Complex Spreading Sequence Design
Blekinge Institute of Technology, Department of Telecommunications and Signal Processing2002 (English)Conference paper (Refereed) Published
The performance of code division multiple access system depends on the correlation of the employed spreading code. Low cross-correlation values between spreading sequences are desired to suppress multiple access interference. An auto-correlation function with with a distinct peak enables proper synchronization and suppresses intersymbol interference. However, these requirements contradict each other and a trade-off needs to be established. In this paper, a global two dimensional optimization method is proposed to minimize auto-correlation with cross-correlation being allowed to lie within a fixed region. This approach is applied to design a set of complex valued spreading sequences.
Place, publisher, year, edition, pages
Signal Set Design, Spreading Sequences
Telecommunications Signal Processing
IdentifiersURN: urn:nbn:se:bth-9581Local ID: oai:bth.se:forskinfoC1BA7114BF45917CC1256C6A004BBC9FOAI: oai:DiVA.org:bth-9581DiVA: diva2:837465
SNRV and NUTEK Conference on Radio Sciences and Telecommunications (RVK'02)