By Topic

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

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
A. U. Priantoro ; Dept. of Electr. & Comput. Eng., Int. Islamic Univ., Kuala Lumpur, Malaysia ; M. F. Mohamad ; M. Okada ; H. Yamamoto

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) systems. 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.

Published in:

2005 IEEE International Conference on Personal Wireless Communications, 2005. ICPWC 2005.

Date of Conference:

23-25 Jan. 2005