Analysis of Optimum Interleaver for Code Domain NOMA System

Abstract

In recently proposed multiple access techniques like IDMA , users are differentiatedusing user specific interleavers, unlike CDMA where user separation is achieved by user specific signature sequence. User specific Interleaver offer minimum probability of collision among themselves along with other meits like less bandwidth, memory requirement and low cost. In digital communication, interleavers plays a vital role in establishing reliable communication without reducing its bandwidth. It fulfill Shannon’s capacity rule by rearranging the word length of information bits. In this paper we compared different interleavers based on memory requirement, complexity, bit error rate, and bandwidth requirement. Simulation result and data analysis demonstrate optimum performance of tree based interleaver and prime interleaver in comparison to random, power, helical and block interleavrer.