Problem with for loop in given algorithm

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charu shree 2023-5-2

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https://ww2.mathworks.cn/matlabcentral/answers/1956544-problem-with-for-loop-in-given-algorithm

评论： VBBV 2023-5-3

Hello all, I am trying to code the following statement using for loop but not getting it clearly.

Queue length at a node in time slot 't+1' = Queue length at a node in time slot 't' + number of packets arrival in time slot 't'.

This is what I had tried:

T = 100; % Total slots
nodes = 8 % Total nodes
ini_q_len = 10; % Queue length at node 1 in time slot 't'
n = 10; % number of packets
p = 0.2; % probability of successful arrival of packets
for t = 1:T % each time slot  
    %% Queue length of each nodes
    for i = 1:nodes
        X(i) = ini_q_len+ binornd(n,p);
    end
end

The problem with this is that I am not getting how to bring in for loop Queue length at a node in time slot 't' i.e., how to include previous slot queue length.

Any help in this regard will be highly appreciated.

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回答（1 个）

VBBV 2023-5-2

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1956544-problem-with-for-loop-in-given-algorithm#answer_1227479

编辑：VBBV 2023-5-2

在 MATLAB Online 中打开

unless Queue length value is not varying, you can initialize it as below and access in 2D matrix to include previous queue length values

T = 100; % Total slots
nodes = 8 % Total nodes
ini_q_len = repmat(10,1,100); % Queue length at node 1 in time slot 't'
K = 4; % some constant
for t = 1:T % each time slot  
    %% Queue length of each nodes
    for i = 1:nodes
        X(i,t) = ini_q_len(t)+ K;
    end    
end