New encoding/decoding design of SAC-OCDMA system with fixed correlation zone code

Abstract

Abstract The short code length makes impossible to increases the number of users in the SAC-OCDMA system, this work proposed a new family code with a fixed correlation zone, which makes it possible to construct w different zones for the code, every zone has a fixed correlation value, where the correlation by zone is from 0 to w-1, w is the code weight, i.e., this code is characterized by the incremented cross-correlation value between every two successive zones, The obtained results demonstrate that the proposed code provides better performances compared to other codes.