DocumentCode :
1611423
Title :
Traffic channel SIR estimation based on reverse pilot channel
Author :
Zhou Hua
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Volume :
2
fYear :
2003
Firstpage :
1813
Abstract :
Signal-to-interference ratio (SIR) is a very important metric of communication link quality. For wireless cellular systems, several control mechanism, such as power control, rate control, and allocation of radio resource are based on SIR estimation. In previous research, most of researches concentrate on WCDMA system in which pilot symbol is time-multiplexed with data symbol, this method is not feasible for cdma2000 system where pilot symbol is code-multiplexed with data symbol. This paper first develops SIR estimators based on reverse pilot channel and then derives the approximate analytic expression for its mean squared error (MSE) function, the accuracy of which is validated through simulation. It is shown that the MSE of the new SIR estimator is significantly smaller than the MSE of other widely used SIR estimators, especially in low SIR case.
Keywords :
3G mobile communication; cellular radio; mean square error methods; radio links; radiofrequency interference; telecommunication traffic; MSE; cdma2000 system; communication link quality; mean squared error function; reverse pilot channel; signal to interference ratio; traffic channel SIR estimation; wireless cellular systems; Analytical models; Communication system control; Control systems; Interference; Multiaccess communication; Power control; Power measurement; Radio control; System performance; Telecommunication control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
Type :
conf
DOI :
10.1109/ICCT.2003.1209879
Filename :
1209879
Link To Document :
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