As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
The article presents the concept of creating model of delays occurring in telecommunication system taking into account all sources of delays generated during data transmission between the source and destination nodes. Proposed model takes into account the existence of intermediary network devices that play a significant role in the general delay budget. The paper presents two measurement systems used to measure delays in 802.11 g based wireless networks and ones using ZigBee standard. Both systems were built based on the authors' concepts of hardware and software allowing measurement of delays by using additional connection for the synchronization of internal clocks. Described measurement systems selected amount of experiments was performed for varied network structures.
Institute of Measurement Science, Electronics and Control, Silesian University of Technology, Gliwice, Poland
References
1. P. Kielan, T. Trawiński, Przegląd Elektrotechniczny (Electrical Review) 86, 86 (2010) (in Polish)
2. T. Pustelny, C. Tyszkiewicz, K. Barczak, Opt. Appl. 33, 469 (2003)
3. K. Barczak, T. Pustelny, D. Dorosz, J. Dorosz, Europ. Phys. J. Special Topics 154, 11 (2008)
4. T. Hejczyk, M. Urbanczyk, W. Jakubik, Acta Phys. Pol. A 118, 1148 (2010)
5. L. Larry, R. Peterson, S. Bruce, I. Dave, Computer Networks - A System Approach, 5th ed., Morgan Kaufmann, 2011
6. S. Andru, J. Tanenbaum, J. David, T. Wetherall, Computer Networks, 5th ed., Pearson, 2011
7. M. Hassan, R. Jain, High Performance TCP/IP Networking: Concepts, Issues, and Solutions, Prentice-Hall, 2003
8. E. Michta, Communications Models of Measurement-Control Network Systems, Vol. 38, Zielona Góra Technical University, Zielona Góra 2000 (in Polish)
9. J. Jakubiec, Errors and Data Uncertainties in Measurement-Control Systems, Vol. 76, Silesian University of Technology, Gliwice 2010 (in Polish)
10. www.propox.com
11. www.atmel.com
12. www.smsc.com
13. J. Bentham, TCP/IP Lean - Web Servers for Embedded Systems, CMP, Wiley, London 2000
14. T. Topór-Kamiński, R. Żurkowski, in: Proc. VIIIth Conf. on Measurement Systems in Technical Science and Industry, Lagow (Poland), Zielona Góra Technical University, Zielona Góra 2010, p. 171 (in Polish)
15. 802.15.4 IEEE Standard for Information Technology - Telecommunications and Information Exchange between Systems - Local and Metropolitan Area Networks - Specific Requirements. Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPAN), New York 2003
16. ZigBee Specification v1.0 ZigBee Document 053473r00, ZigBee Alliance, San Ramon 2005
17. M. Grygiel, R. Żurkowski, Experimental system for measuring latency in ZigBee 802.15.4 standard, Wydział Elektrotechniki i Automatyki, Politechnika Gdańska, Gdańsk 2009 (in Polish)
18. Guide to the Expression of Uncertainty in Measurement, ISO/IEC/OIML/BIPM, 1992 (1995)
19. P. Struk,T. Pustelny, K. Gut, K. Gołaszewska, E. Kamińska, M. Ekielski, I. Pasternak, E. Łusakowska, A. Piotrowska, Acta Phys. Pol. A 116, 414 (2009)