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LTE Uplink Power Control and its Impact on Service Performance

Authors:
Elena-Roxana Cîrstea
Silviu Ciochină

Keywords: power control; adaptive algorithm; throughput; load; SINR (Signal to Interference Plus Noise Ratio)

Abstract:
Long Term Evolution (LTE) is the new standard of the 3GPP (3rd Generation Partnership Project) and it was designed to increase capacity and improve service performance. Since SC-FDMA (Single Carrier-Frequency Division Multiple Access) is the multiple access scheme being used, compared with WCDMA (Wideband Code Division Multiple Access) multiple access scheme implemented in UMTS or HSPA, there are no intra-cell interferences. The problem of inter-cell interference is still present. One of the fundamental algorithms that was developed to control inter-cell interferences is the uplink fractional power control mechanism. This paper evaluates possible ways to tune this adaptive algorithm in order to maximize system performance. Simulation results are presented in order to identify the best option for algorithm parameter setting.

Pages: 57 to 61

Copyright: Copyright (c) IARIA, 2011

Publication date: September 25, 2011

Published in: conference

ISSN: 2308-4146

ISBN: 978-1-61208-156-4

Location: Rome, Italy

Dates: from September 25, 2011 to September 30, 2011