Data-aided SIR measurement for closed loop fast TPC suitable for W-CDMA with closed loop transmit diversity

Priantoro, Akhmad Unggul and Mohamad, Masrul Faizal and Okada, Minoru and Yamamoto , Heiichi (2005) Data-aided SIR measurement for closed loop fast TPC suitable for W-CDMA with closed loop transmit diversity. In: 2005 IEEE International Conference on Personal Wireless Communications, ICPWC 2005, 23-25 Jan. 2005, New Delhi.

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Abstract

This paper investigates the effect of signal-to-interference ratio (SIR) measurement accuracy exploiting data modulated symbols in SIR-based fast closed loop transmit power control (TPC) considering the application of closed loop transmit diversity mode 1 in wideband code division multiple access (W-CDMA) system. SIR measurement is performed after removing the random data modulation so as to maximize the instantaneous received power. Computer simulation results clarify the advantage of data-aided SIR measurement even in the presence of feedback information (FBI) errors. Further, we also clarified that exploiting data symbols in addition to DPCH pilot symbols exhibits better performance. The data-aided SIR measurement technique is an add-on functionality to the standardized user equipment (UE) so that the adoption shall not affect the operation of commercial systems.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	4876/30964 (Print ISBN: 0-7803-8964-6, DOI: 10.1109/ICPWC.2005.1431325)
Uncontrolled Keywords:	Closed loop control systems; Computer simulation; Data acquisition; Error analysis; Signal processing
Subjects:	Q Science > Q Science (General) T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Nor Fathiah Jumiran (Part Time)
Date Deposited:	26 Aug 2013 14:27
Last Modified:	26 Aug 2013 14:27
URI:	http://irep.iium.edu.my/id/eprint/30964

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