Skip to main content

Return channel for the Brazilian digital television system-terrestrial

Abstract

Recently, it has been proposed the use of WiMAX for the return channel in digital television systems using a new frequency profile bellow 1 GHz, which has been calledWiMAX-700. The profile operates from 400 MHz to 960 MHz as primary band, which includes the UHF band, and optionally from 54 MHz to 400 MHz as secondary band. This work presents some aspects of the WiMAX-700 technology and some simulation results of models designed to determine the system capacity concerning the number of actives subscriber stations, according to specific proposed scenarios, traffic sources profiles, specifics propagation, and coverage conditions. The results presented in this work provide elements to determine the suitability of WiMAX-700 technology as the return channel for the interactive digital television applications.

References

  1. L. M. J. Barbosa; A. Budri; J. V. Gonçalves; E. Morais; R. Moreira; R. Sonntag; L. G. P. Meloni. Uma proposta para o canal de interatividade para o sbtvd através de comunicação sem fio em rf intrabanda. InXVIII Brazilian Symposium on Computer Graphics and Image Processing, pages 1–6, 2005.

  2. A. K. Budri; J. V. Gonçalves; L. G. P. Meloni. Wimax simulation models for return channel in digital television systems. InVI International Telecommunications Symposium — ITS2006, Fortaleza, 2006.

  3. Ieee standard for local and metropolitan area networks. part 16: Air interface for fixed and mobile broadband wireless access systems. amendment 2: Physical and medium access control layers for combined fixed and mobile operation in licensed bands, ieee p802.16d, 2004.

  4. Ieee standard for local and metropolitan area networks. part 16: Air interface for fixed and mobile broadband wireless access systems. amendment for physical and medium access control layers for combined fixed and mobile operation in licensed bands, ieee p802.16e, 2005.

  5. L. G. P. Meloni. Sistemas de tv digital usando antenas receptoras e transmissoras de tv para canal de retorno e como repetidor digital. Required Patent PI0304.013-5, INPI.

  6. L. G. P. Meloni. Método de canalização de sistemas de comunicação sem fio sobre o espectro de televisão e espectro adjacente. Required Patent 018060114062, INPI.

  7. L. G. P. Meloni. Método de sincronização para receptores ofdm através da estimação dos desvios temporal e freqüencial com base na análise do sinal recebido. Required Patent 018060120940, INPI.

  8. K. Fall; K. Varadhan.The NS Manual. UC Berkeley, LBL, USC/ISI, and Xerox PARC, Apr. 2005. http://www.isi.edu/nsnam/ ns/nsdocumentation. html, Apr. 2007.

  9. C. Eklund; R. Marks; K. Stanwood; S. Wang. Ieee standard 802.16: A technical overview of the wirelessman air interface for broadband wireless access.IEEE Communications Magazine, pages 98-106, Jun. 2002.

  10. A. Ahmad; C. Xin; F. He; M. Mckormic. Multimedia performance of ieee 802.16 mac. www.cs.nsu.edu/research/OPNET/Abstracts /IEEE_802.16/ATS_2005_HF.pdf, Apr. 2007.

  11. B. Petry.802.16 1 MAC Simulation Tools: Recommendations, Nov. 2000. http://grouper.ieee.org/ groups/802//16/tg1/mac/pres/802161mp-00_06.pdf, Apr. 2007.

  12. B. Petry. Urban transmission loss models for mobile radio in the 900 and 1800 mhz bands, Sep. 1991.

  13. J. Cao; W.S. Cleveland; Y. Gao; K. Jeffay; F.D. Smith; M.C. Weigle. Stochastic models for generating synthetic http source traffic. In Proceedings ofIEEE INFOCOM, Hong Kong, Mar. 2004.

  14. S. Ramachandran; C.W. Bostian; S. F. Midkiff. Performance evaluation of ieee 802.16 for broadband wireless acces. InProceedings of OPNETWORK 2002, Aug. 2002.

  15. M. Pätzold.Mobile Fading Channels. John Wiley & Sons, West Sussex, England, 2002.

    Book  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reprints and permissions

About this article

Cite this article

Meloni, L.G.P. Return channel for the Brazilian digital television system-terrestrial. J Braz Comp Soc 13, 83–94 (2007). https://doi.org/10.1007/BF03192403

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03192403

Keywords