1
    10     5
     5     4
    10     4
     2     8
     4     3
     5     1
     2    10
    10     6
     1     3
     4     9
     1     2
     7     8
     7     5
     6     3
     8     2
     7     2
     4     7
     8     1
    10     8
     5     4
     6     9
     8     7
     4     9
     6     4
    10     9
     6     7
     6     3
     4     5
     3     9

figure;
hold on;
for op = 1:numOperators
    plot(1:numTimeSlots, channelAllocation(:, op), '-o', 'DisplayName', ['Operator ' num2str(op)]);
end
xlabel('Time Slot');
ylabel('Channel');
title('Spectrum Sharing');
legend show;
grid on;
hold off;

This basic model provides a foundation for exploring more complex spectrum sharing strategies, such as cognitive radio or auction-based methods.

Hope this helps!