undefined function or variable bits---UMFC vs ODFM

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肯尼·阿德 on 4 May 2020

Commented: 肯尼·阿德2020年5月7日

Accepted Answer: Samatha Aleti

彭李，嗨，

please see the code in the link , , , //www.tatmou.com/help/comm/examples/ufmc-vs-ofdm-modulation.html

ERROR IN UMFC ?((LINE 37)

InpData(:symIdx) = randi({0 1}, 10*bits, 1);

Code not running!!!

please assist

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Walter Roberson 2020年5月7日

The first parameter to randi should be a numeric scalar, or else a numeric vector with two elements. So randi({0 1}, 10*bits, 1) is wrong because you are passing in a cell instead of a numeric vector, but randi([0 1], 10*bits, 1) might work to assign to inpData(:,symIdx)

Accepted Answer

Samatha Aleti 2020年5月7日

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//www.tatmou.com/matlabcentral/answers/522780-undefined-function-or-variable-bits-umfc-vs-odfm#answer_430877

Hi,

I do not see the line of code you mentioned in the above link , but I assume you are pointing to the following line of code:

inpData(:,bandIdx) = bitsIn;% log bits for comparison

Here “ 比尔特 ” is defined as a vector of bits ( randomly generated) whose size depends upon number of bites per carrier “ bitsPerSubCarrier “ 和 ” subbandSize ” , as follows:

                             subbandSize = 20;% must be > 1
                            
                             bitsPerSubCarrier = 4;% 2: 4QAM, 4: 16QAM, 6: 64QAM, 8: 256QAM
                            
                             bitsIn =兰迪([0,1],bitsPerSubCarrier * subbandSize, 1);

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肯尼·阿德 2020年5月7日

Thanks Samatha Aleti. You are the best! Works fine!

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