Uplink closed loop power control for LTE system

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Bilal Muhammad, Abbas Mohammed
Title: Uplink closed loop power control for LTE system
Conference name: 6th International Conference on Emerging Technologies, ICET
Year: 2010
Pagination: 88-93
ISBN: 978-142448058-6
Publisher: IEEE
City: Islamabad
URI/DOI: 10.1109/ICET.2010.5638376
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Language: English
Abstract: The role of uplink power control is to suppress interference. Power control refers to set output power levels of transmitters, base stations in the downlink and User Equipment (UE) in the uplink. In this paper the performance of 3GPP Long Term Evolution (LTE) closed loop power control combined with fractional path loss compensation factor is evaluated by simulating the effects of open loop error, Transmit Power Control (TPC) command delay and power headroom reporting. Simulation results show that the closed loop power control with fractional path loss compensation factor is advantageous compared to closed loop power control with full path loss compensation. The closed loop power control with fractional path loss compensation factor is found to improve the system performance in terms of mean bit rate by 63%.
Subject: Signal Processing\General
Keywords: LTE, Power control, Power headroom report, TPC
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