Title :
The design of new optical codes and time-hopping patterns for synchronous spread-spectrum code-division multiple-access communication systems
Author :
Kostic, Z. ; Titlebaum, E.L. ; Maric, S.V.
Author_Institution :
Dept. of Electr. Eng., Rochester Univ., NY, USA
Abstract :
Families of codes that are applicable to optical synchronous spread-spectrum code-division multiple-access (CDMA) communication systems as well as to arbitrary synchronous time-hopping-based spread-spectrum CDMA systems are introduced. The construction of the proposed codes is based on number theoretic results on quadratic congruences, and on a subset of Reed-Solomon codes as used in the Welch-Costas design of frequency-hop patterns. The properties of the proposed codes, in terms of the number of code-families, sizes of code-families and pseudo-orthogonality, are shown to be better than or as good as the properties of existing codes for synchronous CDMA communications.<>
Keywords :
code division multiple access; error correction codes; frequency agility; optical links; spread spectrum communication; synchronisation; Reed-Solomon codes; Welch-Costas design; code-division multiple-access; optical codes; quadratic congruences; spread-spectrum CDMA systems; synchronous CDMA communications; time-hopping patterns; Code division multiplexing; Communication systems; Frequency synchronization; Multiaccess communication; Optical design; Optical fiber communication; Optical receivers; Optical transmitters; Spread spectrum communication; Time division multiplexing;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162431
