Generation and Correlation Characteristics of Complex Spreading Sequences for CDMA Wireless Communication

This paper presents complex spreading sequences (CSS) for use in coded multiple access communication systems. The complex sequences such as Zadoff-Chu (ZC) and Oppermann & Vucetic (OV) are described here. These complex spreading sequences offers a very wide range of values for both auto-correlation (AC) and cross-correlation (CC) functions, allowing great flexibility in the selection of characteristics of sequence sets. The parameters such as mean-square aperiodic AC and CC values for various sequence sets are presented here.