[go: up one dir, main page]
More Web Proxy on the site http://driver.im/
Skip to main content
Springer Nature Link
Log in

Opportunistic Contention-Based Feedback Protocol for Downlink OFDMA Systems with Mixed Traffic

  • Conference paper
Advances in Multimedia Information Processing - PCM 2009 (PCM 2009)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 5879))

Included in the following conference series:

Abstract

An opportunistic feedback protocol is proposed for orthogonal frequency division multiple access (OFDMA) systems with mixed realtime (RT) and non-realtime (NRT) traffic. This protocol allocates a dedicated feedback channel for each RT user, while it allows all NRT users to compete to send feedback via a contention-based random access feedback channel. The proposed feedback protocol requires a fixed amount of resource to carry feedback from all RT users and some selected NRT users. The probability that NRT users attempt to send feedback is based on two parameters: a channel quality threshold, and the number of subcarriers (or clusters) whose channel quality is above the threshold. Simulation results demonstrate that allocating a dedicated feedback channel for RT user improves the achievable throughput significantly compared with allocating a dedicated traffic channel. For NRT users, the achievable sum rate of the proposed protocol when the number of users is moderate (20-50 users) approaches the ideal case when the channel quality of all users is known at the base station. The sum rate also is close to the ideal case when the number contention minislots per subcarrier is as low as 2 minislot per subcarrier.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Similar content being viewed by others

References

  1. Tang, T., Heath, R.: Opportunistic Feedback for Downlink Multiuser Diversity. IEEE Comm. Letters 9, 948–950 (2005)

    Article  Google Scholar 

  2. Tang, T., Heath, R., Cho, S., Yun, S.: Opportunistic Feedback in Clustered OFDM Systems. In: International Symposium on Wireless personal Multimedia Communications, San Diego, CA (September 2006)

    Google Scholar 

  3. Patil, S., Veciana, G.: Feedback and Opportunistic Scheduling in Wireless Networks. IEEE Trans. Wireless Commun. 6(12), 4227–4238 (2007)

    Article  Google Scholar 

  4. Agarwal, R., Majjigi, V., Han, Z., Vannithamby, R., Cioffi, J.: Low Complexity Resource Allocation with Opportunistic Feedback over Downlink OFDMA Networks. IEEE JSAC Special Issue on Limited Feedback 26(8), 1462–1472 (2008)

    Google Scholar 

  5. Jaewoo, S., Cioffi, J.: Feedback Reduction Scheme for Downlink Multiuser Diversity. IEEE Trans. Wireless Commun. 8(2), 668–672 (2009)

    Article  Google Scholar 

  6. Kolehmainen, N., Puttonen, J., Kela, P., Ristaniemi, T.: Channel Quality Indication Reporting Schemes for UTRAN Long Term Evolution Downlink. In: Vehicular Technology Conference, Marina Bay, Singapore, May 11-14, pp. 2522–2526 (2008)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Engineering and IT, University of Technology Sydney, NSW, 2007, Australia

    Rachod Patachaianand, Kumbesan Sandrasegaran, Huda Adibah Mohd Ramli & Riyaj Basukala

Authors
  1. Rachod Patachaianand
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Kumbesan Sandrasegaran
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Huda Adibah Mohd Ramli
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Riyaj Basukala
    View author publications

    You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

  1. Naresuan University, 65000, Phisanulok, Thailand

    Paisarn Muneesawang

  2. Microsoft Research Asia, 100109, Beijing, China

    Feng Wu

  3. Tokyo Institute of Technology, 226-8503, Yokohama, Japan

    Itsuo Kumazawa

  4. Mahanakorn University of Technology, 10530, Bankok, Thailand

    Athikom Roeksabutr

  5. Institute of Information Science, Academia Sinica, Taipei, Taiwan

    Mark Liao

  6. Chinese University of Hong Kong, Shatin, N.T., Hong Kong,  

    Xiaoou Tang

Rights and permissions

Reprints and permissions

Copyright information

© 2009 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Patachaianand, R., Sandrasegaran, K., Ramli, H.A.M., Basukala, R. (2009). Opportunistic Contention-Based Feedback Protocol for Downlink OFDMA Systems with Mixed Traffic. In: Muneesawang, P., Wu, F., Kumazawa, I., Roeksabutr, A., Liao, M., Tang, X. (eds) Advances in Multimedia Information Processing - PCM 2009. PCM 2009. Lecture Notes in Computer Science, vol 5879. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10467-1_115

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-10467-1_115

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-10466-4

  • Online ISBN: 978-3-642-10467-1

  • eBook Packages: Computer ScienceComputer Science (R0)

Publish with us

Policies and ethics

Search

Navigation