Contrasting Open-Loop and Closed-Loop Power Control Performance in UTRAN LTE Uplink by UE Trace Analysis

Mullner, R.; Ball, C.F.; Ivanov, K.; Lienhart, Johann; Hric, Peter

doi:10.1109/icc.2009.5198853

Cited by 49 publications

(30 citation statements)

References 3 publications

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“…A specific implementation is described in [17], where closed-loop correction values i are determined by comparing filtered RSSI and SINR measurements with configurable thresholds representing a two-dimensional decision matrix as shown in Figure 9a. The lower/upper SINR and RSSI thresholds LOW QUAL, UP QUAL, LOW LEV and UP LEV define a so-called PC window.…”

Section: Combined Radio Condition and Load Dependent Trigger Criteriamentioning

confidence: 99%

Enhancing uplink performance in UTRAN LTE networks by load adaptive power control

Mullner

Ball

Boussif

et al. 2010

Trans Emerging Tel Tech

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SUMMARYUplink power control in 3GPP UTRAN long term evolution (LTE) networks consists of a closed-loop scheme around an open-loop point of operation. The uplink performance of the network is decisively influenced by power control. This paper provides insight into the uplink power control procedure and its interworking with adaptive transmission bandwidth (ATB) as well as adaptive modulation and coding (AMC). A detailed performance evaluation is presented based on system level simulations. In the first step, the performance of pure open-loop power control (OLPC) was analysed and the impact of parameter settings on resource allocation, utilisation of specific modulation and coding schemes (MCS), re-transmission rate, and resulting throughput was determined. A two-dimensional parameter optimisation for full path-loss (PL) compensation and fractional power control (FPC) was performed to conclude the best strategy for the trade-off between network capacity and coverage. In the second step, the impact of traffic load on the interaction between the different LTE radio resource management algorithms was analysed. A novel strategy is presented which introduces traffic load dependent decisions for the closed-loop power control (CLPC) component to optimise the uplink throughput. This solution provides an automatic configuration for LTE networks without further intervention by the operator.

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Section: Combined Radio Condition and Load Dependent Trigger Criteriamentioning

confidence: 99%

Enhancing uplink performance in UTRAN LTE networks by load adaptive power control

Mullner

Ball

Boussif

et al. 2010

Trans Emerging Tel Tech

View full text Add to dashboard Cite

show abstract

“…For this paper, we used the European Telecommunication Standards Institute (ETSI) traffic model [3], where the packets size and the packet transmission timer are assumed to follow the truncated Pareto distribution. The ETSI model is a widely used in various analytical and simulation studies of 3GPP networks, such as [5], [8], [11], [15], [16]. [7] shows that the M/G/∞ model with infinite-variance Pareto distributions can be used to generate self-similar traffic.…”

Section: A Bursty Packet Traffic Modelmentioning

confidence: 99%

Analytic analysis of LTE/LTE-Advanced power saving and delay with bursty traffic

Bhamber¹,

Fowler²,

Braimiotis³

et al. 2013

2013 IEEE International Conference on Communications (ICC)

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The 4G standard Long Term Evolution (LTE) has been developed for high-bandwidth mobile access for today's data-heavy applications. However, these data-heavy applications require lots of battery power on the user equipment. To extend the user equipment battery lifetime, plus further support various services and large amount of data transmissions, the 3GPP standards for LTE/LTE-Advanced has adopted discontinuous reception (DRX). In this paper, we take an overview of various static/fixed DRX cycles of the LTE/LTE-Advanced power saving mechanisms, by modelling the system with bursty packet data traffic using a semi-Markov process. Based on the analytical model, we will show the trade-off relationship between the power saving and wake-up delay performance. This work will help to select the best parameters when LTE/LTE-Advanced DRX is implemented depending on the protocols and desired outcome of the traffic.

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“…For this paper, we used the European Telecommunication Standards Institute (ETSI) traffic model [4], where the packets size and the packet transmission timer are assumed to follow the truncated Pareto distribution. The [4] is a widely used in various analytical and simulation studies of 3GPP networks, such as [7], [10], [12], [16], [17]. The LTE DRX mechanism is a semi-Markov process [11] and is illustrated in Figure 2.…”

Section: A Bursty Packet Traffic Modelmentioning

confidence: 99%

Analysis of adjustable and fixed DRX mechanism for power saving in LTE/LTE-Advanced

Fowler

Bhamber

Mellouk

2012

2012 IEEE International Conference on Communications (ICC)

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Abstract-The 4G standard Long Term Evolution (LTE) has been developed for high-bandwidth mobile access for today's data-heavy applications, consequently, a better experience for the end user. To extend the user equipment battery lifetime, plus further support various services and large amount of data transmissions, the 3GPP standards for LTE/LTE-Advanced has adopted discontinuous reception (DRX). However, there is a need to optimize the DRX parameters, so as to maximize power saving without incurring network re-entry and packet delays. In this paper, we take an overview of the fixed frame DRX cycle and compare it against an adjustable DRX cycle of the LTE/LTEAdvanced power saving mechanism, by modelling the system with bursty packet data traffic using a semi-Markov process. Based on the analytical model, we will show the trade-off relationship between the power saving and wake-up delay performance.Index Terms-Broad band networks, quality of service, WDM.

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Contrasting Open-Loop and Closed-Loop Power Control Performance in UTRAN LTE Uplink by UE Trace Analysis

Cited by 49 publications

References 3 publications

Enhancing uplink performance in UTRAN LTE networks by load adaptive power control

Enhancing uplink performance in UTRAN LTE networks by load adaptive power control

Analytic analysis of LTE/LTE-Advanced power saving and delay with bursty traffic

Analysis of adjustable and fixed DRX mechanism for power saving in LTE/LTE-Advanced

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