Filkin K. Development of methods of comparative analysis and estimation of signal generation algorithms for CDMA radio systems

An object of researches is devices of forming of signals for communication networks from CDMA. The article of research is indexes and high-quality descriptions of functioning of devices of forming of pseudo random sequences (PRS) in mobile systems. In this work tasks on settling the requirements for signals used for the transmission of discrete messages in CDMA radio systems were accomplished. Analysis of methods of generation of optimal signals built on the basis of PRS for the CDMA radio systems was conducted. Comparative analysis and estimation of algorithms for PRS was made; principles of sensor quality estimation and their comparative analysis were specified. The number of existing algorithms and PRS generation devices were modified and a new ones were developed for code division multiplexing communication systems. As a result of research it was found the regularities of cross-correlation spectra of the pair of sequences with super-high peaks of cross correlations which allow to select sequences for communication networks with CDMA among the whole class of sequences thus multiplying the number of sequences with acceptable cross-correlation features. New families of m-similar sequences of high linear complexity were constructed and may be applied in broadband systems with friquency hopping multiple access. An application domain is the systems of telecommunications.