At the present time, an alternative multiple access schemebaptizedinterleave-division multiple access (IDMA) has enticed greatly devotion, in which interleavers are recycled as the only means for user parting. It has been displayed that the IDMAcan accomplish near single user presentation in multiuse surroundings with very truncated receiver complexity. In this broadsheet We equate the presentation of interleave division multiple-access (IDMA) technique which deeds the interleaving as resources of user parting instead of by different marks as in a conventional code-division multiple-access (CDMA) pattern and coded IDMA arrangement where we use dissimilar codes to diminish bit error rate(BER). This technique take over many compensations from CDMA, such as diversity against fading and mitigation of the wickedest-case user interference problem. This paper offeringsangeneral idea of IDMA and deliberates the main features and regions of application.