A Joint Design of Complex Signatures Sets for Multicellular Synchronous CDMA Network

  • Paul Cotae

Abstract

A design using total squared correlation (TSC) measure for the overloaded complex spreading sequence sets on the uplink of multicellular synchronous CDMA systems is introduced. For equal power users, the design provides orthogonal Welch Bound Equality (WBE) complex spreading sequences with constant chip magnitude. We developed an algorithm, which allows obtaining a structured Gram matrix having a particular pattern for cross correlations of the multicellular signature sequence sets without alphabet constraints. By using the proposed algorithm spreading sequences with maximum equicorrelated amplitude are also obtained. The mathematical formalism is supported with selected numerical examples in the multicellular S-CDMA context.
Published
18-06-2015
How to Cite
Cotae, P. (2015). A Joint Design of Complex Signatures Sets for Multicellular Synchronous CDMA Network. Journal of Communication and Information Systems, 21(3). https://doi.org/10.14209/jcis.2006.12
Section
Regular Papers