Expanding the Capabilities of Data Transmission Technology to Improve the Efficiency of Multi-Channel Communication Systems

  • 1 Technical University of Moldova, Chisinau, Republic of Moldova


The article, been a continuation of previous studies, proposes and analyzes one of the ways to increase the efficiency of multichannel communication systems through the simultaneous use of several derivative systems of Walsh functions with different generating functions, which are necessary for constructing pseudo-random sequences (PSR). These sequences, in turn, are used as spreading codes when generating noise-like signals in multi-channel data transmission systems with channel separation (SDMA) according to the signal shape or code. The correlation properties of the PSR are studied and it is shown that, in the contrast of the known ones, the proposed approach makes it possible to increase the number of channels in the system without increasing the channel bandwidth that improves the efficiency of a multi-channel communication system.



  1. Варакин Л.Е. Системы связи с шумоподобными сигналами. - Mосква: Радио и связь, 1985 – 384 с.
  2. Мазурков М.И. Системы широкополосной радиосвязи. – Oдесса: Наука и техника, 2009.—344 с.
  3. Solomon, W. Golomb and Guang, Gong. Signal Design for Good Correlation, Cambridge, Cambridge University Press, 2005. - 458 p.
  4. Feher K. Wireless Digital Communications: Modulation and Spread Spectrum Applications, 1995. – 524 p.
  5. Gantmakher V.E., Bystrov N.E., Chebotarev D.V. Noise-like signals. Analysis, synthesis and processing — St. Petersburg: Science and Technology, 2005.
  6. Ипатов В. Широкополосные системы и кодовое разделение сигналов. Принципы и приложения. M.: Tехносфера. 2007. - 488 с.
  7. Бессарабова А.А., Венедиктов М.Д., Ледовских В.И. Разделение каналов по форме в широкополосных системах передачи информации.. Воронеж: Воронеж. гос. техн. ун-т, 2007.- 144 с.
  8. Никитин Г.И. Применение функций Уолша в сотовых системах связи с кодовым разделением каналов – СПб: СПбГУАП, 2003.- 86 p.
  9. Беспалов М.С., Скляренко В.А. Функции Уолша и их приложения. – Владимир: Изд-во Владим. гос. ун-та, 2012. - 35 p.
  10. Sorochin, Gherman, Șestacova, Tatiana Comparative analysis of composite Barker codes and composite Walsh functions. - Innsbruck, Austria//Österreichisches Multiscience Journal №38/2021, p. 72-78.
  11. Senin A.I. Correlation properties of sequences based on M-sequences and Walsh sequences. - M.: Vestnik of Bauman Moscow State Technical University. Instrumentation Series № 5, 2014, pp.88-97.
  12. Khachatryan L. G. Methods of construction of de Bruijn sequences // Discrete Mathematics, 1992. Т. 3. № 4, c. 62-78.

Article full text

Download PDF