ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지

An Unbiased Signal-to-Interference Ratio Estimator for the High Speed Downlink Packet Access System

  • Won, Seok-Ho (Mobile Telecommunication Research Laboratory, ETRI) ;
  • Kim, Whan-Woo (Division of Electrical and Computer Engineering, Chungnam National University) ;
  • Ahn, Jae-Min (Division of Electrical and Computer Engineering, Chungnam National University) ;
  • Lyu, Deuk-Su (Mobile Telecommunication Research Laboratory, ETRI)
  • Received : 2003.04.09
  • Published : 2003.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

We propose an unbiased signal-to-interference ratio (SIR) estimator for the high speed downlink packet access (HSDPA) system. The proposed SIR estimator solves the problem of underestimation present in conventional SIR estimators and is suitable for channel quality measurement in the adaptive modulation and coding scheme of HSDPA, which requires accurate SIR estimation for optimum adaptive modulation and coding selection. Our analysis and simulation results demonstrate the improved estimation performance of the proposed SIR estimator.

Keywords

References

  1. High Speed Downlink Packet Acess;3GPP, TR25.858(v5.0.0) Technical Specification Group (Radio Access Network)
  2. IEEE Tran. Commun. v.47 no.4 Variable Rate Adaptive Modulation for DS-CDMA Laus, V.K.;Maric, S.V.
  3. CDMA Mobile Station Modem ASIC Technical Manual, DL80-7251-3 X4 Qualcomm
  4. IEICE Trans. Commun. v.E81-B no.7 Performance Evaluation on Power Control and Diversity of Next-Generation CDMA System Mizuguchi, H.;Aoyama, A.;Yoshida, S.;Ushirokawa, A.
  5. ETRI J. v.25 no.4 Linear Diversity Analysis for M-ary Square Quadrature Amplitude Modulation over Nakagami Fading Channels Yoon, D.;Chang, D.I.;Kim, N.S.;Woo, H.S.
  6. ETRI J. v.25 no.2 Serial Concatenation of Space-Time and Recursive Convolutional Codes Ko, Y.J.;Kim, J.I.
  7. Communication Systems Haykin, S.
  8. IEEE J. Select. Areas Commun. v.20 no.2 Multipath Interference Canceller for High-Speed Packet Transmission With Adaptive Modulation and Coding Scheme in W-CDMA Forward Link Higuchi, K.;Fujiwara, A.;Sawahasi, M.