Radiotekhnika
Publishing house Radiotekhnika

"Publishing house Radiotekhnika":
scientific and technical literature.
Books and journals of publishing houses: IPRZHR, RS-PRESS, SCIENCE-PRESS


Тел.: +7 (495) 625-9241

 

Bicriterial signal power optimization in synchronous systems of data exchange with codе division multiple access

Keywords:

V.S. Maryukhnenko – Dr.Sc. (Eng.), Professor, Military Academy of the Strategic Missile Forces named after Peter the Great (Serpukhov branch)
E-mail: viktor.maryuhnenko@yandex.ru
V.V. Erokhin – Ph.D. (Eng.), Associate Professor, Irkutsk Branch of the Moscow State Technical University of Civil Aviation
E-mail: ww_erohin@mail.ru


Based on the analysis of problems caused by the «near–far» effect that arise in communication systems and data exchange with multiple access, a bicriterial problem of signal power control of a base station of a code division system is formulated. The conditions for simultaneous minimization of two particular optimality criteria are considered: the deviation of the transmitter power from the desired value and the minimum dispersion of the pseudorange measurement error between the objects of the system.
Synthesized, based on the methods of statistical dynamic programming Bellman-Stratonovich, the algorithm of stochastic bicriteria optimization based on the evaluation of state variables.
The structural synthesis of an optimal multidimensional power control system with estimation of the signal delay time taking into account the influence of random perturbations is performed.
The ways of solving the problem of bicriteria optimization – the information of the vector index to a predeter-mined sequence of one-criterion problems and to the scalar objective function are considered. As a measuring system, it is proposed to implement a tracking system behind the delay of the envelope of the signal with an optimal second-order filter.
Simulated statistical models of the power optimization algorithm have been developed and investigated. A comparative analysis of the results of simulation is performed. It is shown that by optimizing the radiated power, leveling of the signals coming from different remote subscribers is possible. The developed algorithm allows to find a compromise solution of the problem of bicriterial optimization of signal power in synchronous systems of data exchange with code division of channels.

References:
  1. Lijun Qian, Zoran Gajic Joint Optimization of Mobile's Transmission Power and SIR Error in CDMA Systems. Department of Electrical and Computer Engineering Rutgers The State University of New Jersey 94 Brett Road, Piscataway. NJ 08854–8058.
  2. Sakalema D.Zh. Optimizacija upravlenija moshhnost'ju izluchenija mobil'noj stancii v sotovyh setjah s kodovym razdeleniem kanalov // Jelektromagnitnye volny i jelektronnye sistemy. 2011. T. 16. № 11. S. 48–52.
  3. Chamberland J.F., Veeravall V.V. Decentralized dynamic power control for cellular CDMA systems // IEEE Transactions on Wireless Communications. May 2003. V. 2 (3). P. 549–559.
  4. Chen B.-S., Lee B.-K., Chen S. Adaptive power control of cellular CDMA systems via the optimal predictive model // IEEE Transactions on Wireless Communications. July 2005. V. 4 (4). P. 1914–1927.
  5. Fei Qin, Xuewu Dai, John E. Mitchell Effective-SNR estimation for wireless sensor network using Kalman filter. Ad Hoc Networks. May 2013. V. 11. № 3. P. 944–958.
  6. Erohin V.V. Upravlenie moshhnost'ju v sinhronnyh sistemah s kodovym razdeleniem kanalov na osnove ocenki vremeni zaderzhki signala // Doklady Tomskogo gosudarstvennogo universiteta sistem upravlenija i radiojelektroniki. 2016. T. 19. № 2 (40). S. 31–34.
  7. Stratonovich R.L. Uslovnye markovskie processy i ih primenenie k teorii optimal'nogo upravlenija. M.: MGU. 1966.
  8. Karlin S. Matematicheskie metody v teorii igr, programmirovanii i jekonomike. M.: Mir. 1964.
  9. Shtojer R. Mnogokriterial'naja optimizacija. Teorija, vychislenija i prilozhenija. M.: Radio i svjaz'. 1992.
  10. Jarlykov M.S., Bogachev A.S., Merkulov V.I., Drogalin V.V. Radiojelektronnye kompleksy navigacii, pricelivanija i upravlenija vooruzheniem letatel'nyh apparatov. T.1. Teoreticheskie osnovy / Pod red. M.S. Jarlykova. M.: Radiotehnika. 2012.
  11. GLONASS. Principy postroenija i funkcionirovanija / Pod red. A.I. Perova, V.N. Harisova. Izd. 4-e, pererab. i dop. M.: Radiotehnika. 2010.
  12. Gavrilov V.M. Optimal'nye processy v konfliktnyh situacijah. M: Sov. radio. 1969.
  13. Harisov V.N. Anikin A.L. Sintez algoritmov optimal'nogo upravlenija vyborom istochnikov izluchenija // Radiotehnika. 1996. № 7. S. 67–74.
  14. Makarov I.M., Vinogradskaja T.M., Rubchinskij A.A., Sokolov V.B. Teorija vybora i prinjatija reshenij. M.: Nauka. 1982.
  15. Kalashnikov K.S., Shahtarin B.I. Adaptivnyj fil'tr Kalmana dlja ocenki parametrov kanala pri prieme OFDM-signalov // Radiotehnika i jelektronika. 2014. T. 59. № 4. S. 331–338.
  16. TIA/EIA Interim Standard-95B: Mobile station-base station compatibility standard for dual-mode wideband spread spectrum cellular system. TIA. 1998.

© Издательство «РАДИОТЕХНИКА», 2004-2017            Тел.: (495) 625-9241                   Designed by [SWAP]Studio