Abstract
Based on a ternary perfect sequence and a binary orthogonal matrix, the Z-periodic complementary sequence (ZPCS) sets over the 8-QAM+ constellation are constructed. The resultant sequences can be used in multi-carriers code division multiple access (MC-CDMA) systems to remove interference and increase the transmission rate. The proposed construction provides flexible choice for parameters so as to meet different requirements in the application. A construction of shift sequence sets is proposed and the number of 8-QAM ZPCS sets is extended by changing the parameters of shift sequences. As a result, more users can be accommodated in the system.
| Original language | English |
|---|---|
| Pages (from-to) | 1635-1638 |
| Number of pages | 4 |
| Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| Volume | E99A |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2016 |
| Externally published | Yes |
Keywords
- 8-QAM+ constellation
- Complementary sequence
- Zero correlation zone