In this paper, we analyzed the working phenomenon of Single and Multi carrier IDMA in Non Gaussian Impulsive medium and also compared their relative performances. The performance comparison is evaluated under the following constraints; by varying the iteration count, impulsive constant, control parameters and no. of users etc. The multi user detection for these schemes can be realized with complexity (per user) strictly independent of number of users. The simulation result concludes that

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... rrier IDMA outperforms the single carrier IDMA in impulsive non Gaussian channel as a medium.