Construction of Z-Periodic Complementary Sequence Sets over the 8-QAM+ Constellation

• DOI: 10.1587/transfun.e99.a.1635
• Publication Date: 2016-07-31T22:12:20Z
• Authors: Xiaoyu CHEN; Deming KONG; Chengqian XU; Kai LIU
• Keywords: QAM; Sequence (biology); Complementary sequences; Pseudorandom binary sequence

Based on a ternary perfect sequence and binary orthogonal matrix, the Z-periodic complementary (ZPCS) sets over 8-QAM+ constellation are constructed. The resultant sequences can be used in multi-carriers code division multiple access (MC-CDMA) systems to remove interference increase transmission rate. proposed construction provides flexible choice for parameters so as meet different requirements application. A of shift is number 8-QAM ZPCS extended by changing sequences. As result, more users accommodated system.