New Correlation Bound and Construction of Quasi-Complementary Sequence Sets
- Resource Type
- Periodical
- Authors
- Sarkar, P.; Li, C.; Majhi, S.; Liu, Z.
- Source
- IEEE Transactions on Information Theory IEEE Trans. Inform. Theory Information Theory, IEEE Transactions on. 70(3):2201-2223 Mar, 2024
- Subject
- Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Correlation
Codes
Multicarrier code division multiple access
Interference
Systematics
Zero correlation zone
Informatics
Multi-carrier code-division multiple-access (MC-CDMA)
aperiodic correlation
complete complementary code (CCC)
quasi-complementary sequence set (QCSS)
multivariate function
- Language
- ISSN
- 0018-9448
1557-9654
Quasi-complementary sequence sets (QCSSs) have attracted sustained research interests for simultaneously supporting more active users in multi-carrier code-division multiple-access (MC-CDMA) systems compared to complete complementary codes (CCCs). In this paper, we investigate a novel class of QCSSs composed of multiple CCCs. We derive a new aperiodic correlation lower bound for this type of QCSSs, which is tighter than the existing bounds for QCSSs. We then present a systematic construction of such QCSSs with a flexible alphabet size and a low maximum correlation magnitude, and also show that the constructed aperiodic QCSSs can meet the newly derived bound asymptotically.