Throughput Enhancement by Cancellation of Synchronization and Pilot Channel for UMTS High Speed Downlink Packet Access

  • Florian Kaltenberger (Editor)
  • , Klemens Freudenthaler
  • , Steffen Paul
  • , Joachim Wehinger
  • , Christoph Mecklenbräuker
  • , Andreas Springer
  • , Jens Berkmann

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

In this paper, we show by simulations that the interference generated by the Synchronization Channel (SCH) and Common Pilot Channel (CPICH) has considerable impact on the throughput of the High-Speed Physical Downlink Shared Channel (HS-PDSCH) in UMTS. First, the simulation model for High Speed Downlink Packet Access (HSDPA) in UMTS is described. The downlink physical layer for the user data on the HS-PDSCH is modelled in detail, whereas the associated signalling is idealised as error-free. The interference from signalling and data channels on the HS-PDSCH is modelled adequately. As a general guideline for system settings in the simulations, we use the test cases specified in 3GPP TS 25.101 whenever applicable. Cancelling the SCH interference at the mobile side leads to an improvement of approx. 1dB on an additive white Gaussian noise channel. Therefore, it is worthwhile to implement interference cancellation (IC) for the SCH and CPICH in future mobile receivers for HSDPA.
Original languageEnglish
Title of host publicationProc. of 6th International Workshop on Signal Processing Advances for Wireless Communications (SPAWC2006)
Number of pages5
Publication statusPublished - Jun 2005

Fields of science

  • 202030 Communication engineering

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