Large Sets of Orthogonal Sequences Suitable for Applications in CDMA Systems
Large Sets of Orthogonal Sequences Suitable for Applications in CDMA Systems
In this paper, we employ the so-called semi-bent functions to achieve significant improvements over currently known methods, regarding the number of orthogonal sequences per cell that can be assigned to a regular tessellation of hexagonal cells, typical for certain code-division multiple-access systems. Our initial design method generates a large family …