index exceed matrix dimensions

for k = 1 : nodes
        schedule(k , 1) = x(k); 
          c = 1;
        while((schedule(k , 1 + c) < schedule(k , c)) || (schedule(k , 1 + c) - schedule(k , c) < transmission)) %%%<<<index exceed matrix dimensions .

              schedule(k , 1 + c) = schedule(k , c) + transmission; %Delay the next packet, update the schedule.
              c = c + 1;
          end
      end

Answer 1

[Walter Roberson]

What happens if you get to the right hand side but the conditions are still true?

We are not given any information about what transmission is.

If transmission is negative then

schedule(k , 1 + c) = schedule(k , c) + transmission

will continue to be < schedule(k , c)

If transmission is non-integer then you run the risk that after

schedule(k , 1 + c) = schedule(k , c) + transmission

then on the next round with increased c, that

schedule(k , 1 + c) - schedule(k , c) < transmission

is true. Algebraically it should not be -- algebraically it should equal transmission rather being less than transmission, but because of floating point round-off it can be less.

[Hassan Al-Khateeb]

Thank you very much Mr.Walter Roberson , but, the same error message still appears every time and this error appear only if i exceed the generation_freq to more than 59((in the general file))

Index exceeds matrix dimensions.

Error in csma_phase (line 114)
while (schedule(k , 1 + c) - schedule(k , c) < transmission)

Error in proposed_mac (line 61)
        [delay , energy , ~ , packets_received , cluster_end] = csma_phase(traffic((1 + c1 + c2):(phase_node(pc) + c1 + c2) , :) , Tx_node((1 + c1 +
        c3):(phase_node(pc) + c1 + c3)) , frame_duration , phase_duration , phase_duration * (pc-1) , pc , phase);

Error in main (line 102)
            [delay1 , energy1 , throughput1 , ~ , bl_CH , bl_cm] = proposed_mac(traffic , Tx_nc , Tx_CH , Tx_node , clusters);

Yours,

[Walter Roberson]

The code your provided in general.m is missing end statements and possibly other statements as well.

Answer 2

[Hassan Al-Khateeb]

Dear Mr. Roberson,

Yes, I agree with you ..... the attached file above is the complete code .... Thanks

[Walter Roberson]

Undefined function or variable 'clustering'.
Error in general (line 92)
        [CH_I , Tx_CH , Tx_node , CM_I , clusters] = clustering(nodes_location , Tx , threshold);

Answer 3

[Hassan Al-Khateeb]

Yours Truly,

[Walter Roberson]

Undefined function or variable 'proposed_mac'.
Error in general (line 102)
            [delay1 , energy1 , throughput1 , ~ , bl_CH , bl_cm] = proposed_mac(traffic , Tx_nc , Tx_CH , Tx_node , clusters);

Answer 4

[Hassan Al-Khateeb]

Greetings,

The attached file is the proposed mac.

Thanks

[Walter Roberson]

Line 215 of csma_phase.m contains

else .

which is invalid. You need to remove the "."

Your code in proposed_mac.m defines 6 output arguments

delay_c , energy_c , throughput_c, packets_received_c , bl_CH , bl_cm

but it does not assign to any of them and does not even mention any of them other than in the function line.

[Walter Roberson]

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