Performance evaluation of uplink closed loop power control for LTE system

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Bilal Muhammad, Abbas Mohammed
Title: Performance evaluation of uplink closed loop power control for LTE system
Conference name: 70th Vehicular Technology Conference
Year: 2009
ISBN: 978-142442515-0
Publisher: IEEE
City: Anchorage
URI/DOI: 10.1109/VETECF.2009.5378852
ISI number: 000280580400337
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: Uplink power control is a key radio resource management feature in the 3GPP Long Term Evolution (LTE). In order to adapt to changes in the inter-cell interference situation or to correct power amplifier errors, closed-loop adjustments should be applied. In this paper the performance of closed loop power control combined with fractional path loss compensation factor is studied, and an optimal value for the path loss compensation factor is investigated. 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 68% and utilizes the battery power more effectively.
Subject: Signal Processing\General
Keywords: Battery power, Bit rates, Closed loop power control, Closed-loop, Intercell interference, Long term evolution; Optimal values, Path loss, Performance evaluation, Radio resource management, Uplink power controls
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