Open AccessAn Unbiased Signal‐to‐Interference Ratio Estimator for the High Speed Downlink Packet Access System
Author(s) -
Won Seok Ho,
Kim Whan Woo,
Ahn Jaemin,
Lyu DeukSu
Publication year - 2003
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.03.0203.0006
Subject(s) - estimator , telecommunications link , network packet , link adaptation , computer science , coding (social sciences) , signal to interference ratio , algorithm , channel (broadcasting) , electronic engineering , mathematics , statistics , computer network , fading , engineering , physics , power (physics) , quantum mechanics
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.