Thank you for taking the time to look into it. Would you perhaps still happen to have the file where in you have fixed the bandwidth issue? I will check out the project with the MD codes as you have suggested. As for the reference paper on MQC, i have the main paper i have referred, to learn the construction of the code. The link for the paper is http://115.248.50.245:7777/jlf/search/generalredirect?rurl=http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=948274&queryText%3Dmodified+quadratic+congruence