Parameters of the Сarrier Sense Multiple Access Protocol with Conflicts Resolving at the Physical Layer

Authors

  • V. F. Yerokhin National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" https://orcid.org/0000-0001-7194-8577
  • A. S. Poliakova National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
  • R. Yu. Sboiev National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
  • V. D. Hol National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" https://orcid.org/0000-0002-9995-9590

DOI:

https://doi.org/10.20535/RADAP.2019.79.55-59

Keywords:

CSMA – CD, conflicts resolvconflicts resolving on the physical layer, multiuser detection theory, queuing system, source of recurring calls

Abstract

At present, the global growth of communication needs makes us more efficient in using of the frequency spectrum. The development of communication systems requires an increase of throughputs, but the frequency spectrum is limited, which will not allow to increase the channel width or the number of channels. Assuming that at one frequency there is an opportunity to transmit several mutual interference signals at one time, the problem of the separation of these signals arises. But, complexity of demodulation procedures has significantly increased compared to the classical. It is necessary, therefore, to determine whether this complexity increasing will be justified. To answer this question, it is necessary to find out how the throughput of the random multiple access system increases, where the frequency resource multiple reusing is possible. For research was chosen the carrier sense multiple access protocol, which have become widespread in packet networks for their successful combination of relative simplicity of access algorithms and fairly high efficiency. The purpose of the research is to determine the main characteristics of the various carrier sense multiple access protocols with collision detection and with additional assumption about conflicts resolving at the physical layer. The parameters of the carrier sense multiple access protocols with collision detection and with additional assumption about conflicts resolving at the physical layer are obtained. It is shown that in comparison with the classical protocol, the assumption about paired conflicts resolving at the physical layer gives the significant increasing of the throughput in the communication systems with such access protocols. The comparison results are given. The obtained results allow to confirm the expediency of implementation in demodulators of the perspective receiving devices algorithms of conflicts resolving at the physical layer as being characterized by relatively small complexity.

Author Biographies

V. F. Yerokhin, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Yerokhin Viktor, Dr. of Sci (Techn), Prof.

V. D. Hol, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"

Hol V. D., Cand. of Sci. (Tech), Assoc. Prof.

References

Verdu S. (1998) Multiuser Detection, Cambridge University Press, 474 p.

Lupas R. and Verdu S. (1989) Linear multiuser detectors for synchronous code-division multiple-access channels. IEEE Transactions on Information Theory, Vol. 35, Iss. 1, pp. 123-136. DOI: 10.1109/18.42183

Ageev D.V. (1935) Osnovyi teorii lineynoy selektsii, Nauchno-tehnicheskiy sbornik, Iss. 10, pp. 8-28.

Borisov Yu. and Penin P. (1967) Osnovyi mnogokanalnoy peredachi informatsii, Moskva, Svyaz, 435 s.

Burachenko D. (1990) Optimalnoe razdelenie tsifrovyih signalov mnogihpolzovateley v liniyah i setyah svyazi v usloviyah pomeh. Leningrad: VAS, 302 p.

Bobrovskiy V. (2007) Mnogopolzovatelskoe detektirovanie. Ulyanovsk: Vektor-S, 348 s.

Yerokhin V. F. and Peleshok Y. V. (2016) Mathematical model сoherent demodulation of synchronous mutually nonorthogonal digital signals with minimum frequency-shift keying, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, Iss. 64, pp. 41-50. doi: 10.20535/RADAP.2016.64.41-50.

Klyuev V.F. (2015) Issledovanie optimal'nykh kogerentnykh demodulyatorov AM i ChM signalov [The study of optimal coherent demodulators AM and FM signals], Nizhniy Novgorod, 20 p.

Gerasimenko E. S. (2017) Algorithm for digital coherent demodulation of phase-shift keyed signals and its characteristics, Vestnik of Voronezh Institute of the Ministry of Internal Affairs of the Russian Federation, no. 1, pp. 137-143.

Glushkov A.N. and Gerasimenko E.S. (2017) Algorithm of digital coherent demodulation of binary signals with differential phase keying and its interference immunity

Vestnik Voronezhskogo gosudarstvennogo tekhnicheskogo universiteta, No. 5, pp. 70-74.

Sboyev R.Yu., Polyakova A.S. and Yerokhin V.F. (2018) Asymptotic analysis of the random multiple access protocol ``Nonpersistent CSMA-CD'' with pairwise conflicts resolving at the physical layer, Problemy teplekomunikatsii, 3p.

Nazarov A.A. (1991) Asimptoticheskiy analiz markoviziruemyih sistem, Tomsk, TGU, 158 p.

Downloads

Published

2019-12-30

How to Cite

Yerokhin, V. F., Poliakova, A. S., Sboiev , R. Y. and Hol, V. D. (2019) “Parameters of the Сarrier Sense Multiple Access Protocol with Conflicts Resolving at the Physical Layer”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (79), pp. 55-59. doi: 10.20535/RADAP.2019.79.55-59.

Issue

Section

Telecommunication, navigation, radar systems, radiooptics and electroacoustics

Most read articles by the same author(s)