Items of № 2, 2017

The Electrosvyaz Magazine is one of the leading science & technical magazines in Russia.

INTERNET OF THINGS: INTERNATIONAL STANDARDIZATION

V.O. Tikhvinskiy, LLC “IcomInvest”, deputy general director on innovation technologies, professor of MTUCI, Dr.Sci. (Econ.); vtniir@mail.ru
V.A. Koval, JSC “Geyser-Telecom”, general director; koval@geyser-telecom.ru
G.S. Bochechka, LLC “IcomInvest”, head of innovation centre department, assistant professor of MTUCI, Ph.D.; g.bochechka@gmail.com

The article provides an overview of the standardization activities of the leading international communications standards bodies (ITU, Partner projects oneM2M and 3GPP) in the field of IoT in the last five years. The phasing of the development for IoT Technical specifications and standards, their division into the respective releases has shown. A comparative analysis of the standards for new technologies narrowband (NB-IoT, LTE-M, EC-GSM), proposed for 3GPP mobile access networks, are provided here. Review of the current activities of the leading regional international organization for Telecommunication Standardization ETSI has made and plans on the creating of Technical Committee on standardization in the field of IoT in the Russia were considered.
Keywords: standardization, open standard, internet of things (IoT), M2M, ITU, oneM2M, 3GPP, ETSI.


MULTILEVEL CLOUD ARCHITECTURE FOR TACTILE INTERNET APPLICATIONS

A.A. Ateya, The Bonch-Bruevich Saint-Petersburg State University of Telecommunications (SPbSUT), department of communication networks and data transmission, postgraduate; eng.abdelhamied@hotmail.com
A.I. Vybornova, The Bonch-Bruevich SPbSUT, department of communication networks and data transmission, assistant professor, Ph.D.; a.vybornova@gmail.com
A.Eu. Koucheryavy, The Bonch-Bruevich SPbSUT, head of department of the communication networks and data transmission department, professor, Dr.Sci.(Tech.); akouch@mail.ru

This paper introduces an approach to the multi-level cloud based cellular system architecture, that allows to reduce the round trip latency for the large amount of connections in the network.
Keywords: tactile internet, 5G, cloud computing, Mobile-Edge Computing.


THE IoT DEVICES IDENTIFICATION PROCEDURE BASED ON FORCED DEGRADING OF FLASH-MEMORY SECTOR

S.S. Vladimirov, The Bonch-Bruevich SPbSUT, department of communication networks and data transmission, associate professor, Ph.D.; vladimirov.opds@gmail.com
R.V. Kirichek, The Bonch-Bruevich SPbSUT, department of communication networks and data transmission, associate professor, Ph.D.; kirichek@sut.ru

The paper presents the latest results of authors’ scientific studies referred to large-scale research of the network and IoT device identification methods. There has been considered the general concepts of hardware identification based on forced degrading of flash-memory sector. The results of experimental studies lead to formulating of several properties of degraded flash-memory chip and make possible to propose the method and application scenario of hardware identification based on forced flash-memory sector degrading.
Keywords: identification, security, flash-memory.


DEVELOPMENT OF AUGMENTED REALITY SERVICES WITHIN TACTILE INTERNET CONCEPT

M.A. Makolkina, The Bonch-Bruevich SPbSUT, department of communication networks and data transmission, assistant professor, Ph.D.; makolkina@list.ru

The emergence of new services, called augmented reality services greatly expand the possibilities of the everyday user life in real world, but also require a new approach to their provision and quality of experience. In the paper investigated applications of augmented reality and their relationship with the concept of tactile internet. The features of augmented reality services determined. A model of services for new applications and interaction model for core network elements presented. Enhanced quality parameters of experience with the new requirements for the transmission of tactile sensations.
Keywords: augmented reality, tactile internet, service model, interconnection model, D2D communication.


OPTIMIZATION OF OFDM SIGNALS ENSEMBLE IN MOBILE COMMUNICATION NETWORKS

R.S. Averianov, LLC “NXTT”, director of productive activity; ars@nxtt.org
A.O. Shorin, LLC “NXTT”, technical director; as@nxtt.org

The influence of the velocity of subscribers on the performance of cellular networks LTE and McWILL was analyzed. The speeds, to which LTE and McWILL configured in the best way, were found. It is shown that these speeds will vary depending on the frequency range. It is established that in cases with subscriber’s speeds over 35 m/s, in the 2600 MHz band, the performance of the LTE network can drop by 22%. Network McWILL has a higher stability, since it uses the basic ranges 340, 420 and 1800 MHz, in which the subscribers mobility has a less noticeable influence.
Keywords: LTE, McWILL System, OFDM, Doppler effect, size of the OFDM ensemble.


SPECIFCITY OF McWILL NETWORK PLANNING IN CONSIDERATION ELECTROMAGNETIC COMPATIBILITY WITH LTE NETWORKS IN ADJACENT FREQUENCY BANDS

О.A. Shorin, LLC “NXTT”, general director, professor, Dr.Sci. (Tech.); oshorin@gmail.com
G.O. Bokk, LLC “NXTT”, science director, Dr.Sci. (Tech.); bokkg@yandex.ru

Observed severe consequences for broadband trunking communication from the use of spectrum allocation methods, constructed only on the basis of a frequency selection. The article describes the technology of frequency-territorial-angular diversity to ensure EMC between the networks McWILL-1800 and LTE-1800. In article proposed the method for assessing the growth of design complexity when demands to provide EMS. For network McWILL-1800 it showed that the complexity will increase by no more than 1,5 times.
Keywords: mobile communication network, propagation model, electromagnetic compatibility (EMC), 1800 MHz band, LTE, McWILL System.


A STUDY OF PROBLEMS OF PROVIDING EMC OF RADIOELECTRONIC FACILITIES OF McWILL AND LTE STANDARDS IN 1800 MHz BAND AND THEIR SOLUTIONS

V.G. Kalugin, JSC «NRTB», first deputy general director-chief engineer, Ph.D., kalugin@nrtb.ru
S.V. Suhatskiy, JSC «NRTB», deputy head of experimental research department; suhatskiy@nrtb.ru

Examines the level of out-of-band and spurious emissions for the transmitters of a standard base stations (BS) of the networks LTE and McWILL. For the measuring stand we developed an improved measurement method which provides precision up to the levels of –95 dBc. It has been shown, that the standard equipment of BS LTE and McWILL provides the level of out-of-band and spurious radiation from 3 to 7 dB lower than level setting in the 3GPP recommendations.
Keywords: LTE, McWILL System, out-of-band emission, spurious emission, EMC, measuring stand.


COMPARISON OF LTE AND McWILL NETWORKS EFFICIENCY IN THE CASE OF SPEECH AND SHORT MESSAGES TRANSMISSION

R.S. Averianov, LLC “NXTT”, director of productive activity; ars@nxtt.org
A.O. Shorin, LLC “NXTT”, technical director; as@nxtt.org

A comparative analysis of the capacity of LTE networks and McWILL for the speech transmission and short messages exchange was performed. Found that the VoIP techniques, which uses in the LTE, resulting in substantial losses. The McWILL networks for voice exchange is used a specialized Protocol. Because of this network McWILL superior to networks LTE in 1,7–3,4 times (in terms of the number of voice channels per unit bandwidth), depending on working conditions.
Keywords: VoIP, LTE, McWILL System, package, frame format, procedure ROHC, PDCP Protocol.


THE IMPACT OF SIZE OF OFDM-SIGNAL RESOURCE BLOCK ON LTE AND McWILL NETWORKS PERFORMANCE

O.A. Shorin, LCC “NXTT”, general director, professor, Dr.Sci.(Tech.); oshorin@gmail.com
G.O. Bokk, LCC “NXTT”, director of science, Dr.Sci.(Tech.); bokkg@yandex.ru

The analysis of the impact of size of resource block (RB) of the OFDM signal on the performance of 4G networks was performed. For the digital exchange was proposed the method and the performance indicator, which allows to consider the effect of the RB size on the data transmission speed and the probability of congestion (GoS). Established that the size of discrete portion of the resource 2RB, which is used for resource allocation in LTE, is too great. This can lead to the loss of the radio channel performance and to the growth of the GoS. In McWILL the size of discrete portion of the resource is set with accuracy up to 1/8RB. It is shown that in this case the loss of performance no occurs.
Keywords: OFDM, resource block, McWILL system, LTE, GoS, markov process.


THE IMPLEMENTATION METHOD OF ABSOLUTE PSK AT 180°

A.A.Volkov, Moscow State University of Railway Engineering (MIIT), professor, Dr.Sci.(Tech.); aavolkov2009@rambler.ru
M.S. Morozov, MIIT, postgraduate student; raconteurs.mm@gmail.com

The absolute phase shift keying (PSK) to 180° while providing the best possible radio interference immunity, but in practice is not used due to the reverse operation of the coherent detector (CD) of its signals. The paper shows that this inverse operation CD is not removable, in principle, if the reference oscillation for CD is formed by the input signal with absolute PSK at 180°. This article provides a method to eliminate in principle the reverse operation CD such a signal, the novelty of which is confirmed by patents for invention and utility model.
Keywords: signal, the absolute phase shift keying to 180°, the reference oscillation, coherent detection, quad, multiplier, filters, harmonics, frequency divider, a frequency demodulator, trigger.

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