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Journal Article
An Unbiased Signal-to-Interference Ratio Estimator for the High Speed Downlink Packet Access System
- Authors
- Seok Ho Won, Whan Woo Kim, Jae Min Ahn, Deuk-Su Lyu
- Issue Date
- 2003-10
- Citation
- ETRI Journal, v.25, no.5, pp.418-421
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- 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.