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 |
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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