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Improving cell edge throughput for LTE using combined uplink power control

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Abstract

Uplink power control is used in 3GPP Long Term Evolution (LTE) systems to maximize the power of the desired received signals while limiting the interference. This paper analyzes two power control mechanisms, Fractional Power Control (FPC) and Interference Based Power Control (IBPC). A way of combining them is proposed in order to find an efficient algorithm to control the transmitted Power Spectral Density (PSD) in order to compensate poor channel conditions and thus to obtain better performance in terms of cell edge throughput.

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Abbreviations

BS::

Base Station

CIBPC::

Cell Interference Based Power Control

eNB::

Evolved NodeB

LTE::

Long Term Evolution

FPC::

Fractional Power Control

OLPC::

Open Loop Power Control

PC::

Power Control

PG::

Path Gain

PL::

Path Loss

PRB::

Physical Resource Blocks

PSD::

Power Spectral Density

PUSCH::

Physical Uplink Shared Channel

SC-FDMA::

Single-carrier Frequency Division Multiple Access

SINR::

Signal to Interference Noise Ratio

SNR::

Signal to Noise Ratio

UE::

User Equipment

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Authors and Affiliations

  1. Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria

    Hristo Gochev, Vladimir Poulkov & Georgi Iliev

Authors
  1. Hristo Gochev
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  2. Vladimir Poulkov
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  3. Georgi Iliev
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Corresponding author

Correspondence to Vladimir Poulkov.

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Gochev, H., Poulkov, V. & Iliev, G. Improving cell edge throughput for LTE using combined uplink power control. Telecommun Syst 52, 1541–1547 (2013). https://doi.org/10.1007/s11235-011-9521-5

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  • DOI: https://doi.org/10.1007/s11235-011-9521-5

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