LABORATORY 17

Laboratory of Information Transmission Networks

Head of Laboratory – Dr.Sc. (Tehnology), Prof. Vladimir Vishnevsky

Tel.: (095) 299 2904; E-mail: vishn@iitp.ru

The leading researchers of the laboratory include:

Dr. Sc.(Techn.)	V. Lazarev	Dr.	E. Fedotov
Dr. Sc.(Math.)	A. Lyakhov	Dr.	D. Mironov
Dr. Sc.(Techn.)	I. Ovseevich	Dr.	E. Pijl
Dr.	I. Astafjeva	Dr.	V. Vorobiev
Dr.	N. Bakanova

Directions of activity

Basic directions of the laboratory activity are development of theoretical bases for the analysis and synthesis of distributed information transmission networks and practical implementation of large-scale projects concerning with distributed computer communication networks.

The theoretical researches are carried in the following directions:

· Developing the methods for analysis and synthesis of wireless local and distributed information transmission networks controlled by the IEEE 802.11 protocol.

· Developing the methods and algorithms for topology synthesis and optimal routing choice in information transmission networks.

· Research and development of wireless networks on the base of infrared modems.

· Developing the methods and algorithms for analysis and synthesis of multi-service information transmission networks (taking the study of IP-telephony and videoconferences as an example).

· Developing the methods and algorithms for gateway connection of heterogeneous computer networks.

· Development of the methods of controlling the main and optional services provided for subscribers of telecommunicational networks.

MAIN RESULTS

In 2001 the Laboratory has continued the fundamental research in the fields of extreme graph theory, queuing networks theory, and reliability theory are vital. Moreover, the field experiments with various physical media (fiber-optical, radio, satellite communications), operational environments and various network architecture have been carried on simultaneously.

The Laboratory has obtained the following fundamental results:

- Mathematical models have been developed for synthesis of wireless corporate information transmission networks.

- On the base of discrete-time finite Markov chains, a complex of models has been developed for studying the measures of wireless local area networks in the high load condition and in the presence of noise. These models have been adopted to choose optimal values of IEEE 802.11 protocol parameters.

- Effective computing algorithms have been developed for solving the problem of topology synthesis and optimal routing choice in information transmission networks.

- Adaptive method of controlling the ATM cells flows in a communication network has been investigated.

- The problem of optimal choice of both a number of gateway systems and their places has been formulated within the framework of creating the United system for booking and selling of tickets for all transport kinds. A heuristic algorithm has been proposed for this problem solution.

- The method for distribution of digital flows in a transport network with a synchronous digital hierarchy has been developed within the framework of the investigation on controlling the main and optional services provided for subscribers of telecommunicational networks. This method allows optimizing a schedule of digital flows distribution and using efficiently the throughput of communication lines.

GRANTS FROM:

· PST.CLG.977405 (program "Partnership with NATO"): "Wireless access in INTERNET on base technology IEEE 802.11".

· Ministry of Science and Arts (Israel) and Ministry of a Science and Process Engineering (Russia): "Structural Optimization and Routing of Information Flows in Distributed Communication Networks" (project "Networks").

· Ministry of Industry, Science and Technologies of Russian Federation (project 2.22): "The development of the scientific information computer network for Obninsk town".

· Ministry of Industry, Science and Technologies of Russian Federation (project 5.9): "The development of the unit for connecting users to INTERNET by means of radio modems".

· Ministry of Industry, Science and Technologies of Russian Federation (State’s contract Num. 203-13 (00)-P): "The development of system of reservation and selling the tickets for all types of transport for different regions of Russia by using protocols TCP/IP and X.25".

· Special Programme "Informatization of Scientific Institutions and Presidium of RAS" (project "The development of the integrated information system of Presidium of RAS").

PUBLICATIONS IN 2001

1. Vishnevsky V.M., Lyakhov A.I. A Wireless Lan under High Load and in Noise: Throughput Evaluation // Automation and Remote Control. 2001, vol. 62, no. 8, pp. 1298-1311.

2. Vishnevsky V.M., Lyakhov A.I. Tereshchenko B.N., Vorobiev V.M., Astafjeva I.N., Tselikin Yu.V., Gaikovich G.F., Matsnev D.N. Regional wireless information transmission networks on the base of Radio-Ethernet protocol: state of art, modeling, and implementation examples // Information processes. 2001, vol. 1, no. 1, pp. 1-23 (http://www.jip.ru/).

3. Beryozka M.P., Vishnevsky V.M., Levner E.V., Fedotov E.V. Mathematical models for study of routing algorithms in information transmission networks // Information processes. 2001, vol. 1, no. 2, pp. 103-126 (http://www.jip.ru/).

4. Beryozka M.P., Vishnevsky V.M., Fedotov E.V. Modernization of routing algorithms in the computer network “Express-2” // ВКСС connect, 2001, no. 1, pp. 64-71.

5. Vishnevsky V.M., Prytov A.A., Fedotov E.V. State of art and perspectives of development of the information transmission network "Sirena" // ВКСС connect. 2001, no. 1, pp. 72-79.

6. Vishnevsky V.M., Rizov A.V., Fedotov E.V. Development principles of the united system for booking and selling of transport tickets // ВКСС connect. 2001, no. 1, pp. 80-85.

7. Kuznetsov N.A., Vishnevsky V.M., Goev A.I., Dmitriev V.P. Wireless optoelectronic information transmission systems // ВКСС connect. 2001, no. 5, pp. 19-23.

8. Vishnevsky V.M., Gaikovich G.F., Matsnev D.N., Tereshchenko B.N., Tselikin Yu.V. Wireless information transmission networks for connecting scientific and educational institutions to Internet // ВКСС connect. 2001, no. 6, pp. 5-9.

9. Vishnevsky V.M., Lyakhov A.I. Adaptive Features of IEEE 802.11 Protocol: Utilization, Tuning and Modifications // Proc. of 8th HP-OVUA Conf., Berlin, June 2001.

10. Vorobiev V.M. Peculiarities of development of regional networks for science and education // ВКСС connect. 2001, no. 6, pp. 10-16.

11. Vishnevsky V.M., Vorobiev V.M. Ipv6 in information transmission radio-networks for science and education // Proc. 7th Int. Conf. "Information networks, systems, and technologies" ICINASTe-2001, Minsk, vol. 2, pp. 132-135.

(http://icinaste.unibel.by/).

12. Vishnevsky V.M., Lyakhov A.I., Matsnev D.N., Tereshchenko B.N., Tselikin Yu.V. Radionet network: experience of development and implementation // Proc. 7th Int. Conf. "Information networks, systems, and technologies" ICINASTe-2001, Minsk, vol. 2, pp. 135-140 (http://icinaste.unibel.by/).

13. Vorobiev V.M. Integral services in regional packet-switched networks for science and education // Proc. 7th Int. Conf. "Information networks, systems, and technologies" ICINASTe-2001, Minsk, vol. 2, pp. 189-194 (http://icinaste.unibel.by/).

14. Vorobiev V.M. Models of decreasing the load induced by most frequently requested documents // Proc. 14th Int. Sci. Conf. "Mathematical methods in technique and technologies" ММТТ-14, 2001, Smolensk, vol. 5, pp. 117-118.

15. Vorobiev V.M. A model of adopting the technology of wavelength division in metropolitan area networks // Proc. 14th Int. Sci. Conf. "Mathematical methods in technique and technologies" ММТТ-14, 2001, Smolensk, vol. 5, pp. 118-120.

16. Vishnevsky V.M., Lyakhov A.I. Mathematical modeling of wireless data transfer networks based on IEEE802.11 protocol // Proceeding of International Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 131-151.

17. Rizov А.V., Fedotov Е.V. The one problem to association of diverse communication networks // Proceeding of Internalional Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 162-163.

18. Vorobiev V.M. Scientific-education distributed multiservice packet switched network // Proceeding of Internalional Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 168-178.

19. Fedotov E.V. Low estimate of middle delay at using one-way strategy of way selection in switch networks // Proceeding of Internalional Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 183-186.

20. Ranykov M.T., Trahtengerts E.A. Some methods of estimate on parameters of last mile // Proceeding of Internalional Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 192-199.

21. Lazarev V.G., Folomeev A.K. Adaptive method for controlling the ATM cells flows in a communication line // Proc. Conf. of Professor, Teacher, Scientific and Engineer Staff of MTUSI, 20.02.-01.03.2001, pp. 228-229.

22. Lazarev V.G., Folomeev A.K. Methods for adaptive control of the ATM cells flows in a communication network // Proc. 56th scientific session dedicated to the Radio Day, 16-17.05.2001, vol. 1, pp. 93-95.

23. Kiselev E., Khrumov A., Lazarev V., Lazarev Yu. Digital Flows Allocation in the Transport Network, Build with SDH // Proceedings of the Networks, System and Technologies ICINASTe-2001, Minsk, BSEU, vol. 1, pp. 27-29

(http://icinaste.unibel.by/).

24. Lazarev V.G., Faleeva O.I. Roaming organization in networks with a large number of regions // Proceedings of the Networks, System and Technologies ICINASTe-2001, Minsk, BSEU, vol. 2, pp. 40-42 (http://icinaste.unibel.by/).

25. Bogomolova N.E., Lazarev V.G. Service control in broadband mobile network // Proceeding of International Symposium on Problems of Modular Systems & Networks (ICSNET’2001), 2001, Moscow, pp. 210-215.

26. Vishnevsky V.M., Lyakhov A.I. IEEE 802.11 Wireless LAN: Saturation Throughput Analysis with Seizing Effect Consideration // Cluster Computing. 2002, no. 5, pp. 133-144 (to be published).