New bounds on the total squared correlation and optimum design of DS-CDMA binary signature sets.

New bounds on the total squared correlation and optimum design of DS-CDMA binary signature sets.

The Welch lower bound (see Welch, R.L., IEEE Trans. Inform. Theory, vol.IT-20, p.397-9, 1974) on the total squared correlation (TSC) of signature sets is known to be tight for real-valued signatures and loose for binary signatures whose number is not a multiple of four. We derive new bounds on the T...

Täydet tiedot

Bibliografiset tiedot
Julkaisussa:IEEE Transactions on communications 51, 1 (2003).
Päätekijä: Karystinos, G.N
Aineistotyyppi: Artikkeli
Kieli:English
Aiheet:
DS-CDMA.
Hadamard matrices.
Welch lower bound.
Binary sequences.
Binary signature sets.
Communication channel.
Direct-sequence code-division-multiple-access.
Signal design.
Spreading codes.
Total squared correlation.