Hybrid ARQ Based on Rateless Coding for UTRAN LTE Wireless Systems

  • Lorenzo Favalli
  • Matteo Lanati
  • Pietro Savazzi
Part of the Signals and Communication Technology book series (SCT)

In this work an incremental redundancy hybrid automatic repeat request (H-ARQ) scheme, based on rateless coding, is introduced for future extensions of third generation mobile systems. The proposed solution is tested by simulating an UMTS terrestrial radio access network (UTRAN) long term evolution (LTE) cell environment and compared to the standardized hybrid ARQ scheme. Performance results are obtained in terms of average throughput and cumulative density functions (CDF) of the average delays. The main contributions of this work are a novel cell traffic simulation model for rateless coded transmissions and the application of such methods to UTRAN LTE hybrid ARQ systems.


Channel State Information Code Rate Forward Error Correction High Speed Downlink Packet Access Raptor Code 
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  1. 1.
    Luby M (2002) LT Codes. Proc. of 43rd IEEE Symposium on Foundations of Computer Science (FOCS), November 16-19: 271-280Google Scholar
  2. 2.
    Ekström H, Furuksär A, Karlsson J, Meyer M, Parkvall S, Torsner J, Wahlqvist M (2006) Technical Solutions for the 3G Long-Term Evolution. IEEE Commun. Mag., Vol. 44, Issue 3, March: 38-45CrossRefGoogle Scholar
  3. 3.
    3GPP TR 25.308, v. 5.2.0, “High Speed Downlink Packet Access (HSDPA) Over-all description,” release 5.
  4. 4.
    Castura J (2006) Rateless coding over fading channels. IEEE Commun. Letters, Vol. 10, No. 1, Jan.: 46-48CrossRefGoogle Scholar
  5. 5.
    MacKay DJC (2005) Fountain codes. IEEE Proc. Commun., Vol. 152, No.6, De-cember: 1062-1068CrossRefGoogle Scholar
  6. 6.
    Shokrollahi A (2006) Raptor codes. IEEE Trans. Information Theory, Vol. 52, No.6, June: 2552-2567MathSciNetGoogle Scholar
  7. 7.
    3GPP TR 25.814, v. 7.1.0, “Physical layer aspects for evolved universal terrestrial radio access (UTRA),” release 7.
  8. 8.
    Recommendation ITU-R M.1225, Guidlines for evaluation of radio transmission technologies FOR IMT-2000 (Question ITU-R 39/8)Google Scholar
  9. 9.
    Jeon WS, Jeong DJ, Kim B (2004) Packet Scheduler for Mobile Internet Services Using High Speed Downlink Packet Access. IEEE Trans. on Wireless Commun., Vol. 3, No. 5, September: 1789-1801CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Lorenzo Favalli
    • 1
  • Matteo Lanati
    • 1
  • Pietro Savazzi
    • 1
  1. 1.Dipartimento di ElettronicaUniversit0 degli Studi di PaviaItaly

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